From: Svjatoslav Agejenko Date: Sun, 11 Apr 2021 18:50:19 +0000 (+0300) Subject: Added Baofeng battery charger mod X-Git-Url: http://www2.svjatoslav.eu/gitweb/?a=commitdiff_plain;h=f202fcfc8fd99a3e16ee903ee78137beb0ac3bd0;p=physical.git Added Baofeng battery charger mod --- diff --git a/index.html b/index.html index 61a44a9..c9f76e0 100644 --- a/index.html +++ b/index.html @@ -3,7 +3,7 @@ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> - + Physical projects @@ -231,32 +231,32 @@ pre {background-color: #111; color: #ccc;}

Table of Contents

-
-

1 General

+
+

1 General

Collection of physical projects. Electronics, 3D designs etc.. @@ -285,8 +285,8 @@ DESIGNS AT YOUR OWN RISK.

-
-

1.1 repository

+
+

1.1 repository

-
-

2 Cases, covers, holders, organizers

+
+

2 Cases, covers, holders, organizers

-
-

2.1 Measurement

+
+

2.1 Measurement

  • Digital caliphers battery mod and storage box @@ -324,8 +324,8 @@ git clone https://www2.svjatoslav.eu/git/physical.git
-
-

2.2 Optics

+
+

2.2 Optics

  • Case for 52mm macro filter @@ -345,8 +345,8 @@ git clone https://www2.svjatoslav.eu/git/physical.git
-
-

2.3 Miscellaneous

+
+

2.3 Miscellaneous

  • Book stand @@ -370,8 +370,8 @@ git clone https://www2.svjatoslav.eu/git/physical.git
-
-

2.4 Cable / wire

+
+

2.4 Cable / wire

  • Cable organizer @@ -387,13 +387,19 @@ git clone https://www2.svjatoslav.eu/git/physical.git
-
-

3 Miscellaneous

+
+

3 Miscellaneous

  • 12V Lead-Acid battery charger and terminal
    • +
  • Baofeng radio battery charger modification +
    • +
+ + +
  • adjustable resistor / indicator
    • @@ -414,8 +420,8 @@ git clone https://www2.svjatoslav.eu/git/physical.git
-
-

3.1 Audio

+
+

3.1 Audio

  • Portable stereo speaker @@ -428,8 +434,8 @@ git clone https://www2.svjatoslav.eu/git/physical.git
-
-

4 Optics

+
+

4 Optics

  • 35mm film copying device @@ -444,8 +450,8 @@ git clone https://www2.svjatoslav.eu/git/physical.git
-
-

5 See also

+
+

5 See also

  • Jay Doscher blog: https://back7.co/
    • @@ -458,7 +464,7 @@ git clone https://www2.svjatoslav.eu/git/physical.git

