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half bridge series resonant inverter

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fancy_kyme

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Hi, I am simulating a driver circuit(IR2110) to control and amplify the input voltage in Power Mosfets. My switching frequency is 37kHz and the output is 100W. The problem of my circuit is that during turn on of the Mosfets, there is a ringing at both of the output. How could i solve this problem?
Thanks a lot.
hbridge series resonant inverter.PNG37kHz.PNG
 

Your output stage is an LC 2nd order butterworth filter. This needs a load attached, or else it causes unexpected and unpredictable behavior.

Try a different switching frequency, to see if the ringing waveform changes.
 

What is I1? Are you really supplying the DC bus with a current source? That's weird.
 

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