<html lang="en">
<head>
<title>Physical projects</title>
-<!-- 2020-06-22 Mon 21:01 -->
+<!-- 2020-07-12 Sun 01:42 -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="Org-mode">
</div>
-
-
<div id="outline-container-sec-2-7" class="outline-3">
<h3 id="sec-2-7"><span class="section-number-3">2.7</span> Radio</h3>
<div class="outline-text-3" id="text-2-7">
</div></div></div>
<footer id="postamble" class="">
<div><p class="author">Author: Svjatoslav Agejenko</p>
-<p class="date">Created: 2020-06-22 Mon 21:01</p>
+<p class="date">Created: 2020-07-12 Sun 01:42</p>
<p class="creator"><a href="http://www.gnu.org/software/emacs/">Emacs</a> 26.1 (<a href="http://orgmode.org">Org-mode</a> 9.1.9)</p>
</div>
</footer>
)}}}
-
-
** Radio
+ NanoVNA case
{{{imglnk(
--- /dev/null
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 6 6
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Text HLabel 3900 3350 0 50 Input ~ 0
+V_in
+Text HLabel 4450 3350 2 50 Input ~ 0
+V_out
+Text HLabel 4150 3650 0 50 BiDi ~ 0
+GND
+$EndSCHEMATC
--- /dev/null
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 6 6
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Text HLabel 3900 3350 0 50 Input ~ 0
+V_in
+Text HLabel 4450 3350 2 50 Input ~ 0
+V_out
+Text HLabel 4150 3650 0 50 BiDi ~ 0
+GND
+$EndSCHEMATC
--- /dev/null
+EESchema-LIBRARY Version 2.4
+#encoding utf-8
+#
+# Connector_Conn_WallPlug
+#
+DEF Connector_Conn_WallPlug P 0 0 Y Y 1 F N
+F0 "P" -50 175 50 H V C BNN
+F1 "Connector_Conn_WallPlug" -225 0 50 V V C BNN
+F2 "" 400 0 50 H I C CNN
+F3 "" 400 0 50 H I C CNN
+DRAW
+A -125 0 150 -899 899 0 1 10 f -125 -150 -125 150
+P 2 0 1 20 -175 -100 -25 -100 N
+P 2 0 1 20 -175 100 -25 100 N
+P 2 0 1 10 -125 -150 -125 150 N
+P 2 0 1 0 -25 -100 100 -100 N
+P 2 0 1 0 -25 100 100 100 N
+X AC_P 1 200 100 200 L 50 50 1 1 w
+X AC_N 2 200 -100 200 L 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
+# Connector_USB_A
+#
+DEF Connector_USB_A J 0 40 Y Y 1 F N
+F0 "J" -200 450 50 H V L CNN
+F1 "Connector_USB_A" -200 350 50 H V L CNN
+F2 "" 150 -50 50 H I C CNN
+F3 "" 150 -50 50 H I C CNN
+$FPLIST
+ USB*
+$ENDFPLIST
+DRAW
+C -150 85 25 0 1 10 F
+C -25 135 15 0 1 10 F
+S -200 -300 200 300 0 1 10 f
+S -60 190 -170 210 0 1 0 F
+S -50 180 -180 230 0 1 0 N
+S -5 -300 5 -270 0 1 0 N
+S 10 50 -20 20 0 1 10 F
+S 200 -105 170 -95 0 1 0 N
+S 200 -5 170 5 0 1 0 N
+S 200 195 170 205 0 1 0 N
+P 4 0 1 10 -125 85 -100 85 -50 135 -25 135 N
+P 4 0 1 10 -100 85 -75 85 -50 35 0 35 N
+P 4 0 1 10 25 110 25 60 75 85 25 110 F
+P 2 1 1 10 -75 85 25 85 N
+X VBUS 1 300 200 100 L 50 50 1 1 W
+X D- 2 300 -100 100 L 50 50 1 1 P
+X D+ 3 300 0 100 L 50 50 1 1 P
+X GND 4 0 -400 100 U 50 50 1 1 W
+X Shield 5 -100 -400 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_C
+#
+DEF Device_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "Device_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_D_Bridge_+-AA
+#
+DEF Device_D_Bridge_+-AA D 0 0 Y Y 1 F N
+F0 "D" 100 275 50 H V L CNN
+F1 "Device_D_Bridge_+-AA" 100 200 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ D*Bridge*
+ D*Rectifier*
+$ENDFPLIST
+DRAW
+C -200 0 10 0 1 0 F
+C 0 -200 10 0 1 0 F
+C 0 200 10 0 1 0 F
+C 200 0 10 0 1 0 F
+P 2 0 1 10 -100 150 -50 100 N
+P 2 0 1 10 -50 -100 -100 -150 N
+P 2 0 1 10 100 -50 150 -100 N
+P 2 0 1 10 100 50 150 100 N
+P 4 0 1 10 -150 100 -100 50 -75 125 -150 100 N
+P 4 0 1 10 -100 -50 -150 -100 -75 -125 -100 -50 N
+P 4 0 1 10 50 100 100 150 125 75 50 100 N
+P 4 0 1 10 125 -75 50 -100 100 -150 125 -75 N
+P 5 0 1 0 -200 0 0 -200 200 0 0 200 -200 0 N
+X + 1 300 0 100 L 50 50 1 1 P
+X - 2 -300 0 100 R 50 50 1 1 P
+X ~~ 3 0 300 100 D 50 50 1 1 P
+X ~~ 4 0 -300 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_R
+#
+DEF Device_R R 0 0 N Y 1 F N
+F0 "R" 80 0 50 V V C CNN
+F1 "Device_R" 0 0 50 V V C CNN
+F2 "" -70 0 50 V I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ R_*
+$ENDFPLIST
+DRAW
+S -40 -100 40 100 0 1 10 N
+X ~ 1 0 150 50 D 50 50 1 1 P
+X ~ 2 0 -150 50 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_Transformer_1P_1S
+#
+DEF Device_Transformer_1P_1S T 0 40 Y N 1 F N
+F0 "T" 0 250 50 H V C CNN
+F1 "Device_Transformer_1P_1S" 0 -300 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+A -100 -150 50 899 1 0 1 0 N -100 -100 -50 -150
+A -100 -150 50 -1 -899 0 1 0 N -50 -150 -100 -199
+A -100 -50 50 899 1 0 1 0 N -100 0 -50 -50
+A -100 -50 50 -1 -899 0 1 0 N -50 -50 -100 -99
+A -100 50 50 899 1 0 1 0 N -100 100 -50 50
+A -100 50 50 -1 -899 0 1 0 N -50 50 -100 1
+A -100 150 50 899 1 0 1 0 N -100 200 -50 150
+A -100 150 50 -1 -899 0 1 0 N -50 150 -100 101
+A 100 -50 50 899 -1799 0 1 0 N 100 0 51 -50
+A 100 -50 50 1799 -899 0 1 0 N 51 -50 100 -99
+A 100 50 50 899 -1799 0 1 0 N 100 100 51 50
+A 100 50 50 1799 -899 0 1 0 N 51 50 100 1
+A 100 150 50 899 -1799 0 1 0 N 100 200 51 150
+A 100 150 50 1799 -899 0 1 0 N 51 150 100 101
+A 101 -150 50 910 -1799 0 1 0 N 101 -100 52 -150
+A 101 -150 50 -912 -1799 0 1 0 N 101 -199 52 -150
+P 2 0 1 0 -25 200 -25 -200 N
+P 2 0 1 0 25 -200 25 200 N
+X AA 1 -400 200 300 R 50 50 1 1 P
+X AB 2 -400 -200 300 R 50 50 1 1 P
+X SA 3 400 -200 300 L 50 50 1 1 P
+X SB 4 400 200 300 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_Voltmeter_DC
+#
+DEF Device_Voltmeter_DC MES 0 1 N N 1 F N
+F0 "MES" -130 40 50 H V R CNN
+F1 "Device_Voltmeter_DC" -130 -30 50 H V R CNN
+F2 "" 0 100 50 V I C CNN
+F3 "" 0 100 50 V I C CNN
+DRAW
+C 0 0 100 0 1 10 N
+T 0 0 0 100 0 0 0 V Normal 0 C C
+P 2 0 0 0 -125 -125 -75 -75 N
+P 2 0 0 0 75 75 125 125 N
+P 3 0 0 0 75 125 125 125 125 75 N
+P 2 0 1 0 10 150 30 150 N
+P 2 0 1 0 20 160 20 140 N
+X - 1 0 -200 100 U 50 50 1 1 P
+X + 2 0 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Regulator_Linear_LM317_3PinPackage
+#
+DEF Regulator_Linear_LM317_3PinPackage U 0 10 Y Y 1 F N
+F0 "U" -150 125 50 H V C CNN
+F1 "Regulator_Linear_LM317_3PinPackage" 0 125 50 H V L CNN
+F2 "" 0 250 50 H I C CIN
+F3 "" 0 0 50 H I C CNN
+ALIAS AZ1117-ADJ
+$FPLIST
+ SOT?223*
+ SOT?89*
+ TO?220*
+ TO?252*
+ TO?263*
+$ENDFPLIST
+DRAW
+S -200 75 200 -200 0 1 10 f
+X ADJ 1 0 -300 100 U 50 50 1 1 I
+X VO 2 300 0 100 L 50 50 1 1 w
+X VI 3 -300 0 100 R 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
+# Switch_SW_DPST
+#
+DEF Switch_SW_DPST SW 0 0 Y N 1 F N
+F0 "SW" 0 200 50 H V C CNN
+F1 "Switch_SW_DPST" 0 -200 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+C -80 -100 20 0 0 0 N
+C -80 100 20 0 0 0 N
+C 80 -100 20 0 0 0 N
+C 80 100 20 0 0 0 N
+P 2 0 0 0 -60 -90 50 -40 N
+P 2 0 0 0 -60 110 50 160 N
+P 2 0 0 0 0 -50 0 -25 N
+P 2 0 0 0 0 0 0 25 N
+P 2 0 0 0 0 50 0 75 N
+P 2 0 0 0 0 100 0 125 N
+X 1 1 -200 -100 100 R 50 50 1 1 P
+X 2 2 200 -100 100 L 50 50 1 1 P
+X 3 3 -200 100 100 R 50 50 1 1 P
+X 4 4 200 100 100 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# power_GND
+#
+DEF power_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "power_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+#End Library
--- /dev/null
+(kicad_pcb (version 4) (host kicad "dummy file") )
--- /dev/null
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
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+RootSch=
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+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
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+F 0 "MES1" H 8453 4646 50 0000 L CNN
+F 1 "Voltmeter_DC" H 8453 4555 50 0000 L CNN
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+F 3 "~" V 8300 4700 50 0001 C CNN
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+$EndComp
+$Comp
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+F 0 "MES2" H 9353 4696 50 0000 L CNN
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+F 2 "" V 9200 4750 50 0001 C CNN
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+$EndComp
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+$Sheet
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+U 5F182C5C
+F0 "sheet5F182C5C" 50
+F1 "DC2DC step down.sch" 50
+F2 "V_in" I L 7200 4150 50
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+$EndSheet
+$Comp
+L power:GND #PWR022
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+$EndComp
+Wire Wire Line
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+L power:GND #PWR021
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+ 1 5750 3450
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+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+L power:GND #PWR?