Author: Svjatoslav Agejenko

-

Created: 2021-04-11 Sun 21:16

+

Created: 2021-04-11 Sun 21:49

Validate

diff --git a/index.org b/index.org index ddb934c..7aa813f 100644 --- a/index.org +++ b/index.org @@ -146,6 +146,12 @@ Collection of physical projects. Electronics, 3D designs etc.. misc/12V%20Lead-Acid%20battery%20changer%20and%20terminal/make.png )}}} ++ Baofeng radio battery charger modification + {{{imglnk( + misc/Baofeng%20radio%20battery%20charger%20case%20mod/index.html, + misc/Baofeng%20radio%20battery%20charger%20case%20mod/make.png + )}}} + + adjustable resistor / indicator {{{imglnk( misc/adjustable%20resistor/index.html, diff --git a/misc/Baofeng radio battery charger case mod/assembled.png b/misc/Baofeng radio battery charger case mod/assembled.png new file mode 100644 index 0000000..692854f Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/assembled.png differ diff --git a/misc/Baofeng radio battery charger case mod/battery changer.FCStd b/misc/Baofeng radio battery charger case mod/battery changer.FCStd new file mode 100644 index 0000000..fb8fac5 Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/battery changer.FCStd differ diff --git a/misc/Baofeng radio battery charger case mod/body.png b/misc/Baofeng radio battery charger case mod/body.png new file mode 100644 index 0000000..08a4e78 Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/body.png differ diff --git a/misc/Baofeng radio battery charger case mod/body.stl b/misc/Baofeng radio battery charger case mod/body.stl new file mode 100644 index 0000000..6345436 Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/body.stl differ diff --git a/misc/Baofeng radio battery charger case mod/cover.png b/misc/Baofeng radio battery charger case mod/cover.png new file mode 100644 index 0000000..21ea51a Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/cover.png differ diff --git a/misc/Baofeng radio battery charger case mod/cover.stl b/misc/Baofeng radio battery charger case mod/cover.stl new file mode 100644 index 0000000..de9b471 Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/cover.stl differ diff --git a/misc/Baofeng radio battery charger case mod/electrical.png b/misc/Baofeng radio battery charger case mod/electrical.png new file mode 100644 index 0000000..b336eca Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/electrical.png differ diff --git a/misc/Baofeng radio battery charger case mod/electrical/changer.sch b/misc/Baofeng radio battery charger case mod/electrical/changer.sch new file mode 100644 index 0000000..6868a26 --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/electrical/changer.sch @@ -0,0 +1,16 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 1 3 +Title "" +Date "" +Rev "" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "" +Comment4 "" +$EndDescr +$EndSCHEMATC diff --git a/misc/Baofeng radio battery charger case mod/electrical/changer.sch-bak b/misc/Baofeng radio battery charger case mod/electrical/changer.sch-bak new file mode 100644 index 0000000..6868a26 --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/electrical/changer.sch-bak @@ -0,0 +1,16 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 1 3 +Title "" +Date "" +Rev "" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "" +Comment4 "" +$EndDescr +$EndSCHEMATC diff --git a/misc/Baofeng radio battery charger case mod/electrical/schematic-cache.lib b/misc/Baofeng radio battery charger case mod/electrical/schematic-cache.lib new file mode 100644 index 0000000..385eac2 --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/electrical/schematic-cache.lib @@ -0,0 +1,116 @@ +EESchema-LIBRARY Version 2.4 +#encoding utf-8 +# +# 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 B +X D+ 3 300 0 100 L 50 50 1 1 B +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_Battery +# +DEF Device_Battery BT 0 0 N N 1 F N +F0 "BT" 100 100 50 H V L CNN +F1 "Device_Battery" 100 0 50 H V L CNN +F2 "" 0 60 50 V I C CNN +F3 "" 0 60 50 V I C CNN +DRAW +S -80 -55 80 -65 0 1 0 F +S -80 70 80 60 0 1 0 F +S -52 -78 50 -98 0 1 0 F +S -52 47 50 27 0 1 0 F +P 2 0 1 0 0 -60 0 -50 N +P 2 0 1 0 0 -40 0 -30 N +P 2 0 1 0 0 -20 0 -10 N +P 2 0 1 0 0 0 0 10 N +P 2 0 1 0 0 20 0 30 N +P 2 0 1 0 0 70 0 100 N +P 2 0 1 10 10 105 50 105 N +P 2 0 1 10 30 125 30 85 N +X + 1 0 200 100 D 50 50 1 1 P +X - 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_L +# +DEF Device_L L 0 40 N N 1 F N +F0 "L" -50 0 50 V V C CNN +F1 "Device_L" 75 0 50 V V C CNN +F2 "" 0 0 50 H I C CNN +F3 "" 0 0 50 H I C CNN +$FPLIST + Choke_* + *Coil* + Inductor_* + L_* +$ENDFPLIST +DRAW +A 0 -75 25 -899 899 0 1 0 N 0 -100 0 -50 +A 0 -25 25 -899 899 0 1 0 N 0 -50 0 0 +A 0 25 25 -899 899 0 1 0 N 0 0 0 50 +A 0 75 25 -899 899 0 1 0 N 0 50 0 100 +X 1 1 0 150 50 D 50 50 1 1 P +X 2 2 0 -150 50 U 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 diff --git a/misc/Baofeng radio battery charger case mod/electrical/schematic.sch b/misc/Baofeng radio battery charger case mod/electrical/schematic.sch new file mode 100644 index 0000000..d41ea32 --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/electrical/schematic.sch @@ -0,0 +1,159 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 1 3 +Title "" +Date "" +Rev "" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "" +Comment4 "" +$EndDescr +$Comp +L Connector:USB_A J? +U 1 1 6066D5F2 +P 2550 3250 +F 0 "J?" H 2607 3717 50 0000 C CNN +F 1 "USB_A" H 2607 3626 50 0000 C CNN +F 2 "" H 2700 3200 50 0001 C CNN +F 3 " ~" H 2700 3200 50 0001 C CNN + 1 2550 3250 + 1 0 0 -1 +$EndComp +$Comp +L Device:L L? +U 1 1 6066E023 +P 3150 3050 +F 0 "L?" V 2969 3050 50 0000 C CNN +F 1 "L" V 3060 3050 50 0000 C CNN +F 2 "" H 3150 3050 50 0001 C CNN +F 3 "~" H 3150 3050 50 0001 C CNN + 1 3150 3050 + 0 1 1 0 +$EndComp +$Comp +L Device:C C? +U 1 1 6066E800 +P 3400 3450 +F 0 "C?" H 3515 3496 50 0000 L CNN +F 1 "C" H 3515 3405 50 0000 L CNN +F 2 "" H 3438 3300 50 0001 C CNN +F 3 "~" H 3400 3450 50 0001 C CNN + 1 3400 3450 + 1 0 0 -1 +$EndComp +$Comp +L power:GND #PWR? +U 1 1 6066F429 +P 3400 3800 +F 0 "#PWR?" H 3400 3550 50 0001 C CNN +F 1 "GND" H 3405 3627 50 0000 C CNN +F 2 "" H 3400 3800 50 0001 C CNN +F 3 "" H 3400 3800 50 0001 C CNN + 1 3400 3800 + 1 0 0 -1 +$EndComp +Wire Wire Line + 3400 3800 3400 3600 +Wire Wire Line + 3400 3300 3400 3050 +Wire Wire Line + 3400 3050 3300 3050 +Wire Wire Line + 3000 3050 2850 3050 +$Comp +L power:GND #PWR? +U 1 1 6066F9FA +P 2550 3800 +F 0 "#PWR?" H 2550 3550 50 