1
GATE EE 2022
Numerical
+1
-0.33

A single-phase full-bridge diode rectifier feeds a resistive load of 50 $$\Omega$$ from a 200 V, 50 Hz single phase AC supply. If the diodes are ideal, then the active power, in watts, drawn by the load is _________. (round off to nearest integer).

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2
GATE EE 2022
Numerical
+1
-0.33

The voltage at the input of an AC-DC rectifier is given by $$v(t) = 230\sqrt 2 \sin \omega t$$ where $$\omega = 2\pi \times 50$$ rad/s. The input current drawn by the rectifier is given by

$$i(t) = 10\sin \left( {\omega t - {\pi \over 3}} \right) + 4\sin \left( {3\omega t - {\pi \over 6}} \right) + 3\sin \left( {5\omega t - {\pi \over 3}} \right)$$

The input power factor, (rounded off to two decimal places), is _________ lag.

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3
GATE EE 2022
Numerical
+1
-0.33

For the ideal AC-DC rectifier circuit shown in the figure below, the load current magnitude is Idc = 15 A and is ripple free. The thyristors are fired with a delay angle of 45$$^\circ$$. The amplitude of the fundamental component of the source current, in amperes, is _________. (round off to two decimal places).

GATE EE 2022 Power Electronics - Single and Three Phase Rectifier Question 3 English

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4
GATE EE 2018
Numerical
+1
-0.33
The waveform of the current drawn by a semi-converter from a sinusoidal AC voltage source is shown in the figure. If I0 = 20 A, the rms value of fundamental component of the current is ___________A (up to 2 decimal places). GATE EE 2018 Power Electronics - Single and Three Phase Rectifier Question 6 English
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