+U 1 1 5F1901DC
+P 8800 5200
+F 0 "#PWR?" H 8800 4950 50 0001 C CNN
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+F 2 "" H 8800 5200 50 0001 C CNN
+F 3 "" H 8800 5200 50 0001 C CNN
+ 1 8800 5200
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+$EndComp
+Wire Wire Line
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+Connection ~ 8800 5000
+Wire Wire Line
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+Text Label 8800 5150 0 50 ~ 0
+13
+$EndSCHEMATC
--- /dev/null
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 6 6
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
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+U 1 1 5F0CC9AF
+P 2750 1650
+F 0 "J1" H 2807 2117 50 0000 C CNN
+F 1 "USB_A" H 2807 2026 50 0000 C CNN
+F 2 "" H 2900 1600 50 0001 C CNN
+F 3 " ~" H 2900 1600 50 0001 C CNN
+ 1 2750 1650
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+$EndComp
+Wire Wire Line
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+$Comp
+L Connector:USB_A J4
+U 1 1 5F0CE176
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+F 0 "J4" H 3607 2117 50 0000 C CNN
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+L power:GND #PWR03
+U 1 1 5F0CF308
+P 2750 2100
+F 0 "#PWR03" H 2750 1850 50 0001 C CNN
+F 1 "GND" H 2755 1927 50 0000 C CNN
+F 2 "" H 2750 2100 50 0001 C CNN
+F 3 "" H 2750 2100 50 0001 C CNN
+ 1 2750 2100
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+$EndComp
+$Comp
+L power:GND #PWR06
+U 1 1 5F0CF8C4
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+F 0 "#PWR06" H 3550 1850 50 0001 C CNN
+F 1 "GND" H 3555 1927 50 0000 C CNN
+F 2 "" H 3550 2100 50 0001 C CNN
+F 3 "" H 3550 2100 50 0001 C CNN
+ 1 3550 2100
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+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Text HLabel 1100 950 0 50 Input ~ 0
+5V
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+Wire Wire Line
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+Connection ~ 3850 1650
+Text HLabel 1100 1250 0 50 Input ~ 0
+GND
+Text HLabel 1350 4400 0 50 BiDi ~ 0
+Battery
+$Comp
+L power:GND #PWR02
+U 1 1 5F0D429A
+P 1200 1300
+F 0 "#PWR02" H 1200 1050 50 0001 C CNN
+F 1 "GND" H 1205 1127 50 0000 C CNN
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+ 1 1200 1300
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+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+L Connector:USB_A J7
+U 1 1 5F0D4E49
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+F 0 "J7" H 4407 2117 50 0000 C CNN
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+Wire Wire Line
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+Wire Wire Line
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+L power:GND #PWR09
+U 1 1 5F0D4E57
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+ 1 4350 2100
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+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
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+U 1 1 5F0D832F
+P 4900 1950
+F 0 "C2" H 5015 1996 50 0000 L CNN
+F 1 "C" H 5015 1905 50 0000 L CNN
+F 2 "" H 4938 1800 50 0001 C CNN
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+Wire Wire Line
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+Connection ~ 4900 1650
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+L power:GND #PWR012
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+F 3 "" H 4900 2200 50 0001 C CNN
+ 1 4900 2200
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+$EndComp
+Wire Wire Line
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+U 1 1 5F0D95F5
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+F 0 "C5" H 5365 1646 50 0000 L CNN
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+F 2 "" H 5288 1450 50 0001 C CNN
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+L power:GND #PWR015
+U 1 1 5F0D9E27
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+F 2 "" H 5250 1850 50 0001 C CNN
+F 3 "" H 5250 1850 50 0001 C CNN
+ 1 5250 1850
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+$EndComp
+Wire Wire Line
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+L Connector:USB_A J2
+U 1 1 5F0DE4EE
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+F 0 "J2" H 2807 3717 50 0000 C CNN
+F 1 "USB_A" H 2807 3626 50 0000 C CNN
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+F 3 " ~" H 2900 3200 50 0001 C CNN
+ 1 2750 3250
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+L Connector:USB_A J5
+U 1 1 5F0DE4F9
+P 3550 3250
+F 0 "J5" H 3607 3717 50 0000 C CNN
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+L power:GND #PWR04
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+F 3 "" H 2750 3700 50 0001 C CNN
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+$Comp
+L power:GND #PWR07
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+Wire Wire Line
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+L Connector:USB_A J8
+U 1 1 5F0DE52A
+P 4350 3250
+F 0 "J8" H 4407 3717 50 0000 C CNN
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+F 2 "" H 4500 3200 50 0001 C CNN
+F 3 " ~" H 4500 3200 50 0001 C CNN
+ 1 4350 3250
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+$EndComp
+Wire Wire Line
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+L power:GND #PWR010
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+F 3 "" H 4350 3700 50 0001 C CNN
+ 1 4350 3700
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+$EndComp
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L Device:C C3
+U 1 1 5F0DE54F
+P 4900 3550
+F 0 "C3" H 5015 3596 50 0000 L CNN
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+Connection ~ 4900 3250
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+L power:GND #PWR013
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+F 0 "#PWR013" H 4900 3550 50 0001 C CNN
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+F 2 "" H 4900 3800 50 0001 C CNN
+F 3 "" H 4900 3800 50 0001 C CNN
+ 1 4900 3800
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+L Device:C C6
+U 1 1 5F0DE566
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+F 0 "C6" H 5365 3246 50 0000 L CNN
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+F 3 "~" H 5250 3200 50 0001 C CNN
+ 1 5250 3200
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+$EndComp
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+Connection ~ 4750 3050
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+L power:GND #PWR016
+U 1 1 5F0DE572
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+F 2 "" H 5250 3450 50 0001 C CNN
+F 3 "" H 5250 3450 50 0001 C CNN
+ 1 5250 3450
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+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L Connector:USB_A J3
+U 1 1 5F10B6BB
+P 2750 4850
+F 0 "J3" H 2807 5317 50 0000 C CNN
+F 1 "USB_A" H 2807 5226 50 0000 C CNN
+F 2 "" H 2900 4800 50 0001 C CNN
+F 3 " ~" H 2900 4800 50 0001 C CNN
+ 1 2750 4850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+L Connector:USB_A J6
+U 1 1 5F10B6C6
+P 3550 4850
+F 0 "J6" H 3607 5317 50 0000 C CNN
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+F 2 "" H 3700 4800 50 0001 C CNN
+F 3 " ~" H 3700 4800 50 0001 C CNN
+ 1 3550 4850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+L power:GND #PWR05
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+F 2 "" H 2750 5300 50 0001 C CNN
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+ 1 2750 5300
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+$EndComp
+$Comp
+L power:GND #PWR08
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+ 1 3550 5300
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+$EndComp
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+Wire Wire Line
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+$Comp
+L Connector:USB_A J9
+U 1 1 5F10B6F3
+P 4350 4850
+F 0 "J9" H 4407 5317 50 0000 C CNN
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+F 2 "" H 4500 4800 50 0001 C CNN
+F 3 " ~" H 4500 4800 50 0001 C CNN
+ 1 4350 4850
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+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L power:GND #PWR011
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+$EndComp
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+L Device:C C4
+U 1 1 5F10B718
+P 4900 5150
+F 0 "C4" H 5015 5196 50 0000 L CNN
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+F 2 "" H 4938 5000 50 0001 C CNN
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+ 1 4900 5150
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+$EndComp
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+$Comp
+L power:GND #PWR014
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+F 0 "#PWR014" H 4900 5150 50 0001 C CNN
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+F 2 "" H 4900 5400 50 0001 C CNN
+F 3 "" H 4900 5400 50 0001 C CNN
+ 1 4900 5400
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+L Device:C C7
+U 1 1 5F10B72F
+P 5250 4800
+F 0 "C7" H 5365 4846 50 0000 L CNN
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+F 2 "" H 5288 4650 50 0001 C CNN
+F 3 "~" H 5250 4800 50 0001 C CNN
+ 1 5250 4800
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+$EndComp
+Wire Wire Line
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+$Comp
+L power:GND #PWR017
+U 1 1 5F10B73B
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+F 2 "" H 5250 5050 50 0001 C CNN
+F 3 "" H 5250 5050 50 0001 C CNN
+ 1 5250 5050
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2050 4000
