ECE :: Power Electronics
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The commutation method in an inverter, is
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Inverters find applications in
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When a thyristor is conducting, the voltage drop across it is about
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The use of free wheeling diode in controlled rectifier improves the waveshape of load current.
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As the firing of a thyristor is delayed, the output voltage of a controlled rectifier decreases.
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Assertion (A): A GTO can be turned on and turned off by gate pulses
Reason (R): A GTO can be turned off by negative gate pulse.
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In a half bridge inverter circuit fed by a battery of voltage V, the rms value of fundamental component of output voltage is
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In a full bridge single phase inverter feeding RLC load
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It is possible to use a freewheeling diode in
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Assertion (A): When the anode current of an SCR starts increasing during turn on process, the anode cathode voltage drop starts decreasing.
Reason (R): During turn on the reverse biased junction in SCR breaksdown.
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A.
single phase half wave controlled rectifier as well as in single phase full wave controlled rectifier (M - 2 connection)
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B.
single phase half wave controlled rectifier but not in single phase full wave controlled rectifier (M - 2 connection)
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C.
single phase full wave controlled rectifier (M - 2 connection) but not in single phase half wave controlled rectifier
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D.
all controlled rectifier circuits
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