2 layers150 × 135 mm
Smart Parking System
chdsolinap/ece-projects
ECE hardware and electronics projects — PCB design, circuit prototypes, and embedded systems built at PLM.
54 parts
2 layers118.5 × 75 mm
Power Supply
chdsolinap/ece-projectsECE hardware and electronics projects — PCB design, circuit prototypes, and embedded systems built at PLM.
- Size
- 118.5 × 75 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 11
- Pads
- 50
- Tracks, vias
- 213, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 May 2026
- Updated
- 13 Jun 2026
Overview
Power Supply is an open-source printed circuit board by chdsolinap, from the chdsolinap/ece-projects repository on GitHub. It is a 2-layer board of 118.5 × 75 mm with 24 parts on 11 nets, routed with 213 tracks and 0 vias.
It is built around the LM317. Its parts include 8 capacitors, 4 diodes, 2 resistors, 2 ICs and 2 connectors. It belongs with the power boards of this library.
Main components
1README
README.mdHardware and electronics projects from my ECE coursework at PLM.
Covers PCB fabrication, analog circuit design, combinational logic,
and embedded systems — built and tested as functional prototypes.
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad | H1, H2, H3, H4 |
| 2 | 100 µF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C5, C6 |
| 2 | 2.2 µF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C7, C8 |
| 2 | 2.2 µF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C3, C4 |
| 2 | 220 Ω | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 2 | 2200 µF | Capacitor_THT:CP_Radial_D18.0mm_P7.50mm | C1, C2 |
| 2 | 5k Ω | Potentiometer_THT:Potentiometer_Vishay_T93XA_Horizontal | RV1, RV2 |
| 2 | Screw_Terminal | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3_1x03_P5.00mm_Horizontal | J1, J3 |
| 1 | LM317 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | LM337 | Package_TO_SOT_THT:TO-220-3_Vertical | U2 |
Questions
How big is the Power Supply PCB?
It measures 118.5 × 75 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Power Supply use?
24 parts, built around the LM317. 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 Power Supply KiCad files?
From the chdsolinap/ece-projects repository on GitHub, at the commit this page was made from: the board is Dual Adjustable Power Supply/Adjustable_30V_Regulated_Dual_Polarity_Linear_Power_Supply/PCB_KiCAD-files/Power Supply.kicad_pcb and its schematic 4-bit Full Adder/4_bit_full_adder_pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Power Supply design in my own project?
Its repository states no licence, so its author keeps all rights: ask chdsolinap before reusing the design.
More from chdsolinap/ece-projects
6- 2 layers150 × 100 mm
100W 30V Amplifier Circuit
chdsolinap/ece-projects
ECE hardware and electronics projects — PCB design, circuit prototypes, and embedded systems built at PLM.
51 parts - 2 layers52.2 × 60 mm
Preamplifier
chdsolinap/ece-projects
ECE hardware and electronics projects — PCB design, circuit prototypes, and embedded systems built at PLM.
18 parts - 2 layers135 × 79.6 mm
4 bit full adder pcb
chdsolinap/ece-projects
ECE hardware and electronics projects — PCB design, circuit prototypes, and embedded systems built at PLM.
17 parts - 2 layers83 × 90 mm
Amplifier Power Supply
chdsolinap/ece-projects
ECE hardware and electronics projects — PCB design, circuit prototypes, and embedded systems built at PLM.
12 parts - 2 layers59.5 × 49.9 mm
Preamplifier with PS
chdsolinap/ece-projects
ECE hardware and electronics projects — PCB design, circuit prototypes, and embedded systems built at PLM.
11 parts
Similar boards
- 2 layers70 × 50 mm
S88iso
GBert/railroad
git clone https://github.com/arendst/Tasmota.git cd Tasmota git tag pio run
33 parts36 - 2 layers100 × 35 mm
Two comparator effect
cyberboy666/two_comparator_effect
analog video posterisation effect - adapted from a rob schafer design
34 parts15GPL-3.0 - 2 layers
Alim10o
acmo0/PedalBoard-Power-Supply-Diy
This is a description of pedalboard power supplies that I designed an made. I use this power supplies, they are fully working. Pay attention : they are made for 230VAC.
110 parts14GPL-3.0 - 2 layers32 × 42 mm
- 2 layers300 × 90 mm
Preamp
profdc9/PrettyGoodPreamplifier
A Pretty Good Preamplifier for Stereo and Subwoofer Use
222 parts10 - 2 layers120 × 50 mm
Audioswitch
zehome/autoaudioswitcher
OSHW: Automatic audio input switcher based on audio activity
80 parts10BSD-3-Clause - 2 layers30 × 128.5 mm
Kwantizer
benjiaomodular/Kwantizer
[WIP] An Arduino-based CV quantizer for Eurorack modular synthesizers
32 parts7 - 2 layers110 × 92.7 mm
Yaacwk
federicobriata/iz1glg_yaacw_keyer
YAACWK, Yet Another Arduino CW Keyer, the cheapest HW stuff compatible with K3ng keyer software ( https://github.com/k3ng/k3ng_cw_keyer ). This project contain Eagle project and library of YAACWK.
87 parts7CC-BY-SA-4.0