0001 C CNN +F 1 "GND" H 2555 3627 50 0000 C CNN +F 2 "" H 2550 3800 50 0001 C CNN +F 3 "" H 2550 3800 50 0001 C CNN + 1 2550 3800 + 1 0 0 -1 +$EndComp +Wire Wire Line + 2550 3800 2550 3650 +$Sheet +S 3700 2900 1200 450 +U 6066FDCB +F0 "Voltage upstep" 50 +F1 "upstep.sch" 50 +F2 "Vin" I L 3700 3050 50 +F3 "Vout" O R 4900 3050 50 +$EndSheet +Wire Wire Line + 3400 3050 3700 3050 +Connection ~ 3400 3050 +$Comp +L Device:C C? +U 1 1 6067078E +P 5100 3500 +F 0 "C?" H 5215 3546 50 0000 L CNN +F 1 "C" H 5215 3455 50 0000 L CNN +F 2 "" H 5138 3350 50 0001 C CNN +F 3 "~" H 5100 3500 50 0001 C CNN + 1 5100 3500 + 1 0 0 -1 +$EndComp +$Sheet +S 5300 2900 1100 450 +U 60670C08 +F0 "charger" 50 +F1 "changer.sch" 50 +F2 "Vin" I L 5300 3050 50 +F3 "Vout" O R 6400 3050 50 +$EndSheet +Wire Wire Line + 4900 3050 5100 3050 +Wire Wire Line + 5100 3050 5100 3350 +Wire Wire Line + 5100 3050 5300 3050 +Connection ~ 5100 3050 +$Comp +L Device:Battery BT? +U 1 1 6067194B +P 6600 3450 +F 0 "BT?" H 6708 3496 50 0000 L CNN +F 1 "Battery" H 6708 3405 50 0000 L CNN +F 2 "" V 6600 3510 50 0001 C CNN +F 3 "~" V 6600 3510 50 0001 C CNN + 1 6600 3450 + 1 0 0 -1 +$EndComp +Wire Wire Line + 6600 3250 6600 3050 +Wire Wire Line + 6600 3050 6400 3050 +$Comp +L power:GND #PWR? +U 1 1 6067278E +P 6600 3750 +F 0 "#PWR?" H 6600 3500 50 0001 C CNN +F 1 "GND" H 6605 3577 50 0000 C CNN +F 2 "" H 6600 3750 50 0001 C CNN +F 3 "" H 6600 3750 50 0001 C CNN + 1 6600 3750 + 1 0 0 -1 +$EndComp +$Comp +L power:GND #PWR? +U 1 1 60672D3C +P 5100 3750 +F 0 "#PWR?" H 5100 3500 50 0001 C CNN +F 1 "GND" H 5105 3577 50 0000 C CNN +F 2 "" H 5100 3750 50 0001 C CNN +F 3 "" H 5100 3750 50 0001 C CNN + 1 5100 3750 + 1 0 0 -1 +$EndComp +Wire Wire Line + 5100 3750 5100 3650 +Wire Wire Line + 6600 3750 6600 3650 +$EndSCHEMATC diff --git a/misc/Baofeng radio battery charger case mod/electrical/schematic.sch-bak b/misc/Baofeng radio battery charger case mod/electrical/schematic.sch-bak new file mode 100644 index 0000000..4c58992 --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/electrical/schematic.sch-bak @@ -0,0 +1,159 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 1 3 +Title "" +Date "" +Rev "" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "" +Comment4 "" +$EndDescr +$Comp +L Connector:USB_A J? +U 1 1 6066D5F2 +P 2550 3250 +F 0 "J?" H 2607 3717 50 0000 C CNN +F 1 "USB_A" H 2607 3626 50 0000 C CNN +F 2 "" H 2700 3200 50 0001 C CNN +F 3 " ~" H 2700 3200 50 0001 C CNN + 1 2550 3250 + 1 0 0 -1 +$EndComp +$Comp +L Device:L L? +U 1 1 6066E023 +P 3150 3050 +F 0 "L?" V 2969 3050 50 0000 C CNN +F 1 "L" V 3060 3050 50 0000 C CNN +F 2 "" H 3150 3050 50 0001 C CNN +F 3 "~" H 3150 3050 50 0001 C CNN + 1 3150 3050 + 0 1 1 0 +$EndComp +$Comp +L Device:C C? +U 1 1 6066E800 +P 3400 3350 +F 0 "C?" H 3515 3396 50 0000 L CNN +F 1 "C" H 3515 3305 50 0000 L CNN +F 2 "" H 3438 3200 50 0001 C CNN +F 3 "~" H 3400 3350 50 0001 C CNN + 1 3400 3350 + 1 0 0 -1 +$EndComp +$Comp +L power:GND #PWR? +U 1 1 6066F429 +P 3400 3700 +F 0 "#PWR?" H 3400 3450 50 0001 C CNN +F 1 "GND" H 3405 3527 50 0000 C CNN +F 2 "" H 3400 3700 50 0001 C CNN +F 3 "" H 3400 3700 50 0001 C CNN + 1 3400 3700 + 1 0 0 -1 +$EndComp +Wire Wire Line + 3400 3700 3400 3500 +Wire Wire