+Connection ~ 3450 5600
+$EndSCHEMATC
--- /dev/null
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 6 6
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Connector:USB_A J1
+U 1 1 5F0CC9AF
+P 2750 1650
+F 0 "J1" H 2807 2117 50 0000 C CNN
+F 1 "USB_A" H 2807 2026 50 0000 C CNN
+F 2 "" H 2900 1600 50 0001 C CNN
+F 3 " ~" H 2900 1600 50 0001 C CNN
+ 1 2750 1650
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3050 1650 3050 1750
+$Comp
+L Connector:USB_A J4
+U 1 1 5F0CE176
+P 3550 1650
+F 0 "J4" H 3607 2117 50 0000 C CNN
+F 1 "USB_A" H 3607 2026 50 0000 C CNN
+F 2 "" H 3700 1600 50 0001 C CNN
+F 3 " ~" H 3700 1600 50 0001 C CNN
+ 1 3550 1650
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3850 1650 3850 1750
+Wire Wire Line
+ 3050 1450 3150 1450
+Wire Wire Line
+ 3150 1450 3150 950
+Wire Wire Line
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+Wire Wire Line
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+F 0 "#PWR03" H 2750 1850 50 0001 C CNN
+F 1 "GND" H 2755 1927 50 0000 C CNN
+F 2 "" H 2750 2100 50 0001 C CNN
+F 3 "" H 2750 2100 50 0001 C CNN
+ 1 2750 2100
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:GND #PWR06
+U 1 1 5F0CF8C4
+P 3550 2100
+F 0 "#PWR06" H 3550 1850 50 0001 C CNN
+F 1 "GND" H 3555 1927 50 0000 C CNN
+F 2 "" H 3550 2100 50 0001 C CNN
+F 3 "" H 3550 2100 50 0001 C CNN
+ 1 3550 2100
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Text HLabel 1100 950 0 50 Input ~ 0
+5V
+Wire Wire Line
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+Connection ~ 3150 950
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+13V
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 3300 1100
+Connection ~ 3850 1650
+Text HLabel 1100 1250 0 50 Input ~ 0
+GND
+Text HLabel 1350 4400 0 50 BiDi ~ 0
+Battery
+$Comp
+L power:GND #PWR02
+U 1 1 5F0D429A
+P 1200 1300
+F 0 "#PWR02" H 1200 1050 50 0001 C CNN
+F 1 "GND" H 1205 1127 50 0000 C CNN
+F 2 "" H 1200 1300 50 0001 C CNN
+F 3 "" H 1200 1300 50 0001 C CNN
+ 1 1200 1300
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 1200 1300 1200 1250
+Wire Wire Line
+ 1200 1250 1100 1250
+$Comp
+L Connector:USB_A J7
+U 1 1 5F0D4E49
+P 4350 1650
+F 0 "J7" H 4407 2117 50 0000 C CNN
+F 1 "USB_A" H 4407 2026 50 0000 C CNN
+F 2 "" H 4500 1600 50 0001 C CNN
+F 3 " ~" H 4500 1600 50 0001 C CNN
+ 1 4350 1650
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+Wire Wire Line
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+Wire Wire Line
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+L power:GND #PWR09
+U 1 1 5F0D4E57
+P 4350 2100
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+F 1 "GND" H 4355 1927 50 0000 C CNN
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+F 3 "" H 4350 2100 50 0001 C CNN
+ 1 4350 2100
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 4100 1100
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+ 3450 2050 3450 2400
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 3450 2400
+$Comp
+L Device:C C2
+U 1 1 5F0D832F
+P 4900 1950
+F 0 "C2" H 5015 1996 50 0000 L CNN
+F 1 "C" H 5015 1905 50 0000 L CNN
+F 2 "" H 4938 1800 50 0001 C CNN
+F 3 "~" H 4900 1950 50 0001 C CNN
+ 1 4900 1950
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+$EndComp
+Wire Wire Line
+ 4900 1800 4900 1650
+Connection ~ 4900 1650
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+L power:GND #PWR012
+U 1 1 5F0D8E3C
+P 4900 2200
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+F 3 "" H 4900 2200 50 0001 C CNN
+ 1 4900 2200
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
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+$Comp
+L Device:C C5
+U 1 1 5F0D95F5
+P 5250 1600
+F 0 "C5" H 5365 1646 50 0000 L CNN
+F 1 "C" H 5365 1555 50 0000 L CNN
+F 2 "" H 5288 1450 50 0001 C CNN
+F 3 "~" H 5250 1600 50 0001 C CNN
+ 1 5250 1600
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+Wire Wire Line
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+Connection ~ 4750 1450
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+L power:GND #PWR015
+U 1 1 5F0D9E27
+P 5250 1850
+F 0 "#PWR015" H 5250 1600 50 0001 C CNN
+F 1 "GND" H 5255 1677 50 0000 C CNN
+F 2 "" H 5250 1850 50 0001 C CNN
+F 3 "" H 5250 1850 50 0001 C CNN
+ 1 5250 1850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 5250 1850 5250 1750
+$Comp
+L Connector:USB_A J2
+U 1 1 5F0DE4EE
+P 2750 3250
+F 0 "J2" H 2807 3717 50 0000 C CNN
+F 1 "USB_A" H 2807 3626 50 0000 C CNN
+F 2 "" H 2900 3200 50 0001 C CNN
+F 3 " ~" H 2900 3200 50 0001 C CNN
+ 1 2750 3250
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3050 3250 3050 3350
+$Comp
+L Connector:USB_A J5
+U 1 1 5F0DE4F9
+P 3550 3250
+F 0 "J5" H 3607 3717 50 0000 C CNN
+F 1 "USB_A" H 3607 3626 50 0000 C CNN
+F 2 "" H 3700 3200 50 0001 C CNN
+F 3 " ~" H 3700 3200 50 0001 C CNN
+ 1 3550 3250
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3850 3250 3850 3350
+Wire Wire Line
+ 3050 3050 3150 3050
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+Wire Wire Line
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+$Comp
+L power:GND #PWR04
+U 1 1 5F0DE509
+P 2750 3700
+F 0 "#PWR04" H 2750 3450 50 0001 C CNN
+F 1 "GND" H 2755 3527 50 0000 C CNN
+F 2 "" H 2750 3700 50 0001 C CNN
+F 3 "" H 2750 3700 50 0001 C CNN
+ 1 2750 3700
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:GND #PWR07
+U 1 1 5F0DE513
+P 3550 3700
+F 0 "#PWR07" H 3550 3450 50 0001 C CNN
+F 1 "GND" H 3555 3527 50 0000 C CNN
+F 2 "" H 3550 3700 50 0001 C CNN
+F 3 "" H 3550 3700 50 0001 C CNN
+ 1 3550 3700
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 2750 3700 2750 3650
+Wire Wire Line
+ 3550 3700 3550 3650
+Wire Wire Line
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+Wire Wire Line
+ 3300 3250 3050 3250
+Connection ~ 3050 3250
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+ 4100 3250 3850 3250
+Connection ~ 3850 3250
+$Comp
+L Connector:USB_A J8
+U 1 1 5F0DE52A
+P 4350 3250
+F 0 "J8" H 4407 3717 50 0000 C CNN
+F 1 "USB_A" H 4407 3626 50 0000 C CNN
+F 2 "" H 4500 3200 50 0001 C CNN
+F 3 " ~" H 4500 3200 50 0001 C CNN
+ 1 4350 3250
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4650 3250 4650 3350
+Wire Wire Line
+ 3950 2550 4750 2550
+Wire Wire Line
+ 4750 2550 4750 3050
+Wire Wire Line
+ 4750 3050 4650 3050
+$Comp
+L power:GND #PWR010
+U 1 1 5F0DE538
+P 4350 3700
+F 0 "#PWR010" H 4350 3450 50 0001 C CNN
+F 1 "GND" H 4355 3527 50 0000 C CNN
+F 2 "" H 4350 3700 50 0001 C CNN
+F 3 "" H 4350 3700 50 0001 C CNN
+ 1 4350 3700
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4350 3700 4350 3650
+Wire Wire Line
+ 4100 2700 4900 2700
+Wire Wire Line
+ 4900 2700 4900 3250
+Wire Wire Line
+ 4900 3250 4650 3250
+Connection ~ 4650 3250
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+Wire Wire Line
+ 2650 3650 2650 4000
+Wire Wire Line
+ 3450 3650 3450 4000
+Wire Wire Line
+ 3450 4000 4250 4000
+Wire Wire Line
+ 4250 4000 4250 3650
+Connection ~ 3450 4000
+$Comp
+L Device:C C3
+U 1 1 5F0DE54F
+P 4900 3550
+F 0 "C3" H 5015 3596 50 0000 L CNN
+F 1 "C" H 5015 3505 50 0000 L CNN
+F 2 "" H 4938 3400 50 0001 C CNN
+F 3 "~" H 4900 3550 50 0001 C CNN
+ 1 4900 3550
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4900 3400 4900 3250
+Connection ~ 4900 3250
+$Comp
+L power:GND #PWR013
+U 1 1 5F0DE55B
+P 4900 3800
+F 0 "#PWR013" H 4900 3550 50 0001 C CNN
+F 1 "GND" H 4905 3627 50 0000 C CNN
+F 2 "" H 4900 3800 50 0001 C CNN
+F 3 "" H 4900 3800 50 0001 C CNN
+ 1 4900 3800
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4900 3800 4900 3700
+$Comp
+L Device:C C6
+U 1 1 5F0DE566
+P 5250 3200
+F 0 "C6" H 5365 3246 50 0000 L CNN
+F 1 "C" H 5365 3155 50 0000 L CNN
+F 2 "" H 5288 3050 50 0001 C CNN
+F 3 "~" H 5250 3200 50 0001 C CNN
+ 1 5250 3200
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 5250 3050 4750 3050
+Connection ~ 4750 3050
+$Comp
+L power:GND #PWR016
+U 1 1 5F0DE572
+P 5250 3450
+F 0 "#PWR016" H 5250 3200 50 0001 C CNN
+F 1 "GND" H 5255 3277 50 0000 C CNN
+F 2 "" H 5250 3450 50 0001 C CNN
+F 3 "" H 5250 3450 50 0001 C CNN
+ 1 5250 3450
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 5250 3450 5250 3350
+Wire Wire Line
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+Wire Wire Line
+ 2350 2550 2350 950
+Connection ~ 3150 2550
+Connection ~ 2350 950
+Wire Wire Line
+ 2350 950 3150 950
+Wire Wire Line
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+Wire Wire Line
+ 2200 2700 2200 1100
+Connection ~ 3300 2700
+Connection ~ 2200 1100
+Wire Wire Line
+ 2200 1100 3300 1100
+$Comp
+L Connector:USB_A J3
+U 1 1 5F10B6BB
+P 2750 4850
+F 0 "J3" H 2807 5317 50 0000 C CNN
+F 1 "USB_A" H 2807 5226 50 0000 C CNN
+F 2 "" H 2900 4800 50 0001 C CNN
+F 3 " ~" H 2900 4800 50 0001 C CNN
+ 1 2750 4850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3050 4850 3050 4950
+$Comp
+L Connector:USB_A J6
+U 1 1 5F10B6C6
+P 3550 4850
+F 0 "J6" H 3607 5317 50 0000 C CNN
+F 1 "USB_A" H 3607 5226 50 0000 C CNN
+F 2 "" H 3700 4800 50 0001 C CNN
+F 3 " ~" H 3700 4800 50 0001 C CNN
+ 1 3550 4850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 3850 4850 3850 4950
+Wire Wire Line
+ 3950 4150 3950 4650
+Wire Wire Line
+ 3950 4650 3850 4650
+$Comp
+L power:GND #PWR05
+U 1 1 5F10B6D6
+P 2750 5300
+F 0 "#PWR05" H 2750 5050 50 0001 C CNN
+F 1 "GND" H 2755 5127 50 0000 C CNN
+F 2 "" H 2750 5300 50 0001 C CNN
+F 3 "" H 2750 5300 50 0001 C CNN
+ 1 2750 5300
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:GND #PWR08
