28-06-2024, 08:01 AM
Yes. I've used gate drivers, but first I'm trying to do it with what I have.
The 2N5401 & MPSA05 gate driver isn't bad, but is only a buffer. A regular logic Schmitt trigger hasn't the o/p swing and any of my comparators are too slow. So meanwhile I'll put an IRF510 instead of the IRF1404Z (lower drive voltage and only 160 pF gate). The previous IRF1404Z is about 8 nF in the datasheet though statically measures at about 6700 pF on the component tester and really needs more drive than a buffer running off 5V (which doesn't give 5V drive).
I may need to order a gate driver. Likely someone does one with the opto-coupler built in!
The 2N5401 & MPSA05 gate driver isn't bad, but is only a buffer. A regular logic Schmitt trigger hasn't the o/p swing and any of my comparators are too slow. So meanwhile I'll put an IRF510 instead of the IRF1404Z (lower drive voltage and only 160 pF gate). The previous IRF1404Z is about 8 nF in the datasheet though statically measures at about 6700 pF on the component tester and really needs more drive than a buffer running off 5V (which doesn't give 5V drive).
I may need to order a gate driver. Likely someone does one with the opto-coupler built in!