Line + 3400 3200 3400 3050 +Wire Wire Line + 3400 3050 3300 3050 +Wire Wire Line + 3000 3050 2850 3050 +$Comp +L power:GND #PWR? +U 1 1 6066F9FA +P 2550 3800 +F 0 "#PWR?" H 2550 3550 50 0001 C CNN +F 1 "GND" H 2555 3627 50 0000 C CNN +F 2 "" H 2550 3800 50 0001 C CNN +F 3 "" H 2550 3800 50 0001 C CNN + 1 2550 3800 + 1 0 0 -1 +$EndComp +Wire Wire Line + 2550 3800 2550 3650 +$Sheet +S 3700 2900 1200 450 +U 6066FDCB +F0 "Voltage upstep" 50 +F1 "upstep.sch" 50 +F2 "Vin" I L 3700 3050 50 +F3 "Vout" O R 4900 3050 50 +$EndSheet +Wire Wire Line + 3400 3050 3700 3050 +Connection ~ 3400 3050 +$Comp +L Device:C C? +U 1 1 6067078E +P 5100 3600 +F 0 "C?" H 5215 3646 50 0000 L CNN +F 1 "C" H 5215 3555 50 0000 L CNN +F 2 "" H 5138 3450 50 0001 C CNN +F 3 "~" H 5100 3600 50 0001 C CNN + 1 5100 3600 + 1 0 0 -1 +$EndComp +$Sheet +S 5300 2900 1100 450 +U 60670C08 +F0 "charger" 50 +F1 "changer.sch" 50 +F2 "Vin" I L 5300 3050 50 +F3 "Vout" O R 6400 3050 50 +$EndSheet +Wire Wire Line + 4900 3050 5100 3050 +Wire Wire Line + 5100 3050 5100 3450 +Wire Wire Line + 5100 3050 5300 3050 +Connection ~ 5100 3050 +$Comp +L Device:Battery BT? +U 1 1 6067194B +P 6600 3450 +F 0 "BT?" H 6708 3496 50 0000 L CNN +F 1 "Battery" H 6708 3405 50 0000 L CNN +F 2 "" V 6600 3510 50 0001 C CNN +F 3 "~" V 6600 3510 50 0001 C CNN + 1 6600 3450 + 1 0 0 -1 +$EndComp +Wire Wire Line + 6600 3250 6600 3050 +Wire Wire Line + 6600 3050 6400 3050 +$Comp +L power:GND #PWR? +U 1 1 6067278E +P 6600 3750 +F 0 "#PWR?" H 6600 3500 50 0001 C CNN +F 1 "GND" H 6605 3577 50 0000 C CNN +F 2 "" H 6600 3750 50 0001 C CNN +F 3 "" H 6600 3750 50 0001 C CNN + 1 6600 3750 + 1 0 0 -1 +$EndComp +$Comp +L power:GND #PWR? +U 1 1 60672D3C +P 5100 3850 +F 0 "#PWR?" H 5100 3600 50 0001 C CNN +F 1 "GND" H 5105 3677 50 0000 C CNN +F 2 "" H 5100 3850 50 0001 C CNN +F 3 "" H 5100 3850 50 0001 C CNN + 1 5100 3850 + 1 0 0 -1 +$EndComp +Wire Wire Line + 5100 3850 5100 3750 +Wire Wire Line + 6600 3750 6600 3650 +$EndSCHEMATC diff --git a/misc/Baofeng radio battery charger case mod/electrical/upstep.sch b/misc/Baofeng radio battery charger case mod/electrical/upstep.sch new file mode 100644 index 0000000..8cd5fdf --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/electrical/upstep.sch @@ -0,0 +1,16 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 2 3 +Title "" +Date "" +Rev "" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "" +Comment4 "" +$EndDescr +$EndSCHEMATC diff --git a/misc/Baofeng radio battery charger case mod/electrical/upstep.sch-bak b/misc/Baofeng radio battery charger case mod/electrical/upstep.sch-bak new file mode 100644 index 0000000..8cd5fdf --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/electrical/upstep.sch-bak @@ -0,0 +1,16 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 2 3 +Title "" +Date "" +Rev "" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "" +Comment4 "" +$EndDescr +$EndSCHEMATC diff --git a/misc/Baofeng radio battery charger case mod/index.html b/misc/Baofeng radio battery charger case mod/index.html new file mode 100644 index 0000000..7bc23a3 --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/index.html @@ -0,0 +1,378 @@ + + + + + + + +Ham radio battery charger mod + + + + + + + + + + + +
+