+U 1 1 5F10B6E0
+P 3550 5300
+F 0 "#PWR08" H 3550 5050 50 0001 C CNN
+F 1 "GND" H 3555 5127 50 0000 C CNN
+F 2 "" H 3550 5300 50 0001 C CNN
+F 3 "" H 3550 5300 50 0001 C CNN
+ 1 3550 5300
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 2750 5300 2750 5250
+Wire Wire Line
+ 3550 5300 3550 5250
+Wire Wire Line
+ 4100 4300 4100 4850
+Wire Wire Line
+ 4100 4850 3850 4850
+Connection ~ 3850 4850
+$Comp
+L Connector:USB_A J9
+U 1 1 5F10B6F3
+P 4350 4850
+F 0 "J9" H 4407 5317 50 0000 C CNN
+F 1 "USB_A" H 4407 5226 50 0000 C CNN
+F 2 "" H 4500 4800 50 0001 C CNN
+F 3 " ~" H 4500 4800 50 0001 C CNN
+ 1 4350 4850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4650 4850 4650 4950
+Wire Wire Line
+ 4750 4150 4750 4650
+Wire Wire Line
+ 4750 4650 4650 4650
+$Comp
+L power:GND #PWR011
+U 1 1 5F10B701
+P 4350 5300
+F 0 "#PWR011" H 4350 5050 50 0001 C CNN
+F 1 "GND" H 4355 5127 50 0000 C CNN
+F 2 "" H 4350 5300 50 0001 C CNN
+F 3 "" H 4350 5300 50 0001 C CNN
+ 1 4350 5300
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4350 5300 4350 5250
+Wire Wire Line
+ 4100 4300 4900 4300
+Wire Wire Line
+ 4900 4300 4900 4850
+Wire Wire Line
+ 4900 4850 4650 4850
+Connection ~ 4650 4850
+Connection ~ 3950 4150
+Connection ~ 4100 4300
+Wire Wire Line
+ 3450 5250 3450 5600
+Wire Wire Line
+ 3450 5600 4250 5600
+Wire Wire Line
+ 4250 5600 4250 5250
+$Comp
+L Device:C C4
+U 1 1 5F10B718
+P 4900 5150
+F 0 "C4" H 5015 5196 50 0000 L CNN
+F 1 "C" H 5015 5105 50 0000 L CNN
+F 2 "" H 4938 5000 50 0001 C CNN
+F 3 "~" H 4900 5150 50 0001 C CNN
+ 1 4900 5150
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4900 5000 4900 4850
+Connection ~ 4900 4850
+$Comp
+L power:GND #PWR014
+U 1 1 5F10B724
+P 4900 5400
+F 0 "#PWR014" H 4900 5150 50 0001 C CNN
+F 1 "GND" H 4905 5227 50 0000 C CNN
+F 2 "" H 4900 5400 50 0001 C CNN
+F 3 "" H 4900 5400 50 0001 C CNN
+ 1 4900 5400
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4900 5400 4900 5300
+$Comp
+L Device:C C7
+U 1 1 5F10B72F
+P 5250 4800
+F 0 "C7" H 5365 4846 50 0000 L CNN
+F 1 "C" H 5365 4755 50 0000 L CNN
+F 2 "" H 5288 4650 50 0001 C CNN
+F 3 "~" H 5250 4800 50 0001 C CNN
+ 1 5250 4800
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 5250 4650 4750 4650
+Connection ~ 4750 4650
+$Comp
+L power:GND #PWR017
+U 1 1 5F10B73B
+P 5250 5050
+F 0 "#PWR017" H 5250 4800 50 0001 C CNN
+F 1 "GND" H 5255 4877 50 0000 C CNN
+F 2 "" H 5250 5050 50 0001 C CNN
+F 3 "" H 5250 5050 50 0001 C CNN
+ 1 5250 5050
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 5250 5050 5250 4950
+Wire Wire Line
+ 2350 4150 2350 2550
+Wire Wire Line
+ 2200 4300 2200 2700
+Connection ~ 2200 2700
+Connection ~ 2350 2550
+Wire Wire Line
+ 2350 4150 3950 4150
+Wire Wire Line
+ 3950 4150 4750 4150
+Wire Wire Line
+ 2200 4300 4100 4300
+Wire Wire Line
+ 1350 4400 3200 4400
+Wire Wire Line
+ 3200 4400 3200 4850
+Wire Wire Line
+ 3200 4850 3050 4850
+Connection ~ 3050 4850
+Wire Wire Line
+ 2650 2400 2050 2400
+Wire Wire Line
+ 2050 2400 2050 4000
+Wire Wire Line
+ 2050 4000 2650 4000
+Connection ~ 2650 2400
+Connection ~ 2650 4000
+Wire Wire Line
+ 2650 4000 3450 4000
+Wire Wire Line
+ 2050 4000 2050 5600
+Wire Wire Line
+ 2050 5600 3450 5600
+Connection ~ 2050 4000
+Connection ~ 3450 5600
+$EndSCHEMATC
--- /dev/null
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 3 6
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Regulator_Linear:LM317_3PinPackage U1
+U 1 1 5F0BD4FF
+P 4900 3200
+AR Path="/5F0BCD3F/5F0BD4FF" Ref="U1" Part="1"
+AR Path="/5F0CA509/5F0BD4FF" Ref="U2" Part="1"
+F 0 "U1" H 4900 3442 50 0000 C CNN
+F 1 "LM317_3PinPackage" H 4900 3351 50 0000 C CNN
+F 2 "" H 4900 3450 50 0001 C CIN
+F 3 "http://www.ti.com/lit/ds/symlink/lm317.pdf" H 4900 3200 50 0001 C CNN
+ 1 4900 3200
+ 1 0 0 -1
+$EndComp
+Text HLabel 4500 3200 0 50 Input ~ 0
+V_in
+Text HLabel 5800 3200 2 50 Output ~ 0
+V_out
+Wire Wire Line
+ 4500 3200 4600 3200
+$Comp
+L Device:R R1
+U 1 1 5F0BDA63
+P 5500 3200
+AR Path="/5F0BCD3F/5F0BDA63" Ref="R1" Part="1"
+AR Path="/5F0CA509/5F0BDA63" Ref="R2" Part="1"
+F 0 "R1" V 5293 3200 50 0000 C CNN
+F 1 "4.7" V 5384 3200 50 0000 C CNN
+F 2 "" V 5430 3200 50 0001 C CNN
+F 3 "~" H 5500 3200 50 0001 C CNN
+ 1 5500 3200
+ 0 1 1 0
+$EndComp
+Wire Wire Line
+ 5200 3200 5350 3200
+Wire Wire Line
+ 5650 3200 5700 3200
+Wire Wire Line
+ 4900 3500 5700 3500
+Wire Wire Line
+ 5700 3500 5700 3200
+Connection ~ 5700 3200
+Wire Wire Line
+ 5700 3200 5800 3200
+$EndSCHEMATC
--- /dev/null
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 3 6
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L Regulator_Linear:LM317_3PinPackage U1
+U 1 1 5F0BD4FF
+P 4900 3200
+AR Path="/5F0BCD3F/5F0BD4FF" Ref="U1" Part="1"
+AR Path="/5F0CA509/5F0BD4FF" Ref="U2" Part="1"
+F 0 "U1" H 4900 3442 50 0000 C CNN
+F 1 "LM317_3PinPackage" H 4900 3351 50 0000 C CNN
+F 2 "" H 4900 3450 50 0001 C CIN
+F 3 "http://www.ti.com/lit/ds/symlink/lm317.pdf" H 4900 3200 50 0001 C CNN
+ 1 4900 3200
+ 1 0 0 -1
+$EndComp
+Text HLabel 4500 3200 0 50 Input ~ 0
+V_in
+Text HLabel 5800 3200 2 50 Output ~ 0
+V_out
+Wire Wire Line
+ 4500 3200 4600 3200
+$Comp
+L Device:R R1
+U 1 1 5F0BDA63
+P 5500 3200
+AR Path="/5F0BCD3F/5F0BDA63" Ref="R1" Part="1"
+AR Path="/5F0CA509/5F0BDA63" Ref="R2" Part="1"
+F 0 "R1" V 5293 3200 50 0000 C CNN
+F 1 "4.7" V 5384 3200 50 0000 C CNN
+F 2 "" V 5430 3200 50 0001 C CNN
+F 3 "~" H 5500 3200 50 0001 C CNN
+ 1 5500 3200
+ 0 1 1 0
+$EndComp
+Wire Wire Line
+ 5200 3200 5350 3200
+Wire Wire Line
+ 5650 3200 5700 3200
+Wire Wire Line
+ 4900 3500 5700 3500
+Wire Wire Line
+ 5700 3500 5700 3200
+Connection ~ 5700 3200
+Wire Wire Line
+ 5700 3200 5800 3200
+$EndSCHEMATC
+++ /dev/null
-EESchema-LIBRARY Version 2.4
-#encoding utf-8
-#
-# Connector_Conn_Coaxial
-#
-DEF Connector_Conn_Coaxial J 0 40 Y N 1 F N
-F0 "J" 10 120 50 H V C CNN
-F1 "Connector_Conn_Coaxial" 115 0 50 V V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- *BNC*
- *SMA*
- *SMB*
- *SMC*
- *Cinch*
-$ENDFPLIST
-DRAW
-A -2 0 71 1636 0 0 1 10 N -70 20 70 0
-A -1 0 71 0 -1638 0 1 10 N 70 0 -70 -20
-C 0 0 20 0 1 8 N
-P 2 0 1 0 -100 0 -20 0 N
-P 2 0 1 0 0 -100 0 -70 N
-X In 1 -200 0 100 R 50 50 1 1 P
-X Ext 2 0 -200 100 U 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_C
-#
-DEF Device_C C 0 10 N Y 1 F N
-F0 "C" 25 100 50 H V L CNN
-F1 "Device_C" 25 -100 50 H V L CNN
-F2 "" 38 -150 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- C_*
-$ENDFPLIST
-DRAW
-P 2 0 1 20 -80 -30 80 -30 N
-P 2 0 1 20 -80 30 80 30 N
-X ~ 1 0 150 110 D 50 50 1 1 P
-X ~ 2 0 -150 110 U 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_LED
-#
-DEF Device_LED D 0 40 N N 1 F N
-F0 "D" 0 100 50 H V C CNN
-F1 "Device_LED" 0 -100 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- LED*
- LED_SMD:*
- LED_THT:*
-$ENDFPLIST
-DRAW
-P 2 0 1 8 -50 -50 -50 50 N
-P 2 0 1 0 -50 0 50 0 N
-P 4 0 1 8 50 -50 50 50 -50 0 50 -50 N
-P 5 0 1 0 -120 -30 -180 -90 -150 -90 -180 -90 -180 -60 N
-P 5 0 1 0 -70 -30 -130 -90 -100 -90 -130 -90 -130 -60 N
-X K 1 -150 0 100 R 50 50 1 1 P
-X A 2 150 0 100 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_R
-#
-DEF Device_R R 0 0 N Y 1 F N
-F0 "R" 80 0 50 V V C CNN
-F1 "Device_R" 0 0 50 V V C CNN
-F2 "" -70 0 50 V I C CNN
-F3 "" 0 0 50 H I C CNN
-$FPLIST
- R_*
-$ENDFPLIST
-DRAW
-S -40 -100 40 100 0 1 10 N
-X ~ 1 0 150 50 D 50 50 1 1 P
-X ~ 2 0 -150 50 U 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Device_Voltmeter_DC
-#
-DEF Device_Voltmeter_DC MES 0 1 N N 1 F N
-F0 "MES" -130 40 50 H V R CNN
-F1 "Device_Voltmeter_DC" -130 -30 50 H V R CNN
-F2 "" 0 100 50 V I C CNN
-F3 "" 0 100 50 V I C CNN
-DRAW
-C 0 0 100 0 1 10 N
-T 0 0 0 100 0 0 0 V Normal 0 C C
-P 2 0 0 0 -125 -125 -75 -75 N
-P 2 0 0 0 75 75 125 125 N
-P 3 0 0 0 75 125 125 125 125 75 N
-P 2 0 1 0 10 150 30 150 N
-P 2 0 1 0 20 160 20 140 N
-X - 1 0 -200 100 U 50 50 1 1 P
-X + 2 0 200 100 D 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# Switch_SW_DPST
-#
-DEF Switch_SW_DPST SW 0 0 Y N 1 F N
-F0 "SW" 0 200 50 H V C CNN
-F1 "Switch_SW_DPST" 0 -200 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-DRAW
-C -80 -100 20 0 0 0 N
-C -80 100 20 0 0 0 N
-C 80 -100 20 0 0 0 N
-C 80 100 20 0 0 0 N
-P 2 0 0 0 -60 -90 50 -40 N
-P 2 0 0 0 -60 110 50 160 N
-P 2 0 0 0 0 -50 0 -25 N
-P 2 0 0 0 0 0 0 25 N
-P 2 0 0 0 0 50 0 75 N
-P 2 0 0 0 0 100 0 125 N
-X 1 1 -200 -100 100 R 50 50 1 1 P
-X 2 2 200 -100 100 L 50 50 1 1 P
-X 3 3 -200 100 100 R 50 50 1 1 P
-X 4 4 200 100 100 L 50 50 1 1 P
-ENDDRAW
-ENDDEF
-#
-# power_GND
-#
-DEF power_GND #PWR 0 0 Y Y 1 F P
-F0 "#PWR" 0 -250 50 H I C CNN
-F1 "power_GND" 0 -150 50 H V C CNN
-F2 "" 0 0 50 H I C CNN
-F3 "" 0 0 50 H I C CNN
-DRAW
-P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
-X GND 1 0 0 0 D 50 50 1 1 W N
-ENDDRAW
-ENDDEF
-#
-#End Library
+++ /dev/null
-(kicad_pcb (version 4) (host kicad "dummy file") )
+++ /dev/null
-update=22/05/2015 07:44:53
-version=1
-last_client=kicad
-[general]
-version=1
-RootSch=
-BoardNm=
-[pcbnew]
-version=1
-LastNetListRead=
-UseCmpFile=1
-PadDrill=0.600000000000
-PadDrillOvalY=0.600000000000
-PadSizeH=1.500000000000
-PadSizeV=1.500000000000
-PcbTextSizeV=1.500000000000
-PcbTextSizeH=1.500000000000
-PcbTextThickness=0.300000000000
-ModuleTextSizeV=1.000000000000
-ModuleTextSizeH=1.000000000000
-ModuleTextSizeThickness=0.150000000000
-SolderMaskClearance=0.000000000000
-SolderMaskMinWidth=0.000000000000
-DrawSegmentWidth=0.200000000000
