Ignition coil for flashtubes as HV transformer? I want to make a few hundred volts at very low current, a few uA. These trigger tubes for flash tubes seem to do 200V in 4000V out, by discharging a cap in the primary. They are dirt cheap here. So the transformer ratio is 1 : 20. I am thinking about PWMing one to make 500 V peak from 5 V DC. As I do not have one yet, does anybody know the inductance of these things? I used one a hundred years ago in a flash tube trigger circuit... Should have measured it..
- posted
12 years ago