Ham radio battery charger mod

+
+

Table of Contents

+
+ +
+
+ +
+

1 General

+
+ +
+
+ +
+

2 Project description

+
+

+Warning: this project is quite hacky. It requires breaking original +charger to get required critical charger part. Instructions are not +very detailed. Only describe the overall idea. Do not attempt to +reproduce this unless you exactly know what you are doing. +

+ +
+ + +

+I have Baofeng GT-STP and Baofeng UV-82 radios. Their batteries have +slightly different geometry, so chargers are physically not +compatible. Also each changer comes with its own power adapter to plug +into wall power socket. Electrically batteries are apparently +compatible. +

+ +

+By building this battery charger I solved 2 issues: +

+
    +
  • It can charge batteries for both radios. Is physically and +electrically compatible to both models.
    • +
  • Wall adapter is no longer needed. Now it is powered by USB connector +from computer.
    • +
+ + +
+

make.png +

+
+ +

+Body ignores small physical differences between batteries and both can +be plugged in. +

+ + +
+

body.png +

+
+ +

+Front side contains critical fragment of the original changer circuit +board to drive the actual battery charging. +

+ + +
+

make, 1.png +

+
+ +

+Back side contains voltage upstep converter that is tuned to convert +5V USB input to 10V output that is required by the charger. +

+ + +
+

make, 2.png +

+
+ +

+Voltage upstep converter can produce significant voltage +ripples/impulses that travel backwards to the power source and forward +to the changer. To reduce this effect, there are capacitors and +inductor. +

+ + +
+

electrical.png +

+
+ +

+Front and back sides are connected by wiring at the bottom. Also there +are screws to hold original Baofeng charger pins/springs that connect +to the battery. +

+ + +
+

make, 3.png +

+
+ +

+After assembly is complete, back, front and bottom parts are sealed +with lid: cover.png +

+
+
+
+
+

Author: Svjatoslav Agejenko

+

Created: 2021-04-11 Sun 21:46

+

Validate

+
+ + diff --git a/misc/Baofeng radio battery charger case mod/index.org b/misc/Baofeng radio battery charger case mod/index.org new file mode 100644 index 0000000..253a13d --- /dev/null +++ b/misc/Baofeng radio battery charger case mod/index.org @@ -0,0 +1,86 @@ +#+TITLE: Ham radio battery charger mod +#+author: Svjatoslav Agejenko +#+LANGUAGE: en + +* (document settings) :noexport: +** use dark style for TWBS-HTML exporter +#+HTML_HEAD: +#+HTML_HEAD: +#+HTML_HEAD: +#+HTML_HEAD: + +* General ++ DISCLAIMER: I DO ELECTRONICS AND 3D DESIGN SOLELY AS A HOBBY. THERE + COULD BE ERRORS THAT CAN RESULT IN ALL KINDS OF DAMAGE. USE THESE + DESIGNS AT YOUR OWN RISK. + ++ This design is released under Creative Commons Zero (CC0) license. + ++ Authors: + - Svjatoslav Agejenko + - 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 + +Warning: this project is quite hacky. It requires breaking original +charger to get required critical charger part. Instructions are not +very detailed. Only describe the overall idea. Do not attempt to +reproduce this unless you exactly know what you are doing. + +------ + + +I have Baofeng GT-STP and Baofeng UV-82 radios. Their batteries have +slightly different geometry, so chargers are physically not +compatible. Also each changer comes with its own power adapter to plug +into wall power socket. Electrically batteries are apparently +compatible. + +By building this battery charger I solved 2 issues: ++ It can charge batteries for both radios. Is physically and + electrically compatible to both models. ++ Wall adapter is no longer needed. Now it is powered by USB connector + from computer. + +[[file:make.png]] + +Body ignores small physical differences between batteries and both can +be plugged in. + +[[file:body.png]] + +Front side contains critical fragment of the original changer circuit +board to drive the actual battery charging. + +[[file:make, 1.png]] + +Back side contains voltage upstep converter that is tuned to convert +5V USB input to 10V output that is required by the charger. + +[[file:make, 2.png]] + +Voltage upstep converter can produce significant voltage +ripples/impulses that travel backwards to the power source and forward +to the changer. To reduce this effect, there are capacitors and +inductor. + +[[file:electrical.png]] + +Front and back sides are connected by wiring at the bottom. Also there +are screws to hold original Baofeng charger pins/springs that connect +to the battery. + +[[file:make, 3.png]] + +After assembly is complete, back, front and bottom parts are sealed +with lid: [[file:cover.png]] diff --git a/misc/Baofeng radio battery charger case mod/make, 1.png b/misc/Baofeng radio battery charger case mod/make, 1.png new file mode 100644 index 0000000..9defb89 Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/make, 1.png differ diff --git a/misc/Baofeng radio battery charger case mod/make, 2.png b/misc/Baofeng radio battery charger case mod/make, 2.png new file mode 100644 index 0000000..0f3640b Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/make, 2.png differ diff --git a/misc/Baofeng radio battery charger case mod/make, 3.png b/misc/Baofeng radio battery charger case mod/make, 3.png new file mode 100644 index 0000000..92fe21d Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/make, 3.png differ diff --git a/misc/Baofeng radio battery charger case mod/make.png b/misc/Baofeng radio battery charger case mod/make.png new file mode 100644 index 0000000..5c47a6a Binary files /dev/null and b/misc/Baofeng radio battery charger case mod/make.png differ