flyback diode

I am pulsing a 38mH coil (16 AWG wire wrapped around a small tube) with a IRFB4115pbf MOSFET at 66.6v (3 lipo 5200mAH "50C" battery's in series). It's a lot of juice! Using Lt spice I simulated this and found that the voltage spikes can reach up to 20kv. I am trying to figure out if I should use...

Hi Can just put a diode in reverse bias in parallel with PSU out put to protected PSU from the load flyback voltage? Thanks

Hello, My battery powered hair clipper has not enough power for my purposes. Therefore, I decided to remove the battery in order to get a larger DC Motor in it. I have already made a modification of the case and installed the new DC motor properly. Here are some stats of the new DC Motor...

I am working on a motor project and I have very large inductors that will possibly need flyback diodes, but my inductors also change polarity. So a regular diode would just create a short in the other direction wouldn't it? So how do I deal with that? Do I have two flyback circuits(one going...

Hello! I need to decide what I should understand/learn to go ahead with my boost converter and stop killing my MOSFETS in the wild. I'm not a engineer (at least not one of the 'right type') and electronics is just a hobby. I have a boost converter that's basically scheme.jpg (MOSFETS are...