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Induction heater waveform gets fuzzy

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LAN_403

IamSmooth

Mon Mar 08 2010, 04:07AM

Registered Member #190 Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567

I am trying a lower capacitance for my voltage doubler which supplies the HV to my induction heater inverter. At resonance, when the current draw is the most, the signal goes from a clean waveform to a fuzzy one. The frequency is the same, but there is a fuzzy envelope of a high and low amplitude signal. I am guessing this is the result of a ripple voltage.

What can I do? Do I need a second stage capacitor filter? Ignore it if it won't affect the circuit?

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