Question

Is a gate signal required when reverse biased?​

Answer 1

Answer:

The thyristor is reverse biased by this voltage and cannot conduct even if a Gate signal is present. So by applying a Gate signal at the appropriate time during the positive half of an AC waveform, the thyristor can be triggered into conduction until the end of the positive half cycle.

Answer 2

Explanation:

The thyristor is reverse biased by this voltage and cannot conduct even if a Gate signal is present. So by applying a Gate signal at the appropriate time during the positive half of an AC waveform, the thyristor can be triggered into conduction until the end of the positive half cycle.