inductive spiking

[joblessalex]

Simple quick question(maybe). If you switch an inductive load with a transistor or fet, you get a spike.  Is it possible to somehow capture this spike and store it in a capacitor? I'm thinking hv generator in a very small package here. All the attempts I made ended up in dead shorts.... So, is this possible? Think low current, high voltage.

[Psi]

That's exactly what a switchmode boost converter is.

http://www.instructables.com/id/High-Voltage-Switch-Mode-Power-Supply-SMPSBoost/




How many volts do you want to get out of it?
A high frequency transformer maybe more suitable and smaller if you want really high voltages.
Or perhaps a combination of either plus a tiny inverter and diode/cap multiplier.

[joblessalex]

That's exactly what a switchmode boost converter is.

http://www.instructables.com/id/High-Voltage-Switch-Mode-Power-Supply-SMPSBoost/




How many volts do you want to get out of it?

Argh! I knew I was missing something major here. I was looking around the 300-400 volt  range. Just something to experiment with. If it is possible, 1000-2000 would be nice as well, then add a multiplier to it.