ECE :: Power Electronics
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As compared to a p-n junction diode
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From which instant is the turn off time of a thyristor defined
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In a single phase cycloconverter with centre tapped transformer
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If Ar and Ac are the amplitudes of reference and control signals, the modulation index M is
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Thyristors can be used for control of
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Assertion (A): Thyristors can be used in controlled heating, excitation systems of alternators, speed control of motors and HVDC
Reason (R): A static var system using thyristors is very commonly used in high voltage ac systems.
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In a dual converter operated in circulating current mode, the circulating current flows
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For a single phase half wave converter feeding a resistive load, the firing angle a. The waveshape in below figure is for
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In a full bridge circuit supplying an RLC under damped circuit
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A.
a schottky diode has lower cut in voltage and lower reverse saturation current
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B.
a schottky diode has higher cut in voltage and higher reverse saturation current
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C.
a Schottky diode has lower cut in voltage and higher reverse saturation current
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D.
a schottky diode has higher cut in voltage and lower reverse saturation current
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