-BoardOutlineThickness=0.100000000000
-ModuleOutlineThickness=0.150000000000
-[cvpcb]
-version=1
-NetIExt=net
-[eeschema]
-version=1
-LibDir=
-[eeschema/libraries]
+++ /dev/null
-EESchema Schematic File Version 4
-EELAYER 30 0
-EELAYER END
-$Descr A4 11693 8268
-encoding utf-8
-Sheet 1 2
-Title ""
-Date ""
-Rev ""
-Comp ""
-Comment1 ""
-Comment2 ""
-Comment3 ""
-Comment4 ""
-$EndDescr
-$Comp
-L Connector:Conn_Coaxial J1
-U 1 1 5E52AB1D
-P 2850 2550
-F 0 "J1" H 2778 2788 50 0000 C CNN
-F 1 "PWR in 3V" H 2778 2697 50 0000 C CNN
-F 2 "" H 2850 2550 50 0001 C CNN
-F 3 " ~" H 2850 2550 50 0001 C CNN
- 1 2850 2550
- -1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J2
-U 1 1 5E52AD78
-P 4000 3800
-F 0 "J2" H 3928 4038 50 0000 C CNN
-F 1 "battery" H 3928 3947 50 0000 C CNN
-F 2 "" H 4000 3800 50 0001 C CNN
-F 3 " ~" H 4000 3800 50 0001 C CNN
- 1 4000 3800
- -1 0 0 -1
-$EndComp
-$Comp
-L Device:R R2
-U 1 1 5E52D0B8
-P 4550 4500
-F 0 "R2" H 4620 4546 50 0000 L CNN
-F 1 "10K" H 4620 4455 50 0000 L CNN
-F 2 "" V 4480 4500 50 0001 C CNN
-F 3 "~" H 4550 4500 50 0001 C CNN
- 1 4550 4500
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:LED D2
-U 1 1 5E52D41A
-P 4550 4000
-F 0 "D2" V 4589 3883 50 0000 R CNN
-F 1 "battery connected indicator" V 4498 3883 50 0000 R CNN
-F 2 "" H 4550 4000 50 0001 C CNN
-F 3 "~" H 4550 4000 50 0001 C CNN
- 1 4550 4000
- 0 -1 -1 0
-$EndComp
-Wire Wire Line
- 4200 3800 4550 3800
-Wire Wire Line
- 4550 3800 4550 3850
-Wire Wire Line
- 4550 4150 4550 4350
-$Comp
-L power:GND #PWR04
-U 1 1 5E52DB57
-P 4550 4750
-F 0 "#PWR04" H 4550 4500 50 0001 C CNN
-F 1 "GND" H 4555 4577 50 0000 C CNN
-F 2 "" H 4550 4750 50 0001 C CNN
-F 3 "" H 4550 4750 50 0001 C CNN
- 1 4550 4750
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR02
-U 1 1 5E52DDF5
-P 4000 4200
-F 0 "#PWR02" H 4000 3950 50 0001 C CNN
-F 1 "GND" H 4005 4027 50 0000 C CNN
-F 2 "" H 4000 4200 50 0001 C CNN
-F 3 "" H 4000 4200 50 0001 C CNN
- 1 4000 4200
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 4000 4000 4000 4200
-Wire Wire Line
- 4550 4750 4550 4650
-$Comp
-L power:GND #PWR01
-U 1 1 5E52F76E
-P 2850 2900
-F 0 "#PWR01" H 2850 2650 50 0001 C CNN
-F 1 "GND" H 2855 2727 50 0000 C CNN
-F 2 "" H 2850 2900 50 0001 C CNN
-F 3 "" H 2850 2900 50 0001 C CNN
- 1 2850 2900
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 2850 2900 2850 2750
-$Comp
-L Device:R R1
-U 1 1 5E530570
-P 4550 3250
-F 0 "R1" H 4620 3296 50 0000 L CNN
-F 1 "10K" H 4620 3205 50 0000 L CNN
-F 2 "" V 4480 3250 50 0001 C CNN
-F 3 "~" H 4550 3250 50 0001 C CNN
- 1 4550 3250
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:LED D1
-U 1 1 5E53057A
-P 4550 2750
-F 0 "D1" V 4589 2632 50 0000 R CNN
-F 1 "Vin indicator" V 4498 2632 50 0000 R CNN
-F 2 "" H 4550 2750 50 0001 C CNN
-F 3 "~" H 4550 2750 50 0001 C CNN
- 1 4550 2750
- 0 -1 -1 0
-$EndComp
-Wire Wire Line
- 4200 2550 4550 2550
-Wire Wire Line
- 4550 2550 4550 2600
-Wire Wire Line
- 4550 2900 4550 3100
-$Comp
-L power:GND #PWR03
-U 1 1 5E530587
-P 4550 3500
-F 0 "#PWR03" H 4550 3250 50 0001 C CNN
-F 1 "GND" H 4555 3327 50 0000 C CNN
-F 2 "" H 4550 3500 50 0001 C CNN
-F 3 "" H 4550 3500 50 0001 C CNN
- 1 4550 3500
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 4550 3500 4550 3400
-$Sheet
-S 3400 2450 800 450
-U 5E537CE2
-F0 "Voltage step-up" 50
-F1 "voltage step up.sch" 50
-F2 "Vin" I L 3400 2550 50
-F3 "Vout_14.4V" O R 4200 2550 50
-$EndSheet
-Wire Wire Line
- 3050 2550 3400 2550
-$Comp
-L Switch:SW_DPST SW1
-U 1 1 5E53B9C1
-P 5500 3550
-F 0 "SW1" H 5500 3875 50 0000 C CNN
-F 1 "On/Off" H 5500 3784 50 0000 C CNN
-F 2 "" H 5500 3550 50 0001 C CNN
-F 3 "~" H 5500 3550 50 0001 C CNN
- 1 5500 3550
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 5300 3450 5200 3450
-Wire Wire Line
- 5200 3450 5200 2550
-Wire Wire Line
- 5200 2550 4550 2550
-Connection ~ 4550 2550
-Wire Wire Line
- 5300 3650 4950 3650
-Wire Wire Line
- 4950 3650 4950 3800
-Wire Wire Line
- 4950 3800 4550 3800
-Connection ~ 4550 3800
-Wire Wire Line
- 5700 3650 5700 3450
-$Comp
-L Device:Voltmeter_DC MES1
-U 1 1 5E53D4AB
-P 6050 3950
-F 0 "MES1" H 6203 3996 50 0000 L CNN
-F 1 "Voltmeter_DC" H 6203 3905 50 0000 L CNN
-F 2 "" V 6050 4050 50 0001 C CNN
-F 3 "~" V 6050 4050 50 0001 C CNN
- 1 6050 3950
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C1
-U 1 1 5E53DE9C
-P 6850 3950
-F 0 "C1" H 6965 3996 50 0000 L CNN
-F 1 "C" H 6965 3905 50 0000 L CNN
-F 2 "" H 6888 3800 50 0001 C CNN
-F 3 "~" H 6850 3950 50 0001 C CNN
- 1 6850 3950
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C2
-U 1 1 5E53E204
-P 7250 3950
-F 0 "C2" H 7365 3996 50 0000 L CNN
-F 1 "C" H 7365 3905 50 0000 L CNN
-F 2 "" H 7288 3800 50 0001 C CNN
-F 3 "~" H 7250 3950 50 0001 C CNN
- 1 7250 3950
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 6050 3750 6050 3650
-Wire Wire Line
- 6050 3650 5700 3650
-Connection ~ 5700 3650
-Wire Wire Line
- 6050 3650 6850 3650
-Wire Wire Line
- 6850 3650 6850 3800
-Connection ~ 6050 3650
-Wire Wire Line
- 7250 3800 7250 3650
-Wire Wire Line
- 7250 3650 6850 3650
-Connection ~ 6850 3650
-Wire Wire Line
- 7250 4100 7250 4350
-Wire Wire Line
- 7250 4350 6850 4350
-Wire Wire Line
- 6850 4350 6850 4100
-Wire Wire Line
- 6050 4150 6050 4350
-Wire Wire Line
- 6050 4350 6850 4350
-Connection ~ 6850 4350
-$Comp
-L power:GND #PWR05
-U 1 1 5E53FA0C
-P 6850 4600
-F 0 "#PWR05" H 6850 4350 50 0001 C CNN
-F 1 "GND" H 6855 4427 50 0000 C CNN
-F 2 "" H 6850 4600 50 0001 C CNN
-F 3 "" H 6850 4600 50 0001 C CNN
- 1 6850 4600
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 6850 4600 6850 4350
-$Comp
-L Connector:Conn_Coaxial J6
-U 1 1 5E540AF4
-P 8050 4500
-F 0 "J6" H 8150 4475 50 0000 L CNN
-F 1 "Vout" H 8150 4384 50 0000 L CNN
-F 2 "" H 8050 4500 50 0001 C CNN
-F 3 " ~" H 8050 4500 50 0001 C CNN
- 1 8050 4500
- 1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J10
-U 1 1 5E541324
-P 8700 4500
-F 0 "J10" H 8628 4738 50 0000 C CNN
-F 1 "Vout" H 8628 4647 50 0000 C CNN
-F 2 "" H 8700 4500 50 0001 C CNN
-F 3 " ~" H 8700 4500 50 0001 C CNN
- 1 8700 4500
- -1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J5
-U 1 1 5E542FDB
-P 8050 4050
-F 0 "J5" H 8150 4025 50 0000 L CNN
-F 1 "Vout" H 8150 3934 50 0000 L CNN
-F 2 "" H 8050 4050 50 0001 C CNN
-F 3 " ~" H 8050 4050 50 0001 C CNN
- 1 8050 4050
- 1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J9
-U 1 1 5E542FE5
-P 8700 4050
-F 0 "J9" H 8628 4288 50 0000 C CNN
-F 1 "Vout" H 8628 4197 50 0000 C CNN
-F 2 "" H 8700 4050 50 0001 C CNN
-F 3 " ~" H 8700 4050 50 0001 C CNN
- 1 8700 4050
- -1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J4
-U 1 1 5E54657C
-P 8050 3650
-F 0 "J4" H 8150 3625 50 0000 L CNN
-F 1 "Vout" H 8150 3534 50 0000 L CNN
-F 2 "" H 8050 3650 50 0001 C CNN
-F 3 " ~" H 8050 3650 50 0001 C CNN
- 1 8050 3650
- 1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J8
-U 1 1 5E546586
-P 8700 3650
-F 0 "J8" H 8628 3888 50 0000 C CNN
-F 1 "Vout" H 8628 3797 50 0000 C CNN
-F 2 "" H 8700 3650 50 0001 C CNN
-F 3 " ~" H 8700 3650 50 0001 C CNN
- 1 8700 3650
- -1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J3
-U 1 1 5E546590
-P 8050 3200
-F 0 "J3" H 8150 3175 50 0000 L CNN
-F 1 "Vout" H 8150 3084 50 0000 L CNN
-F 2 "" H 8050 3200 50 0001 C CNN
-F 3 " ~" H 8050 3200 50 0001 C CNN
- 1 8050 3200
- 1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J7
-U 1 1 5E54659A
-P 8700 3200
-F 0 "J7" H 8628 3438 50 0000 C CNN
-F 1 "Vout" H 8628 3347 50 0000 C CNN
-F 2 "" H 8700 3200 50 0001 C CNN
-F 3 " ~" H 8700 3200 50 0001 C CNN
- 1 8700 3200
- -1 0 0 -1
-$EndComp
-Wire Wire Line
- 8050 3400 8400 3400
-Wire Wire Line
- 8050 3850 8400 3850
-Wire Wire Line
- 8050 4250 8400 4250
-Wire Wire Line
- 8050 4700 8400 4700
-Wire Wire Line
- 8400 3400 8400 3850
-Connection ~ 8400 3400
-Wire Wire Line
- 8400 3400 8700 3400
-Connection ~ 8400 3850
-Wire Wire Line
- 8400 3850 8700 3850
-Wire Wire Line
- 8400 3850 8400 4250
-Connection ~ 8400 4250
-Wire Wire Line
- 8400 4250 8700 4250
-Wire Wire Line
- 8400 4250 8400 4700
-Connection ~ 8400 4700
-Wire Wire Line
- 8400 4700 8700 4700
-Wire Wire Line
- 7850 3200 7850 3650
-Wire Wire Line
- 7850 3650 7850 4050
-Connection ~ 7850 3650
-Wire Wire Line
- 7850 4050 7850 4500
-Connection ~ 7850 4050
-Wire Wire Line
- 8900 4500 8900 4050
-Wire Wire Line
- 8900 4050 8900 3650
-Connection ~ 8900 4050
-Wire Wire Line
- 8900 3650 8900 3200
-Connection ~ 8900 3650
-$Comp
-L power:GND #PWR06
-U 1 1 5E54EBF8
-P 8400 4850
-F 0 "#PWR06" H 8400 4600 50 0001 C CNN
-F 1 "GND" H 8405 4677 50 0000 C CNN
-F 2 "" H 8400 4850 50 0001 C CNN
-F 3 "" H 8400 4850 50 0001 C CNN
- 1 8400 4850
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 8400 4850 8400 4700
-Wire Wire Line
- 7250 3650 7850 3650
-Connection ~ 7250 3650
-Wire Wire Line
- 8900 3200 8900 2800
-Wire Wire Line
- 8900 2800 7850 2800
-Wire Wire Line
- 7850 2800 7850 3200
-Connection ~ 8900 3200
-Connection ~ 7850 3200
-$EndSCHEMATC
+++ /dev/null
-EESchema Schematic File Version 4
-EELAYER 30 0
-EELAYER END
-$Descr A4 11693 8268
-encoding utf-8
-Sheet 1 2
-Title ""
-Date ""
-Rev ""
-Comp ""
-Comment1 ""
-Comment2 ""
-Comment3 ""
-Comment4 ""
-$EndDescr
-$Comp
-L Connector:Conn_Coaxial J1
-U 1 1 5E52AB1D
-P 2850 2550
-F 0 "J1" H 2778 2788 50 0000 C CNN
-F 1 "PWR in 3V" H 2778 2697 50 0000 C CNN
-F 2 "" H 2850 2550 50 0001 C CNN
-F 3 " ~" H 2850 2550 50 0001 C CNN
- 1 2850 2550
- -1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J2
-U 1 1 5E52AD78
