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Power-Supply-Unit

Thoric16·Power-Supply-Unit·hardware/PSU.kicad_pcb

Power-Supply-Unit PCB layout, top view — open source RP2040/RP2350 board by Thoric16

About the Power-Supply-Unit PCB

Power-Supply-Unit is an open source RP2040/RP2350 PCB design by Thoric16, published on GitHub. It is a 4-layer board measuring 230 × 60 mm, with 152 components from 29 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the ADS7828 and ACS712xLCTR-30A. By type, the board carries 58 resistors, 24 transistors, 21 connectors, 19 capacitors, 13 diodes and 7 ICs.

It belongs with the power & battery and robotics & motion designs in this gallery.

From the project

A custom-designed robotics Power Supply Unit (PSU) featuring multi-rail buck regulation, remotely switchable outputs, current monitoring, and a hardware E-Stop loop.

A custom-designed, high-reliability Power Supply Unit (PSU) engineered to act as the centralized power management hub and hardware safety backbone for an advanced robotics platform. This board safely bridges high-draw actuator systems with sensitive compute electronics, featuring real-time telemetry and integrated fault protection.

Centralized Voltage Regulation: Features onboard step-down (buck) converters engineered to deliver clean, highly stable regulated voltage rails dedicated to sensitive compute units and sensor payloads. Dynamic Power Routing: Implements remotely switchable outputs…

Power-Supply-Unit, from the project README
From the project README

Main components on the Power-Supply-Unit

ADS7828ACS712xLCTR-30ARaspberryPi_Pico

Power-Supply-Unit bill of materials (BOM)

152 components, 29 distinct parts.

QtyPartRefs
1
ADS7828
U1
6
ACS712xLCTR-30A
U2, U3, U4, U5, U6, U7
1
RaspberryPi_Pico
A1
8
IRLZ44
Q1, Q6, Q9, Q12, Q15, Q18, Q21, Q24
16
MMBT2222A
Q2, Q3, Q4, Q5, Q7, Q8, Q10, Q11 +8
8
XT60PW-F
J1, J3, J10, J12, J14, J16, J18, J20
10
Conn_01x02_Pin
J2, J6, J7, J9, J11, J13, J15, J17 +2
1
XT60PW-M
J4
1
FAN
J5
1
Conn_01x04_Pin
J8
6
01000066Z
F1, F2, F3, F4, F5, F6
1
RGA4W250W020A-001
PS1
1
RBT20W24S05
PS2
1
R_Potentiometer_Trim
RV1
8
LED
D1, D2, D3, D4, D5, D6, D7, D8
5
US1M
D10, D11, D12, D13, D14
1
100u
C1
7
0.1u
C2, C6, C8, C12, C14, C16, C18
1
22u
C3
1
100n
C4
Show 9 more
QtyPartRefs
1
10u
C5
6
1n
C7, C9, C13, C15, C17, C19
2
4.7u
C10, C11
30
10k
R1, R4, R7, R8, R10, R11, R14, R16 +22
16
1k
R2, R3, R13, R15, R22, R24, R27, R29 +8
2
2k
R5, R6
1
47k
R9
1
220k
R12
8
?
R19, R20, R21, R26, R31, R38, R45, R52

Power-Supply-Unit design files

The KiCad project lives in the Thoric16/Power-Supply-Unit repository on GitHub; these links point at the commit this page was built from.

Power-Supply-Unit: common questions

What microcontroller does the Power-Supply-Unit use?

The Power-Supply-Unit is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Power-Supply-Unit PCB?

The Power-Supply-Unit measures 230 × 60 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Power-Supply-Unit?

152 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the Power-Supply-Unit design files?

From the Thoric16/Power-Supply-Unit repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Power-Supply-Unit design in my own project?

The repository has no license, so all rights stay with Thoric16. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Power-Supply-Unit without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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