2 layers70.5 × 40 mm
2 layers68 × 38.5 mm
ACtoDC
jh-emon002/PCBsHere, I will be posting my designed PCBs.
- Size
- 68 × 38.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 5
- Pads
- 20
- Tracks, vias
- 22, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 27 Jun 2026
- Updated
- 6 Jul 2026
Overview
ACtoDC is an open-source printed circuit board by jh-emon002, from the jh-emon002/PCBs repository on GitHub. It is a 2-layer board of 68 × 38.5 mm with 12 parts on 5 nets, routed with 22 tracks and 0 vias.
Its parts include 5 diodes, 2 resistors, 2 connectors and 1 capacitor.
README
README.mdImages of the PCBs
1. AC to DC converter
A simple full bridge diode rectifier with smoothing capacitor and an indicator LED. It takes AC input in one side and outputs DC in the another.
2. Transformerless Power Supply
A 70x40 mm PCB that takes 110-220V AC at one side and outputs a stable 5V DC at another terminal. As there is no transformer, the circuit is compact and cheap.
3. Servo motor tester
A PCB that can be used to test servo motors using PWM signal controlled by a potentiometer.
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4 |
| 2 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1, J2 |
| 1 | 1000uF | Capacitor_THT:CP_Radial_D8.0mm_P3.80mm | C1 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 |
| 1 | 2.2k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1 |
| 1 | LED | LED_THT:LED_D5.0mm | D5 |
The 10 most common of 12 parts.
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Questions
How big is the ACtoDC PCB?
It measures 68 × 38.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ACtoDC use?
12 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ACtoDC KiCad files?
From the jh-emon002/PCBs repository on GitHub, at the commit this page was made from: the board is AC to DC converter/ACtoDC.kicad_pcb and its schematic AC to DC converter/ACtoDC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ACtoDC design in my own project?
Its repository states no licence, so its author keeps all rights: ask jh-emon002 before reusing the design.