-P 4000 3800
-F 0 "J2" H 3928 4038 50 0000 C CNN
-F 1 "battery" H 3928 3947 50 0000 C CNN
-F 2 "" H 4000 3800 50 0001 C CNN
-F 3 " ~" H 4000 3800 50 0001 C CNN
- 1 4000 3800
- -1 0 0 -1
-$EndComp
-$Comp
-L Device:R R2
-U 1 1 5E52D0B8
-P 4550 4500
-F 0 "R2" H 4620 4546 50 0000 L CNN
-F 1 "10K" H 4620 4455 50 0000 L CNN
-F 2 "" V 4480 4500 50 0001 C CNN
-F 3 "~" H 4550 4500 50 0001 C CNN
- 1 4550 4500
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:LED D2
-U 1 1 5E52D41A
-P 4550 4000
-F 0 "D2" V 4589 3883 50 0000 R CNN
-F 1 "battery connected indicator" V 4498 3883 50 0000 R CNN
-F 2 "" H 4550 4000 50 0001 C CNN
-F 3 "~" H 4550 4000 50 0001 C CNN
- 1 4550 4000
- 0 -1 -1 0
-$EndComp
-Wire Wire Line
- 4200 3800 4550 3800
-Wire Wire Line
- 4550 3800 4550 3850
-Wire Wire Line
- 4550 4150 4550 4350
-$Comp
-L power:GND #PWR04
-U 1 1 5E52DB57
-P 4550 4750
-F 0 "#PWR04" H 4550 4500 50 0001 C CNN
-F 1 "GND" H 4555 4577 50 0000 C CNN
-F 2 "" H 4550 4750 50 0001 C CNN
-F 3 "" H 4550 4750 50 0001 C CNN
- 1 4550 4750
- 1 0 0 -1
-$EndComp
-$Comp
-L power:GND #PWR02
-U 1 1 5E52DDF5
-P 4000 4200
-F 0 "#PWR02" H 4000 3950 50 0001 C CNN
-F 1 "GND" H 4005 4027 50 0000 C CNN
-F 2 "" H 4000 4200 50 0001 C CNN
-F 3 "" H 4000 4200 50 0001 C CNN
- 1 4000 4200
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 4000 4000 4000 4200
-Wire Wire Line
- 4550 4750 4550 4650
-$Comp
-L power:GND #PWR01
-U 1 1 5E52F76E
-P 2850 2900
-F 0 "#PWR01" H 2850 2650 50 0001 C CNN
-F 1 "GND" H 2855 2727 50 0000 C CNN
-F 2 "" H 2850 2900 50 0001 C CNN
-F 3 "" H 2850 2900 50 0001 C CNN
- 1 2850 2900
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 2850 2900 2850 2750
-$Comp
-L Device:R R1
-U 1 1 5E530570
-P 4550 3250
-F 0 "R1" H 4620 3296 50 0000 L CNN
-F 1 "10K" H 4620 3205 50 0000 L CNN
-F 2 "" V 4480 3250 50 0001 C CNN
-F 3 "~" H 4550 3250 50 0001 C CNN
- 1 4550 3250
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:LED D1
-U 1 1 5E53057A
-P 4550 2750
-F 0 "D1" V 4589 2632 50 0000 R CNN
-F 1 "Vin indicator" V 4498 2632 50 0000 R CNN
-F 2 "" H 4550 2750 50 0001 C CNN
-F 3 "~" H 4550 2750 50 0001 C CNN
- 1 4550 2750
- 0 -1 -1 0
-$EndComp
-Wire Wire Line
- 4200 2550 4550 2550
-Wire Wire Line
- 4550 2550 4550 2600
-Wire Wire Line
- 4550 2900 4550 3100
-$Comp
-L power:GND #PWR03
-U 1 1 5E530587
-P 4550 3500
-F 0 "#PWR03" H 4550 3250 50 0001 C CNN
-F 1 "GND" H 4555 3327 50 0000 C CNN
-F 2 "" H 4550 3500 50 0001 C CNN
-F 3 "" H 4550 3500 50 0001 C CNN
- 1 4550 3500
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 4550 3500 4550 3400
-$Sheet
-S 3400 2450 800 450
-U 5E537CE2
-F0 "Voltage step-up" 50
-F1 "voltage step up.sch" 50
-F2 "Vin" I L 3400 2550 50
-F3 "Vout_14.4V" O R 4200 2550 50
-$EndSheet
-Wire Wire Line
- 3050 2550 3400 2550
-$Comp
-L Switch:SW_DPST SW1
-U 1 1 5E53B9C1
-P 5500 3550
-F 0 "SW1" H 5500 3875 50 0000 C CNN
-F 1 "On/Off" H 5500 3784 50 0000 C CNN
-F 2 "" H 5500 3550 50 0001 C CNN
-F 3 "~" H 5500 3550 50 0001 C CNN
- 1 5500 3550
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 5300 3450 5200 3450
-Wire Wire Line
- 5200 3450 5200 2550
-Wire Wire Line
- 5200 2550 4550 2550
-Connection ~ 4550 2550
-Wire Wire Line
- 5300 3650 4950 3650
-Wire Wire Line
- 4950 3650 4950 3800
-Wire Wire Line
- 4950 3800 4550 3800
-Connection ~ 4550 3800
-Wire Wire Line
- 5700 3650 5700 3450
-$Comp
-L Device:Voltmeter_DC MES1
-U 1 1 5E53D4AB
-P 6050 3950
-F 0 "MES1" H 6203 3996 50 0000 L CNN
-F 1 "Voltmeter_DC" H 6203 3905 50 0000 L CNN
-F 2 "" V 6050 4050 50 0001 C CNN
-F 3 "~" V 6050 4050 50 0001 C CNN
- 1 6050 3950
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C1
-U 1 1 5E53DE9C
-P 6850 3950
-F 0 "C1" H 6965 3996 50 0000 L CNN
-F 1 "C" H 6965 3905 50 0000 L CNN
-F 2 "" H 6888 3800 50 0001 C CNN
-F 3 "~" H 6850 3950 50 0001 C CNN
- 1 6850 3950
- 1 0 0 -1
-$EndComp
-$Comp
-L Device:C C2
-U 1 1 5E53E204
-P 7250 3950
-F 0 "C2" H 7365 3996 50 0000 L CNN
-F 1 "C" H 7365 3905 50 0000 L CNN
-F 2 "" H 7288 3800 50 0001 C CNN
-F 3 "~" H 7250 3950 50 0001 C CNN
- 1 7250 3950
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 6050 3750 6050 3650
-Wire Wire Line
- 6050 3650 5700 3650
-Connection ~ 5700 3650
-Wire Wire Line
- 6050 3650 6850 3650
-Wire Wire Line
- 6850 3650 6850 3800
-Connection ~ 6050 3650
-Wire Wire Line
- 7250 3800 7250 3650
-Wire Wire Line
- 7250 3650 6850 3650
-Connection ~ 6850 3650
-Wire Wire Line
- 7250 4100 7250 4350
-Wire Wire Line
- 7250 4350 6850 4350
-Wire Wire Line
- 6850 4350 6850 4100
-Wire Wire Line
- 6050 4150 6050 4350
-Wire Wire Line
- 6050 4350 6850 4350
-Connection ~ 6850 4350
-$Comp
-L power:GND #PWR05
-U 1 1 5E53FA0C
-P 6850 4600
-F 0 "#PWR05" H 6850 4350 50 0001 C CNN
-F 1 "GND" H 6855 4427 50 0000 C CNN
-F 2 "" H 6850 4600 50 0001 C CNN
-F 3 "" H 6850 4600 50 0001 C CNN
- 1 6850 4600
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 6850 4600 6850 4350
-$Comp
-L Connector:Conn_Coaxial J6
-U 1 1 5E540AF4
-P 8050 4500
-F 0 "J6" H 8150 4475 50 0000 L CNN
-F 1 "Conn_Coaxial" H 8150 4384 50 0000 L CNN
-F 2 "" H 8050 4500 50 0001 C CNN
-F 3 " ~" H 8050 4500 50 0001 C CNN
- 1 8050 4500
- 1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J10
-U 1 1 5E541324
-P 8700 4500
-F 0 "J10" H 8628 4738 50 0000 C CNN
-F 1 "Conn_Coaxial" H 8628 4647 50 0000 C CNN
-F 2 "" H 8700 4500 50 0001 C CNN
-F 3 " ~" H 8700 4500 50 0001 C CNN
- 1 8700 4500
- -1 0 0 -1
-$EndComp
-$Comp
-L Connector:Conn_Coaxial J5
-U 1 1 5E542FDB
-P 8050 4050
-F 0 "J5" H 8150 4025 50 0000 L CNN
-F 1 "Conn_Coaxial" H 8150 3934 50 0000 L CNN
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<!doctype html>
<html lang="en">
<head>
-<title>12V Lead-Acid battery changer and terminal</title>
-<!-- 2020-03-21 Sat 00:35 -->
+<title>Battery charger and dual power supply unit</title>
+<!-- 2020-07-12 Sun 01:43 -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="generator" content="Org-mode">
</head>
<body>
<div id="content" class="container">
-<div class="row"><div class="col-md-9"><h1 class="title">12V Lead-Acid battery changer and terminal</h1>
+<div class="row"><div class="col-md-9"><h1 class="title">Battery charger and dual power supply unit</h1>
<div id="outline-container-sec-1" class="outline-2">
<h2 id="sec-1"><span class="section-number-2">1</span> General</h2>
<li>This design is released under Creative Commons Zero (CC0) license.
</li>
-<li>Author:
+<li>Authors:
<ul class="org-ul">
<li>Svjatoslav Agejenko
-</li>
+<ul class="org-ul">
<li>Homepage: <a href="https://svjatoslav.eu">https://svjatoslav.eu</a>
</li>
<li>Email: <a href="mailto://svjatoslav@svjatoslav.eu">svjatoslav@svjatoslav.eu</a>
</ul>
</li>
+<li>Valeria Agejenko
+</li>
+</ul>
+</li>
+
<li>See also:
<ul class="org-ul">
<li><a href="../../index.html">Other physical projects in this repository</a>
<div id="outline-container-sec-2" class="outline-2">
<h2 id="sec-2"><span class="section-number-2">2</span> Project description</h2>
<div class="outline-text-2" id="text-2">
+<p>
+I needed dual voltage power supply for my lab that runs on mains
+electricity (wall power) and slowly charges attached 12V Lead-Acid
+battery. Lead-acid battery in turn provides high current when needed
+as well as power in portable situations or when mains electricity is
+not available.
+</p>
+
<figure>
<p><img src="make.png" class="img-responsive" alt="make.png">
</p>
</figure>
+<p>
+Power supply provides about 13 Volts and 5 Volts simultaneously.
+</p>
+
+<p>
+!!!WARNING!!! I use USB-A connectors for power output, but IT IS NOT
+COMPATIBLE WITH USB DEVICES AND POSSIBLY WITH EXISTING USB CABLES.
+</p>
+
+<p>
+Normal USB devices and cables should not be plugged in! It would
+damage device/cable and likely power supply.
+</p>
+
+<p>
+I found USB-A connectors to be easily available, cheap, reliable and
+functional, so I re-purposed connector for my own needs but I'm using
+totally incompatible electrical wiring.
+</p>
+
<figure>
-<p><img src="make,%202.png" class="img-responsive" alt="make,%202.png">
+<p><img src="connector%20terminal/USB%20hack.png" class="img-responsive" alt="USB%20hack.png">
</p>
</figure>
<p>
-Simple charger and terminal (front-end) for 12V lead-acid battery.
+As seen, it has dual voltage output. Additionally one wire is
+dedicated to data transmission and can be used with <a href="https://en.wikipedia.org/wiki/1-Wire">1-wire</a>
+protocol. Power supply simply passively links all data wires together
+but does not participate in communication.
</p>
<p>
-Idea is to distribute power from rechargeable 12V battery to various
-appliances (soldering iron, radio transmitters, etc..) while also
-providing use-charging in the background.
+Power supply uses 3D printed body with lots of holes, for fanless
+cooling.
</p>
+
+<figure>
+<p><img src="body%20and%20covers/body,%201.png" class="img-responsive" alt="body,%201.png">
+</p>
+</figure>
+
<p>
-Single on/off button disconnects battery and up-step voltage source
-from front panel terminal connectors.
+Various modules are realized on top of prototype PCBs that slide into
+dedicated rails within the body.
</p>
+
+<figure>
+<p><img src="body%20and%20covers/body,%202.png" class="img-responsive" alt="body,%202.png">
+</p>
+</figure>
+
<p>
-<a href="https://www.amazon.de/gp/product/B07G4KWV6S/ref=ppx_yo_dt_b_asin_title_o08_s01?ie=UTF8&psc=1">Tecnoiot MT3608</a> voltage up-step is used. 3V DC external power supply
-is used to feed voltage up-step. Up-step is tuned to ~14.4 V.
