Various aspects of home brew inverters

Author	Message
poida Guru Joined: 02/02/2017 Location: Australia Posts: 1440	Posted: 08:57am 02 Mar 2019         mackoffgrid said   Poida I am about to try a different drive circuit where I clamp the gate to -5 or -12 volts. The reason I'm doing this is that it will take a lot more charge from Cgd before Cgs charges up to its threshold voltage. Yes, biasing the gate drive to -5 or so volts is the best way to go. We need a drive that has a low output of -5V and a high output of +15 all with respect to the FET's Source pin. That will reduce to nearly zero the shoot through. How to do it... Some designs I've seen use pulse transformers with a DC negative bias applied to the output. Others don't use the pulse transformers at all. wronger than a phone book full of wrong phone numbers