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Distorted pulses at MOSFET gate in VFD using PWM

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moez

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hellow
I make VFD using PWM. As I connected load with the circuit, the pulses at the gate of the MOSFETS become distorted which actually the output from the PWM.
I also uses gate driver IC for driving the gate.
can anybody helps in finding out the problem.
 

pwm vfd

Do you have a schematic?
 

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