+Like this:
</p>
<figure>
-<p><img src="schematic.png" class="img-responsive" alt="schematic.png">
+<p><img src="make,%202.png" class="img-responsive" alt="make,%202.png">
</p>
</figure>
<p>
-Current design is rather of blog (experience sharing) value. It has
-quite some drawbacks:
+When cover is closed, it blocks PCB movement:
</p>
-<ul class="org-ul">
-<li>Warning: Circuit has dangerous instability. Requires low voltage
-~3V but relatively high current external power supply. Using
-higher voltage but low current power supply could easily lead to
-situation where step-up generated load pushes power supply output
-voltage down too much. This leads to too much power being lost
-within power supply and easily leads to power supply overheating!
-</li>
-<li>There is no dedicated current limiter. 3V external power supply
-and up-step are acting as current limiters.
-</li>
+<figure>
+<p><img src="body%20and%20covers/cover.png" class="img-responsive" alt="cover.png">
+</p>
+</figure>
-<li>While RCA connectors do work as DC power connectors, but are not
-intended to be used this way and are not very reliable.
-</li>
+<p>
+There is still some empty space inside, so why not add dummy cover on
+top that can be replaced later with add-on functionality/expansion
+board/terminal :)
+</p>
-<li>Voltage up-step provided output is not very clean. Extra capacitors
-and induction coils could be added to remove high frequency noise in
-the voltage.
-</li>
-<li>Metallic and shielded body would be helpful to reduce
-electromagnetic/radio noise generated by step-up.
+<figure>
+<p><img src="body%20and%20covers/cover%20cover.png" class="img-responsive" alt="cover%20cover.png">
+</p>
+</figure>
+
+<p>
+Download:
+</p>
+<ul class="org-ul">
+<li><a href="body%20and%20covers/body.stl">Body STL file</a>
+</li>
+<li><a href="body%20and%20covers/cover.stl">Big cover STL file</a>
+</li>
+<li><a href="body%20and%20covers/cover%20cover.stl">Small dummy cover on top, STL file</a>
+</li>
+<li><a href="body%20and%20covers/body%20and%20covers.FCStd">Body and covers FreeCAD project</a>
</li>
</ul>
</div>
</div>
<div id="outline-container-sec-3" class="outline-2">
-<h2 id="sec-3"><span class="section-number-2">3</span> Body</h2>
+<h2 id="sec-3"><span class="section-number-2">3</span> Transformer and AC to DC converter</h2>
<div class="outline-text-2" id="text-3">
+<p>
+This is where high voltage from mains electricity enters the system.
+</p>
+
+<p>
+Schematic:
+<img src="transformer%20and%20AC%20DC%20converter%20board/schematic.png" class="img-responsive" alt="schematic.png">
+</p>
+
+<p>
+For safety I kept high voltage section as minimal as possible. That
+is, wall plug runs straight into transformer. Also I used <a href="https://www.amazon.de/gp/product/B07VGQKM3G/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1">UV hardening
+glue</a> for extra safety and isolation on PCB.
+</p>
+
+<p>
+Power on/off switch operates on already reduced voltage of about 30
+volts. Power switch is located on <a href="#sec-6">indicator panel</a>.
+</p>
+
<figure>
-<p><img src="body.png" class="img-responsive" alt="body.png">
+<p><img src="transformer%20and%20AC%20DC%20converter%20board/make,%201.png" class="img-responsive" alt="make,%201.png">
</p>
</figure>
+<p>
+DC current of about 30 volts is then routed to <a href="#sec-4">Main board</a>.
+</p>
+
<figure>
-<p><img src="cover.png" class="img-responsive" alt="cover.png">
+<p><img src="transformer%20and%20AC%20DC%20converter%20board/make,%202.png" class="img-responsive" alt="make,%202.png">
</p>
</figure>
+<p>
+<a href="https://www.amazon.de/gp/product/B07RLQH5TR/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1">Single sided prototype PCB is used</a>.
+</p>
+</div>
+</div>
+
+<div id="outline-container-sec-4" class="outline-2">
+<h2 id="sec-4"><a id="ID-65d68227-4bf2-4c4f-b4d3-c390bc6a9c34" name="ID-65d68227-4bf2-4c4f-b4d3-c390bc6a9c34"></a><span class="section-number-2">4</span> Main board</h2>
+<div class="outline-text-2" id="text-4">
+<p>
+This is logically main board because it appears to be central hub that
+connects all components. It also houses 2 <a href="https://www.amazon.de/gp/product/B072MQYJ93/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1">adjustable DC-DC Step Down
+voltage converters</a>.
+</p>
+
+
+<figure>
+<p><img src="main%20board/main%20board,%201.png" class="img-responsive" alt="main%20board,%201.png">
+</p>
+</figure>
+
+<p>
+High-level schematic of entire device:
+<img src="main%20board/schematic.png" class="img-responsive" alt="schematic.png">
+</p>
+
+<p>
+As seen from schematic, ~30 volts DC from transformer board is routed
+into first step-down converter that reduces it to about 15V. Reduced
+voltage is then directed to <a href="#sec-5">Current limiter circuit</a>. Current limiter
+loses about 2 volts. Now we have current and voltage limited power at
+about 13 volts. This power is used to charge connected 12V Lead-Acid
+battery. Also the same power is routed to <a href="#sec-7">connector terminal</a> to be
+consumed by connected devices.
+</p>
+
+<p>
+As seen from this schematic, device is not meant to provide high
+current for long periods of time. Instead it gets comparatively
+limited current to charge the battery and feed devices with low
+current requirements. Occasional current spikes are backed up by
+battery that stays in use-changing mode.
+</p>
+
+<p>
+Also about 13V output voltage is approximate and depends on connected
+battery charge level.
+</p>
+
+<p>
+Second Step-Down converter reduces voltage even further to quite
+precisely 5V DC. This resulting voltage is also routed to <a href="#sec-7">connector
+terminal</a>.
+</p>
+
+<p>
+Both 13V and 5V lines are also routed to <a href="#sec-6">indicator panel</a> for
+monitoring.
+</p>
+
+<p>
+There is single on/off switch. In off position, it disconnects battery
+and transformer from the system effectively powering everything down.
+</p>
+
+<p>
+On schematic above, some wires are annotated with numbers from 1
+to 13. This corresponds to output pins on the board.
+</p>
+
+
+<figure>
+<p><img src="main%20board/main%20board,%202.png" class="img-responsive" alt="main%20board,%202.png">
+</p>
+</figure>
+</div>
+</div>
+<div id="outline-container-sec-5" class="outline-2">
+<h2 id="sec-5"><a id="ID-afc22d23-9bc4-421c-9cac-e0ce34bd36bc" name="ID-afc22d23-9bc4-421c-9cac-e0ce34bd36bc"></a><span class="section-number-2">5</span> Current limiter</h2>
+<div class="outline-text-2" id="text-5">
+<p>
+Schematic:
+<img src="current%20limiter/schematic.png" class="img-responsive" alt="schematic.png">
+</p>
+
+<p>
+Simple LM317 based current limiter is used. I used 4.7 ohm
+resistor. It provides about 265 milliamps of current. See <a href="http://www.reuk.co.uk/wordpress/electric-circuit/lm317-current-calculator/">calculator</a>.
+</p>
+
+
+<figure>
+<p><img src="current%20limiter/current%20limiter,%201.png" class="img-responsive" alt="current%20limiter,%201.png">
+</p>
+</figure>
+
+<p>
+Thermal paste below and UV hardening glue on top is used to attach
+LM317 to the heatsink. There is also jumper-like solution on top
+right. This is handy to attach multimeter tap to verify/monitor
+current during initial device calibration.
+</p>
+
+<p>
+If attached battery is really empty, significant voltage drop can
+occur in LM317. Heatsink is needed to dissipate that power.
+</p>
+
+
+<figure>
+<p><img src="current%20limiter/current%20limiter,%202.png" class="img-responsive" alt="current%20limiter,%202.png">
+</p>
+</figure>
+
+<p>
+Note: resistor gets hot to.
+</p>
+</div>
+</div>
+
+<div id="outline-container-sec-6" class="outline-2">
+<h2 id="sec-6"><a id="ID-c9a69490-f920-4a31-b32e-b101bfc3d01b" name="ID-c9a69490-f920-4a31-b32e-b101bfc3d01b"></a><span class="section-number-2">6</span> Indicator panel</h2>
+<div class="outline-text-2" id="text-6">
+
+<figure>
+<p><img src="indicator%20panel/indicator%20panel,%201.png" class="img-responsive" alt="indicator%20panel,%201.png">
+</p>
+</figure>
+
+<p>
+Basically 2 digital DC voltmeters and main on/off switch.
+</p>
+
+
+<figure>
+<p><img src="indicator%20panel/indicator%20panel,%202.png" class="img-responsive" alt="indicator%20panel,%202.png">
+</p>
+</figure>
+
+<p>
+Download:
+</p>
+
+
+<figure>
+<p><img src="indicator%20panel/indicator%20panel.png" class="img-responsive" alt="indicator%20panel.png">
+</p>
+</figure>
<ul class="org-ul">
-<li>Download:
-<ul class="org-ul">
-<li><a href="body%20and%20cover.FCStd">body and cover FreeCAD file</a>
+<li><a href="indicator%20panel/indicator%20panel.stl">STL file</a>
</li>
-<li><a href="body.stl">body in STL format</a>
-</li>
-<li><a href="cover.stl">cover in STL format</a>
+<li><a href="indicator%20panel/indicator%20panel.FCStd">FreeCAD project</a>
</li>
</ul>
+</div>
+</div>
+
+<div id="outline-container-sec-7" class="outline-2">
+<h2 id="sec-7"><a id="ID-e33940bd-652f-4ec0-b53b-1c03e16941c8" name="ID-e33940bd-652f-4ec0-b53b-1c03e16941c8"></a><span class="section-number-2">7</span> Connector terminal</h2>
+<div class="outline-text-2" id="text-7">
+<p>
+Schematic:
+<img src="connector%20terminal/schematic.png" class="img-responsive" alt="schematic.png">
+</p>
+
+<p>
+As seen above, most of the USB connectors are used to deliver dual
+power output and 1-wire data connectivity, except one on the bottom
+right. This is used to attach 12V battery. Some capacitors are thrown
+in as well to stabilize against smaller current spikes.
+</p>
+
+<p>
+Electrically schematic is realized using smaller prototype PCBs.
+</p>
+
+
+<figure>
+<p><img src="connector%20terminal/make,%201.png" class="img-responsive" alt="make,%201.png">
+</p>
+</figure>
+
+
+<p>
+Those PCBs are wired to central small PCB that acts as a hub:
+</p>
+
+
+<figure>
+<p><img src="connector%20terminal/make,%202.png" class="img-responsive" alt="make,%202.png">
+</p>
+</figure>
+
+<p>
+PCBs are held together by being sandwiched between front panel:
+</p>
+
+
+<figure>
+<p><img src="connector%20terminal/front%20panel.png" class="img-responsive" alt="front%20panel.png">
+</p>
+</figure>
+
+<p>
+and smaller back-end plate:
+</p>
+
+
+<figure>
+<p><img src="connector%20terminal/back%20panel.png" class="img-responsive" alt="back%20panel.png">
+</p>
+</figure>
+
+<p>
+Result:
+</p>
+
+
+<figure>
+<p><img src="connector%20terminal/make,%203.png" class="img-responsive" alt="make,%203.png">
+</p>
+</figure>
+
+
+<p>
+Download:
+</p>
+<ul class="org-ul">
+<li><a href="connector%20terminal/front%20panel.stl">front panel STL</a>
+</li>
+<li><a href="connector%20terminal/back%20panel.stl">back panel STL</a>
+</li>
+<li><a href="connector%20terminal/connector%20terminal.FCStd">FreeCAD project</a>
</li>
</ul>
</div>
</div>
+
+<div id="outline-container-sec-8" class="outline-2">
+<h2 id="sec-8"><span class="section-number-2">8</span> Calibration</h2>
+<div class="outline-text-2" id="text-8">
+<p>
+Since device uses adjustable step-down modules, these need to be
+calibrated to provide correct output voltage. It is important that
+battery receives proper charging voltage otherwise either no charging
+occurs or battery starts gassing out and gets destroyed.
