This is a schematic diagram of 0-30V/0-3A dual DC adjustable constant voltage constant current electric power that I personally painted many years ago. It is a company's export product. Due to the company's technical secrets, the map cannot be placed. Very large, but completely true of the principle of the product, a full picture, interested can analyze.
Crystal Clear Back Sticker,Phone Sticker,Mobile Phone Back Skin,Crystal Clear Phone Skin
Shenzhen Jianjiantong Technology Co., Ltd. , https://www.jjtbackskin.com