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For effective turning off of the SCR after the anode current has reached zero value, ______________

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in Power Electronics by (27.1k points)
For effective turning off of the SCR after the anode current has reached zero value, ______________

(a) chargers are injected by applying reverse anode-cathode voltage

(b) chargers are removed by applying reverse anode-cathode voltage

(c) chargers are injected by applying gate signal

(d) chargers are removed by applying gate signal

This question was posed to me in a national level competition.

The doubt is from Thyristors-3 topic in chapter Power Electronics Devices of Power Electronics

1 Answer

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by (45.1k points)
Right answer is (b) chargers are removed by applying reverse anode-cathode voltage

The best explanation: To enable the device to regain its reverse blocking capabilities, the stored charges in the junctions of the SCR must be removed.

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