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SCR is a__________ device.(a) Uncontrolled(b) Semi-controlled(c) Fully controlled(d) VoltageThis question was addressed to me in an interview for internship.I'd like to ask this question from Solid-State Devices topic in section Introduction to Solid-State Devices of Electric Drives

Answer»

The correct CHOICE is (b) Semi-controlled

The best I can explain: The SCR is a semi-controlled device. Turn-on time can be controlled by using a gate PULSE but COMMUTATION circuit is required to turn off the device.



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