Power Electronics An SCR is considered to be a semi controlled device because it can be turned ON only during one half cycle of an AC. it can be turned ON but not OFF with a gate pulse. it conducts only during one half cycle of an alternating current wave. it can be turned OFF but not ON with a gate pulse. it can be turned ON only during one half cycle of an AC. it can be turned ON but not OFF with a gate pulse. it conducts only during one half cycle of an alternating current wave. it can be turned OFF but not ON with a gate pulse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Thyristor can be protected from over voltages by using fuse. heat sink. voltage clamping device. snubber circuit. fuse. heat sink. voltage clamping device. snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac has ___________ semiconductor layers. Three Five Four Two Three Five Four Two ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which following is a two terminal three layer device? None of above. MOSFET. Power dioed. BJT. None of above. MOSFET. Power dioed. BJT. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics ON state voltage drop across SCR lie between the range 1.5 - 2 V. 0.5 - 1 V. 1 - 1.5 V. 0 - 0.5 V. 1.5 - 2 V. 0.5 - 1 V. 1 - 1.5 V. 0 - 0.5 V. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is 135 μs. 145 μs. 140 μs. 130 μs. 135 μs. 145 μs. 140 μs. 130 μs. ANSWER DOWNLOAD EXAMIANS APP
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