I need to build a simple power supply.

dcbingaman

Joined Jun 30, 2021
1,065
You obviously didn’t read the thread, a wall wart won’t fit within 1 cubic inch. If it were that simple I wouldn’t be here.
It does not have to, it plugs into the wall outlet. Unless of course there is not room from the wall outlet to the project. I agree with the other threads, it sounds like you should not be doing this for safety reasons.
 

Audioguru again

Joined Oct 21, 2019
6,672
The 5VDC/1A power supply I got cheaply from The Dollar Store has folding AC prongs so that it is portable and in is a small cube that measures 1+3/8" x 1+3/8" x 1+1/4" and its output is a USB jack.
 

sghioto

Joined Dec 31, 2017
5,376
Obviously that won't fit in a 1 inch cubic space but if you can remove the circuit board from the case it might fit.
I got this USB supply from the Goodwill.
Board size is 1 inch x 1inch x 5/8 inch.
 

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