Solar Mike Guru
Joined: 08/02/2015 Location: New ZealandPosts: 1138 |
Posted: 08:24pm 13 Mar 2019 |
|
|
|
Great work there Poida. To minimize the HF gate oscillations try placing a ferrite bead over each of the mosfet gate leads, or use a smd ferrite bead on the pcb at the gate connection, high current ones are available from element14 #2292371 that will handle the 8amp drive current pulses. Better yet is to have a totem pole buffer driver on each mosfet, this achieves better off signal clamping and helps prevent any shoot through, I use the ZXGD3005, they are only 50c each, need a magnifying glass to solder them though..
Cheers Mike |