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Registered Member #834
Joined: Tue Jun 12 2007, 10:57PM
Location: Brazil
Posts: 644
You can always use the core of another flyback transformer and wind the series inductor on it. It has a gap and has the same ratings of the flyback transformer core.
I built a very reliable adjustable UH power supply based around the zvs circuit and i haven't had a single mosfets failure which is surprising since it as regulated by a PWM with only small input and output caps at around 40 volts input
Registered Member #4860
Joined: Fri May 11 2012, 04:42PM
Location:
Posts: 13
Ok, quick update. I've replaced the toroid with a same-sized iron powder one (which is 47uH), and so far the circuit is running beautifully at 24V. The size and current of these arcs is really impressive compared to anything I've ever had out of a flyback before.
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ZVS IRFP250 catastrophic failure
