ECE :: Power Electronics
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In a single phase full wave ac regulator feeding R-L load, the gate pulses
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In a semi converter feeding a resistive load,
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A dc chopper is feeding an RLE load. The current can become discontinuous if
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A single phase half wave rectifier is feeding a resistive load. As firing angle is increased
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A cycloconverter for single phase operation has
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The difference between resonant commutation and self commutation is
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If 0.5 T is the time period of oscillations and Toff is the time between turn off of one thyristor and turn on of second thyristor, the frequency of output f of a series inverter is
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A.
the waveshapes of input voltage and input current are always similar
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B.
the waveshapes of input voltage and input current can never be similar
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C.
the waveshapes of input voltage and input current are similar only if firing angle is zero
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D.
the waveshapes of input voltage and input current are similar only if firing angle is high
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is high |
A.
both these methods are based on entirely different principles
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B.
in resonant commutation, the commutating elements carry load current but in self commutation, the commutating elements do not carry load current
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C.
resonant commutation uses L and C but self commutation uses only capacitor
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D.
none of the above
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