Meet the tiny USB power supply

A project log for Fire Fly UVC Mini 3W Sanitizer / Curing Lamp

Fire Fly Mini UV Handheld USB Powered Disinfection and Rapid UV curing lamp combines small form factor, cost efficiency and 3d printing.

josh-starnesJosh Starnes 07/08/2020 at 02:170 Comments

This is a micro usb stop up converter from amazon, then I added two capacitors to solder in parallel with the in and out connections. The variable resistor trims the voltage up or down I think up to 20 volts and min 2 volts above input voltage.