Tool/software:
The difference between case 1 and case 2 with open circuit output lies in whether the output capacitance is large or small. How to determine whether the output capacitance is large or small, and is there a range of capacitance values.
Case 3: How to understand the high input voltage here, how much higher it is compared to the normal input voltage, and is there a definite voltage value. What causes the depletion of gate to drain charges in a bootstrap capacitor.
