Question

The SCS (Silicon Controlled Switch) can be turned on by two methods, by applying __________ and __________

(a) positive pulse to the anode gate, positive pulse to the cathode gate

(b) positive pulse to the anode gate, negative pulse to the cathode gate

(c) negative pulse to the anode gate, positive pulse to the cathode gate

(d) negative pulse to the anode gate, negative pulse to the cathode gate

I had been asked this question in an online quiz.

I would like to ask this question from Other Thyristor Members-1 topic in chapter Power Electronics Devices of Power Electronics

Answer 1

The correct answer is (c) negative pulse to the anode gate, positive pulse to the cathode gate

For explanation I would say: Either of the gates could be used to turn on the device.