Guru
Joined: 07/07/2008
Location: AustraliaPosts: 423
| Posted: 02:51am 01 May 2021 |
This is a great discussion guys.... I had a heap of problems driving my IGBTs and ended up "solving" the gate bounce issues with 82nf caps on the gates. Not an elegant solution.
I'm going to re-visit my solution based on the info I have picked up here. To save re-manufacturing some large PCBs I want to make up some very small piggyback boards to fit between the existing gate driver chips and the igbt gates.
The ZXGD3005 looks good. It's a totem pole 9A driver with separate source and sink pins. I think Solar Mike recommended them in another thread.
Wiseguy, do you suggest 4R7 resistors for both charging and discharging the gate?
What sort of inductor do you use for the gate lead?
