Various aspects of home brew inverters

Author	Message
Warpspeed Guru Joined: 09/08/2007 Location: Australia Posts: 4406	Posted: 07:26pm 25 Mar 2017       That sounds plausible. I have a Danbridge non destructive insulation tester which can test anything for leakage up to 12Kv. But without that, all you can really do, is just short the gate to source and put some dc volts across the drain to source, with a high value current limiting resistor. If it breaks down, you know it was a dud. Pretty much the same with the gate. Test it up to about 20v and see if it survives. You might trash a few devices that way, but that is better than having one sub standard mosfet blow up multiple other good ones. Cheers,  Tony.