Dilshan Jayakody
Published © CC BY

12V Uninterruptible Power Supply

A simple and fully automatic, 12V uninterruptible power supply system for small/medium power appliances.

IntermediateFull instructions provided9 hours748
12V Uninterruptible Power Supply

Things used in this project

Hardware components

ON Semiconductor LM350T
×1
Microchip Technology PIC16F688
×1
PC817
×1
Texas Instruments LM2576T-12
×1
Linear Regulator (7805)
Linear Regulator (7805)
×1
ON Semiconductor BC547
×1
ON Semiconductor BC548
×1
STMicroelectronics BD135
×1
Omron Electronic Components LLC G2R-2 12DC Relay
×1
SparkFun USB to Serial Breakout - FT232RL
SparkFun USB to Serial Breakout - FT232RL
×1

Software apps and online services

MPLAB X IDE
Microchip Technology MPLAB X IDE

Story

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Schematics

Schematic of the 12V UPS system

Code

GitHub repository

This project repository contains all the schematic, KiCAD PCB design files, firmware source codes, and compiled binaries.

Credits

Dilshan Jayakody

Dilshan Jayakody

15 projects • 16 followers
Hello, I'm an embedded systems engineer, amateur radio operator and amateur astronomer.

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