High-Side output of IR21094 Gate Driver does not switch
The high side relies on the boost converter to generate the gate voltage. The boost converter uses the switched output to charge the boost capacitor - your circuit has a load of 100k which does not provide enough current for this. Reduce the resistance to 1k or less - a value that represents the expected load. As well, your pwm frequency has to be high enough and the duty cycle &gt; 0 and &lt; 100% in order for the boost capacitor to gain adequate charge. In reality, do not use a 1N4007 diode - way too slow. Something like a UF4007 is more suitable.