No match between input signal of a gate driver ( from simscape electrical) and the ouputs signals

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Andriantsilavo Ramaroson
回答： Sabin 2025-6-30
Hello,
I have a issues about the component "gate driver" from simscape electrical. I try to simulate a gate driver behavior with a capacitor as load. In input I have a PWM of a sinus signal and I expect to have the same shape in the output but I juste have a square signal with another frequency, no square signal which follow the shape a PWM of sinus signal. You can see the resuslt in attachement.
So If someone can have idea what parameters I forget to configurate correctly the gate driver ?
Thank you
  1 个评论
Epsilon
Epsilon 2025-5-6
I tried the same block configuration and got the expected behaviour. There might be something wrong with the defined block parameters. Do consider sharing the model to help us debug it better.

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回答（1 个）

Sabin
Sabin 2025-6-30
Without the model to be able to see the exact parameterization used in each block is difficult to point to the exact root cause. However, a very likely cause is the sampling in the Zero-Order Hold block. If the sample time is not correct, the result will be an undersampled gate driver and waveforms similar to what you are showing.

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