It uses full nmos, full bootstrapping, the MOS tube is IRFZ44NPBF, and the main control is stc15w408as;
it has not been tested on the board. Please note: the voltage resistance value of the bootstrap capacitor needs to be more than 2 times VCC, otherwise it will breakdown.
Simulation bootstrapping is valid:
Original post address: https://oshwhub.com/liujie051122/LOLIwu-shua-dian-diao
Reference address: http://www.moz8.com/forum.php?mod=viewthread&tid=144287
Rlease note: 2020/11/17: REV01; DIP full N tube, full bootstrap 2021/01/05: REV01; Use cheaper SMD high current N tube
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