/diy/ - Do It Yourself

I've made an over current protection circuit that measures low side but cuts high side. The idea is that when the comparator goes low the M1 Pfet turns on for a bit and charges the C2 cap to a higher voltage than the reference to give it some backoff time while dischargeing the cap, but it doesn't reset and also oscillates. I've built another variant of pic related without C1 that just latches and has a reset curcuit and it works well, but it feels like it could be simplified. Anybody have any ideas? Nevermind the high-side pfet driver and the specific components. I just threw it up and i couldn't be bothered to put in the proper circuit that i allready have.