I am planning to use a zvs capacitor charger set at 250VDC to charge a capacitor. The capacitor, 330VDC, 95uF, is to be discharged via an optocoupler which is controlled by a 555 timer at 1Hz. The optocoupler (undetermined as yet) will discharge the voltage from the capacitor to a coil going directly to ground to generate an EMF. The opto. and the coil will have minimal resistance. I have a couple of concerns.
1) At start up of this circuit for example, the cap is at zero volts, and the opto. is energized. At that instant, could this create a dead short through the circuit and burn out both the zvs and the opto. ? I have seen circuits and schematics which have no provisions to address this concern.
2) Power and heat dissipation. It is my understanding that there is no current flow when the cap. is charging, however, at discharge, there is current. This would necessitate knowing what the current will be and the need for some type of heat sink for the opto. Again, I have seen circuits etc. delivering these levels of voltage through capacitors without employing heat sinks etc.
Any help would be greatly appreciated.
1) At start up of this circuit for example, the cap is at zero volts, and the opto. is energized. At that instant, could this create a dead short through the circuit and burn out both the zvs and the opto. ? I have seen circuits and schematics which have no provisions to address this concern.
2) Power and heat dissipation. It is my understanding that there is no current flow when the cap. is charging, however, at discharge, there is current. This would necessitate knowing what the current will be and the need for some type of heat sink for the opto. Again, I have seen circuits etc. delivering these levels of voltage through capacitors without employing heat sinks etc.
Any help would be greatly appreciated.