Hao Jie Chan's Kingdom: October 2016
SD Wing Zero Custom is done! Click here to check it out!

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built of paper.

Sunday, October 30, 2016

Arduino Uninterruptible Power Supply (UPS) Improved

A reader left a comment on my UPS post, he asked me to share the ‘improved’ design.

I would not really categorise it as an ‘improved’ design because I simply removed the P-MOSFET.

I also added a switch when they would not want the Arduino to be powered on.

Schematic

Arduino UPS

The UPS was meant to power up an Arduino Nano, from USB or a Li-Ion Battery.

I hope this blogpost will be helpful for anyone doing a small UPS for Arduino. Cheers

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Author: Chan HJ
An enthusiast in papercraft. Paper model designing sounds fun too! More about me at my Blog Bio or

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