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T1, T2 are triggered at 0 and T3, T4 at T/2. If both the pairs of SCRs conduct for equal duration and the load consists of a capacitor. Then

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T1, T2 are triggered at 0 and T3, T4 at T/2. If both the pairs of SCRs conduct for equal duration and the load consists of a capacitor. Then

(a) the load current waveform is a square wave

(b) the load voltage waveform is a square wave

(c) the load current is constant dc

(d) the load voltage is constant dc

The question was asked in an interview.

I would like to ask this question from Current Source Inverters topic in chapter Inverters of Power Electronics

1 Answer

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Correct option is (a) the load current waveform is a square wave

The best explanation: The load current waveform is a square wave with frequency = 1/T. As the load consists of a capacitor, dv/dt must be constant over every half cycle. This slope is positive from zero to T/2 and negative from T/2 to T.

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