When testing the circuit, the customer found that when HI(pin2) and LI(pin3) have PWM input signal, there was no waveform at TP161 (pin-HO) and TP149 (pin-LO). When he set pin-HI to a low level for a while, the voltage at pin-HO is measured to be about 3V. Among them, in the actual test C22 is 100nF.
Could you please help to solve the problem?
Thank you very much!