Nano Power Inverter - Roll Your Own Style

Author	Message
Warpspeed Guru Joined: 09/08/2007 Location: Australia Posts: 4406	Posted: 10:23pm 14 May 2019       This all looks very good Mike. I originally used pulse transformers for generating the isolated gate driver voltages the same way you are doing. I found it difficult to control the final dc voltage on the isolated side. Overshoot or ringing on the secondaries of the transformer would sometimes produce some worryingly high dc voltages. I managed to fix all that by using full wave rectification, and a suitable zener. It then all ended up working much more predictably. Cheers,  Tony.