The cheapest mosfet anti spark switch build ever, hopefully

[Gamer43]

It’s the power dissipated in the pulse surge.

I literally have two open source designs available that both have been tested by members and address this problem. Time for me to make a thread.

Some open source antispark designs that work

Since I keep seeing this come up. https://easyeda.com/RuBisCO/On_Switch-2610688072df43d9976cee88fc640fe3 https://easyeda.com/RuBisCO/LowsideSwitch They both work. The first one is easier to assemble on PCB and I trust it a lot more by virtue of high side switching The second one is easy to build on protoboard, no need for a PCB. Both have been tested by members of the community, I can cite their testimony if someone wants. There could still possibly be issues, if someone makes these and en…