Universal step-up and step-down converter

Best PCB prototype ($2 for 10 boards): https://jlcpcb.com
Download archive http://www.kit-shop.org/zip/pov.zip
Buy DC-DC step-up inverter http://got.by/2jhb9r
DC-DC step-down inverter http://got.by/2jhbd9

IRFZ44 http://got.by/2jhbpi

UC3843 http://got.by/2jhbrn

600pcs resistors http://got.by/2jhbvc

7812 http://got.by/2juj3c

Capicators http://got.by/2juj4w

The video Li-ion battery https://youtu.be/xNyhqNIADB0

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Russian version https://youtu.be/ciW75F-g5hM

Видео Universal step-up and step-down converter канала Kasyan TV