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Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
The problem with using mains inductance is that the voltage dropped across it also affects the trigger signal. This can cause instability when the load is a large capacitor bank, as I explained earlier.
Besides stabilising the circuit and making triggering less critical, the inductor also improves the power factor considerably.
Sure, I understand. A clean trigger was indeed somewhat critical to obtain already in my design and needed me to revise the circuitry a couple of times.
I will balance your design, which is for sure the easiest and safest way, with respect to developing a PWM converter.
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Electronic variac for (DR)SSTCs
