2 layers74.4 × 51.2 mm
Esp32-wroom timer
AlessandroAU/Chorus32-ESP32LapTimer
This is an ESP32 port of the popular Chorus RF Laptimer
66 parts102GPL-3.0
2 layers32.1 × 15.3 mm
Power Supply
TanujRai14/Task_4In this 5V power supply PCB design, I have implemented a single ground plane approach to ensure minimal noise and better return paths.
- Size
- 32.1 × 15.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 3
- Pads
- 14
- Tracks, vias
- 37, 4
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Jul 2025
- Updated
- 11 Jul 2025
Overview
Power Supply is an open-source printed circuit board by TanujRai14, from the TanujRai14/Task_4 repository on GitHub. It is a 2-layer board of 32.1 × 15.3 mm with 6 parts on 3 nets, routed with 37 tracks and 4 vias.
It is built around the AMS1117. Its parts include 2 capacitors, 2 connectors, 1 IC and 1 diode. It belongs with the power boards of this library.
Main components
1README
README.mdIn this 5V power supply PCB design, I have implemented a single ground plane approach to ensure minimal noise and better return paths. All GND connections were routed through a dedicated polygon pour (zone) on the front layer, ensuring low impedance grounding across the board.
To connect ground pins from different locations to the main GND plane, I used vias with 0.7 mm diameter and 0.5 mm drill size, providing solid vertical connections between layers. The track width used throughout the layout is 0.3 mm, which is suitable for the expected current flow of up to 1–1.5 A.
The design successfully passed all Design Rule Checks (DRC), with no errors or unconnected items, confirming the integrity of the routing and electrical connectivity.
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x02_Pin | Connector:JWT_A3963_1x02_P3.96mm_Vertical | J1, J2 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 22uF | Capacitor_SMD:C_1210_3225Metric | C2 |
| 1 | AMS1117 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
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Questions
How big is the Power Supply PCB?
It measures 32.1 × 15.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Power Supply use?
6 parts, built around the AMS1117. 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 TanujRai14/Task_4 repository on GitHub, at the commit this page was made from: the board is Power_Supply.kicad_pcb. 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 TanujRai14 before reusing the design.