Which statement about the gain of variable frequency PWM is correct?

1. A Option A: Phase lead helps to increase the phase margin of the control loop
2. B Option B: Phase lag helps to decrease the phase margin of the control loop
3. C Option C: Phase lead helps to decrease the phase margin of the control loop
4. D Option D: Phase lag helps to increase the phase margin of the control loop

Answer checked 11 October 2026 · How we write and check questions