Hello! My name is Tom and I would really appreciate if someone could shed some clarity on these particular driver circuits, I've tried searching but can find no definitive answers.
The goal is a compact 200w 10kv DC power supply powered by battery source.
As i understand it a true flyback is driven by a high frequency dc square wave, the secondary coil will have a diode in series with the output, so when primary is on energy is not transferred to the secondary because of the diode, it is stored in the ferrite core, on the rapid primary switch off the field collapses, primary is now open circuit all energy is transferred to the secondary through the now conducting diode.
This results in a high frequency pulsed DC output.
However I would like to use a zvs driver circuit because of the relative simplicity, hi power capabilitys and operating at the coils own resonant frequency.
This is where I am having a issue in understanding, I believe these are not actually a flyback driver at all. Using a push pull topology surely means that the primary is fed an AC square wave at high frequencies resulting in the secondary outputting AC surely, as in a standard transformer?
So my questions are will putting a diode on the secondary chop half the power on a zvs driver and is a full Bridge rectifier required to obtain full power DC from these drivers. Also if it is operating as a normal AC transformer how is the high voltage obtained and why does it not follow the normal transformer winding turns rule?
I've had great enjoyment in learning about Transformers and driver circuitry, I think I've grasp the concept now but please help me if I'm getting something wrong here. Many thanks Tom
The goal is a compact 200w 10kv DC power supply powered by battery source.
As i understand it a true flyback is driven by a high frequency dc square wave, the secondary coil will have a diode in series with the output, so when primary is on energy is not transferred to the secondary because of the diode, it is stored in the ferrite core, on the rapid primary switch off the field collapses, primary is now open circuit all energy is transferred to the secondary through the now conducting diode.
This results in a high frequency pulsed DC output.
However I would like to use a zvs driver circuit because of the relative simplicity, hi power capabilitys and operating at the coils own resonant frequency.
This is where I am having a issue in understanding, I believe these are not actually a flyback driver at all. Using a push pull topology surely means that the primary is fed an AC square wave at high frequencies resulting in the secondary outputting AC surely, as in a standard transformer?
So my questions are will putting a diode on the secondary chop half the power on a zvs driver and is a full Bridge rectifier required to obtain full power DC from these drivers. Also if it is operating as a normal AC transformer how is the high voltage obtained and why does it not follow the normal transformer winding turns rule?
I've had great enjoyment in learning about Transformers and driver circuitry, I think I've grasp the concept now but please help me if I'm getting something wrong here. Many thanks Tom