+</p>
+
+<p>
+See here for more details: <a href="https://www.powerstream.com/SLA.htm">https://www.powerstream.com/SLA.htm</a>
+</p>
+
+<hr >
+
+<p>
+Happy building! :)
+</p>
+</div>
+</div>
</div><div class="col-md-3"><nav id="table-of-contents">
<div id="text-table-of-contents" class="bs-docs-sidebar">
<ul class="nav">
<li><a href="#sec-1">1. General</a></li>
<li><a href="#sec-2">2. Project description</a></li>
-<li><a href="#sec-3">3. Body</a></li>
+<li><a href="#sec-3">3. Transformer and AC to DC converter</a></li>
+<li><a href="#sec-4">4. Main board</a></li>
+<li><a href="#sec-5">5. Current limiter</a></li>
+<li><a href="#sec-6">6. Indicator panel</a></li>
+<li><a href="#sec-7">7. Connector terminal</a></li>
+<li><a href="#sec-8">8. Calibration</a></li>
</ul>
</div>
</nav>
</div></div></div>
<footer id="postamble" class="">
<div><p class="author">Author: Svjatoslav Agejenko</p>
-<p class="date">Created: 2020-03-21 Sat 00:35</p>
+<p class="date">Created: 2020-07-12 Sun 01:43</p>
<p class="creator"><a href="http://www.gnu.org/software/emacs/">Emacs</a> 26.1 (<a href="http://orgmode.org">Org-mode</a> 9.1.9)</p>
</div>
</footer>
-#+TITLE: 12V Lead-Acid battery changer and terminal
+#+TITLE: Battery charger and dual power supply unit
#+AUTHOR: Svjatoslav Agejenko
#+LANGUAGE: en
+ This design is released under Creative Commons Zero (CC0) license.
-+ Author:
++ Authors:
- Svjatoslav Agejenko
- - Homepage: https://svjatoslav.eu
- - Email: [[mailto://svjatoslav@svjatoslav.eu][svjatoslav@svjatoslav.eu]]
+ - Homepage: https://svjatoslav.eu
+ - Email: [[mailto://svjatoslav@svjatoslav.eu][svjatoslav@svjatoslav.eu]]
+
+ - Valeria Agejenko
+ See also:
- [[../../index.html][Other physical projects in this repository]]
- [[https://www.svjatoslav.eu/projects/][Other projects hosted at svjatoslav.eu]]
* Project description
+I needed dual voltage power supply for my lab that runs on mains
+electricity (wall power) and slowly charges attached 12V Lead-Acid
+battery. Lead-acid battery in turn provides high current when needed
+as well as power in portable situations or when mains electricity is
+not available.
+
[[file:make.png]]
+Power supply provides about 13 Volts and 5 Volts simultaneously.
+
+!!!WARNING!!! I use USB-A connectors for power output, but IT IS NOT
+COMPATIBLE WITH USB DEVICES AND POSSIBLY WITH EXISTING USB CABLES.
+
+Normal USB devices and cables should not be plugged in! It would
+damage device/cable and likely power supply.
+
+I found USB-A connectors to be easily available, cheap, reliable and
+functional, so I re-purposed connector for my own needs but I'm using
+totally incompatible electrical wiring.
+
+[[file:connector%20terminal/USB%20hack.png]]
+
+As seen, it has dual voltage output. Additionally one wire is
+dedicated to data transmission and can be used with [[https://en.wikipedia.org/wiki/1-Wire][1-wire]]
+protocol. Power supply simply passively links all data wires together
+but does not participate in communication.
+
+Power supply uses 3D printed body with lots of holes, for fanless
+cooling.
+
+[[file:body%20and%20covers/body,%201.png]]
+
+Various modules are realized on top of prototype PCBs that slide into
+dedicated rails within the body.
+
+[[file:body%20and%20covers/body,%202.png]]
+
+Like this:
+
[[file:make,%202.png]]
-Simple charger and terminal (front-end) for 12V lead-acid battery.
+When cover is closed, it blocks PCB movement:
+
+[[file:body%20and%20covers/cover.png]]
+
+There is still some empty space inside, so why not add dummy cover on
+top that can be replaced later with add-on functionality/expansion
+board/terminal :)
+
+[[file:body%20and%20covers/cover%20cover.png]]
+
+Download:
++ [[file:body%20and%20covers/body.stl][Body STL file]]
++ [[file:body%20and%20covers/cover.stl][Big cover STL file]]
++ [[file:body%20and%20covers/cover%20cover.stl][Small dummy cover on top, STL file]]
++ [[file:body%20and%20covers/body%20and%20covers.FCStd][Body and covers FreeCAD project]]
+
+* Transformer and AC to DC converter
+
+This is where high voltage from mains electricity enters the system.
+
+Schematic:
+[[file:transformer%20and%20AC%20DC%20converter%20board/schematic.png]]
+
+For safety I kept high voltage section as minimal as possible. That
+is, wall plug runs straight into transformer. Also I used [[https://www.amazon.de/gp/product/B07VGQKM3G/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1][UV hardening
+glue]] for extra safety and isolation on PCB.
+
+Power on/off switch operates on already reduced voltage of about 30
+volts. Power switch is located on [[id:c9a69490-f920-4a31-b32e-b101bfc3d01b][indicator panel]].
+
+[[file:transformer%20and%20AC%20DC%20converter%20board/make,%201.png]]
+
+DC current of about 30 volts is then routed to [[id:65d68227-4bf2-4c4f-b4d3-c390bc6a9c34][Main board]].
+
+[[file:transformer%20and%20AC%20DC%20converter%20board/make,%202.png]]
+
+[[https://www.amazon.de/gp/product/B07RLQH5TR/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1][Single sided prototype PCB is used]].
+
+* Main board
+:PROPERTIES:
+:ID: 65d68227-4bf2-4c4f-b4d3-c390bc6a9c34
+:END:
+
+This is logically main board because it appears to be central hub that
+connects all components. It also houses 2 [[https://www.amazon.de/gp/product/B072MQYJ93/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1][adjustable DC-DC Step Down
+voltage converters]].
+
+[[file:main%20board/main%20board,%201.png]]
+
+High-level schematic of entire device:
+[[file:main%20board/schematic.png]]
+
+As seen from schematic, ~30 volts DC from transformer board is routed
+into first step-down converter that reduces it to about 15V. Reduced
+voltage is then directed to [[id:afc22d23-9bc4-421c-9cac-e0ce34bd36bc][Current limiter circuit]]. Current limiter
+loses about 2 volts. Now we have current and voltage limited power at
+about 13 volts. This power is used to charge connected 12V Lead-Acid
+battery. Also the same power is routed to [[id:e33940bd-652f-4ec0-b53b-1c03e16941c8][connector terminal]] to be
+consumed by connected devices.
+
+As seen from this schematic, device is not meant to provide high
+current for long periods of time. Instead it gets comparatively
+limited current to charge the battery and feed devices with low
+current requirements. Occasional current spikes are backed up by
+battery that stays in use-changing mode.
+
+Also about 13V output voltage is approximate and depends on connected
+battery charge level.
+
+Second Step-Down converter reduces voltage even further to quite
+precisely 5V DC. This resulting voltage is also routed to [[id:e33940bd-652f-4ec0-b53b-1c03e16941c8][connector
+terminal]].
+
+Both 13V and 5V lines are also routed to [[id:c9a69490-f920-4a31-b32e-b101bfc3d01b][indicator panel]] for
+monitoring.
+
+There is single on/off switch. In off position, it disconnects battery
+and transformer from the system effectively powering everything down.
+
+On schematic above, some wires are annotated with numbers from 1
+to 13. This corresponds to output pins on the board.
+
+[[file:main%20board/main%20board,%202.png]]
+* Current limiter
+:PROPERTIES:
+:ID: afc22d23-9bc4-421c-9cac-e0ce34bd36bc
+:END:
+
+Schematic:
+[[file:current%20limiter/schematic.png]]
+
+Simple LM317 based current limiter is used. I used 4.7 ohm
+resistor. It provides about 265 milliamps of current. See [[http://www.reuk.co.uk/wordpress/electric-circuit/lm317-current-calculator/][calculator]].
+
+[[file:current%20limiter/current%20limiter,%201.png]]
+
+Thermal paste below and UV hardening glue on top is used to attach
+LM317 to the heatsink. There is also jumper-like solution on top
+right. This is handy to attach multimeter tap to verify/monitor
+current during initial device calibration.
+
+If attached battery is really empty, significant voltage drop can
+occur in LM317. Heatsink is needed to dissipate that power.
+
+[[file:current%20limiter/current%20limiter,%202.png]]
+
+Note: resistor gets hot to.
+
+* Indicator panel
+:PROPERTIES:
+:ID: c9a69490-f920-4a31-b32e-b101bfc3d01b
+:END:
+
+[[file:indicator%20panel/indicator%20panel,%201.png]]
+
+Basically 2 digital DC voltmeters and main on/off switch.
+
+[[file:indicator%20panel/indicator%20panel,%202.png]]
+
+Download:
+
+[[file:indicator%20panel/indicator%20panel.png]]
+
++ [[file:indicator%20panel/indicator%20panel.stl][STL file]]
++ [[file:indicator%20panel/indicator%20panel.FCStd][FreeCAD project]]
+
+* Connector terminal
+:PROPERTIES:
+:ID: e33940bd-652f-4ec0-b53b-1c03e16941c8
+:END:
+
+Schematic:
+[[file:connector%20terminal/schematic.png]]
+
+As seen above, most of the USB connectors are used to deliver dual
+power output and 1-wire data connectivity, except one on the bottom
+right. This is used to attach 12V battery. Some capacitors are thrown
+in as well to stabilize against smaller current spikes.
+
+Electrically schematic is realized using smaller prototype PCBs.
+
+[[file:connector%20terminal/make,%201.png]]
+
-Idea is to distribute power from rechargeable 12V battery to various
-appliances (soldering iron, radio transmitters, etc..) while also
-providing use-charging in the background.
+Those PCBs are wired to central small PCB that acts as a hub:
-Single on/off button disconnects battery and up-step voltage source
-from front panel terminal connectors.
+[[file:connector%20terminal/make,%202.png]]
-[[https://www.amazon.de/gp/product/B07G4KWV6S/ref=ppx_yo_dt_b_asin_title_o08_s01?ie=UTF8&psc=1][Tecnoiot MT3608]] voltage up-step is used. 3V DC external power supply
-is used to feed voltage up-step. Up-step is tuned to ~14.4 V.
+PCBs are held together by being sandwiched between front panel:
-[[file:schematic.png]]
+[[file:connector%20terminal/front%20panel.png]]
-Current design is rather of blog (experience sharing) value. It has
-quite some drawbacks:
+and smaller back-end plate:
-- Warning: Circuit has dangerous instability. Requires low voltage
- ~3V but relatively high current external power supply. Using
- higher voltage but low current power supply could easily lead to
- situation where step-up generated load pushes power supply output
- voltage down too much. This leads to too much power being lost
- within power supply and easily leads to power supply overheating!
+[[file:connector%20terminal/back%20panel.png]]
-- There is no dedicated current limiter. 3V external power supply
- and up-step are acting as current limiters.
+Result:
-- While RCA connectors do work as DC power connectors, but are not
- intended to be used this way and are not very reliable.
+[[file:connector%20terminal/make,%203.png]]
-- Voltage up-step provided output is not very clean. Extra capacitors
- and induction coils could be added to remove high frequency noise in
- the voltage.
-- Metallic and shielded body would be helpful to reduce
- electromagnetic/radio noise generated by step-up.
+Download:
++ [[file:connector%20terminal/front%20panel.stl][front panel STL]]
++ [[file:connector%20terminal/back%20panel.stl][back panel STL]]
++ [[file:connector%20terminal/connector%20terminal.FCStd][FreeCAD project]]
-* Body
+* Calibration
-[[file:body.png]]
+Since device uses adjustable step-down modules, these need to be
+calibrated to provide correct output voltage. It is important that
+battery receives proper charging voltage otherwise either no charging
+occurs or battery starts gassing out and gets destroyed.
-[[file:cover.png]]
+See here for more details: https://www.powerstream.com/SLA.htm
+-----
-+ Download:
- + [[file:body%20and%20cover.FCStd][body and cover FreeCAD file]]
- + [[file:body.stl][body in STL format]]
- + [[file:cover.stl][cover in STL format]]
+Happy building! :)
projects / physical.git / commitdiff
