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Breadboard power supply with variable voltage output
This project is ideal for breadboard power supply so that different output voltages can be configured for other circuits.
The main power connector is USB type C, with which the PD fast charging protocol is implemented. The voltage output is provided by the header connectors J1, J2, J3, and J4.
With the Dip Switch SW1, you can configure the different supply voltages according to the configuration table of the CH224K integrated. Different voltages power the D1 indicator, so its brightness will vary depending on the voltage configured on the power supply.
Demonstration video:

Breadboard power supply with variable voltage output
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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Peter Ashton
Sep 22,2025
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Engineer
Jun 27,2025
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Engineer
Jan 06,2025
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Engineer
Nov 23,2024
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Engineer
Oct 13,2024
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Engineer
Aug 08,2024
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Engineer
Jul 19,2024
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Engineer
Jun 16,2024
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Massimiliano Spoto
May 14,2024
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Engineer
Jan 24,2024
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Ismael Sanchez
Dec 29,2023
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Engineer
Dec 28,2023
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Im' Peer
Dec 16,2023
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Ariel Henriquez
Nov 28,2023
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Manny Peralta
Nov 28,2023
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Emilenny Gonzales
Nov 28,2023
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Emely Olivares
Nov 28,2023
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Juan Urbano
Nov 27,2023
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Alex Shaw
Nov 27,2023
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Engineer
Oct 23,2023
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Hamza Köse
Oct 22,2023
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Engineer
Oct 21,2023
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Engineer
Oct 16,2023
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LuckSkyGyver
Oct 16,2023
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Wandy Amaury
Oct 15,2023
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