Hello Louis,
The reason why segments are exceeding the 33.3us is because at the moment the internal PWM clock began a new cycle, the current has not reached the chopping limit. Since the drive cycle begins at the start of the PWM clock, the current may take longer until it reaches the regulation limit but the PWM frequency will still be 30kHz.
Hence, your capture analyzes the current behavior but it doesn't represent the PWM frequency of the internal clock if that makes sense. Thank you.
The reason why segments are exceeding the 33.3us is because at the moment the internal PWM clock began a new cycle, the current has not reached the chopping limit. Since the drive cycle begins at the start of the PWM clock, the current may take longer until it reaches the regulation limit but the PWM frequency will still be 30kHz.
Hence, your capture analyzes the current behavior but it doesn't represent the PWM frequency of the internal clock if that makes sense. Thank you.