The GATE Grind

GATE Power Electronics: Power factor and Distortion Factor of AC to DC converters – Previous Year Questions

4 GATE previous year questions on Power factor and Distortion Factor of AC to DC converters (Power Electronics, Electrical Engineering) with answers and explanations, from every paper.

  1. GATE 2016 EE Q53 (2 marks, Multiple choice) – A single-phase thyristor-bridge rectifier is fed from a 230 V, 50 Hz, single-phase AC mains. If it is delivering a constant DC current of 10 A, at…
  2. GATE 2021 EE Q58 (2 marks, Numerical answer) – The waveform shown in solid line is obtained by clipping a full-wave rectified sinusoid (shown dashed). The ratio of the RMS value of the full-wave…
  3. GATE 2022 EE Q33 (1 mark, Numerical answer) – The voltage at the input of an AC-DC rectifier is given by v(t)=2302 t where =250 rad/s. The input current drawn by the rectifier is given by i(t)=10(…
  4. GATE 2025 EE Q27 (1 mark, Multiple choice) – The input voltage v(t) and current i(t) of a converter are given by, v(t)=300( t)\ V i(t)=10( t-6)+2(3 t+6)+(5 t+2)\ A where, =250 rad/s. The input…