GATE Power Electronics: Single and three-phase configuration of uncontrolled rectifiers – Previous Year Questions
18 GATE previous year questions on Single and three-phase configuration of uncontrolled rectifiers (Power Electronics, Electrical Engineering) with answers and explanations, from every paper.
- GATE 2017 EE Q63 – The figure below shows an uncontrolled diode bridge rectifier supplied from a 220 V, 50 Hz, 1-phase ac source. The load draws a constant current I o =…
- GATE 2018 EE Q13 – A single phase fully controlled rectifier is supplying a load with an anti-parallel diode as shown in the figure. All switches and diodes are ideal.…
- GATE 2018 EE Q33 – The waveform of the current drawn by a semi-converter from a sinusoidal AC voltage source is shown in the figure. If I 0=20 A, the rms value of…
- GATE 2018 EE Q59 – A phase controlled single phase rectifier, supplied by an AC source, feeds power to an R-L-E load as shown in the figure. The rectifier output voltage…
- GATE 2019 EE Q19 – A six-pulse thyristor bridge rectifier is connected to a balanced three-phase, 50 Hz AC source. Assuming that the DC output current of the rectifier…
- GATE 2019 EE Q48 – The line currents of a three-phase four wire system are square waves with amplitude of 100 A. These three currents are phase shifted by 120 with…
- GATE 2019 EE Q64 – A fully-controlled three-phase bridge converter is working from a 415 V, 50 Hz AC supply. It is supplying constant current of 100 A at 400 V to a DC…
- GATE 2020 EE Q21 – A single-phase, full-bridge diode rectifier fed from a 230 V, 50 Hz sinusoidal source supplies a series combination of finite resistance, R, and a…
- GATE 2022 EE Q32 – A single-phase full-bridge diode rectifier feeds a resistive load of 50\ from a 200 V, 50 Hz single phase AC supply. If the diodes are ideal, then the…
- GATE 2022 EE Q59 – For the ideal AC-DC rectifier circuit shown in the figure below, the load current magnitude is I dc=15 A and is ripple free. The thyristors are fired…
- GATE 2023 EE Q58 – The single phase rectifier consisting of three thyristors T 1, T 2, T 3 and a diode D 1 feed power to a 10 A constant current load. T 1 and T 3 are…
- GATE 2024 EE Q28 – A single-phase triac based AC voltage controller feeds a series RL load. The input AC supply is 230 V, 50 Hz. The values of R and L are 10 Ω and 18.37…
- GATE 2024 EE Q62 – A single-phase half-controlled bridge converter supplies an inductive load with ripple free load current. The triggering angle of the converter is…
- GATE 2024 EE Q65 – A single-phase full-controlled thyristor converter bridge is used for regenerative braking of a separately excited DC motor with the following…
- GATE 2025 EE Q47 – An ideal sinusoidal voltage source v(t)=2302(250t) V feeds an ideal inductor L through an ideal SCR with firing angle =0. If L=100 mH, then the peak…
- GATE 2025 EE Q48 – In the following circuit, the average voltage V o=400(1+3)\ V, where is the firing angle. If the power dissipated in the resistor is 64 W, then the…
- GATE 2026 EE Q34 – Consider the circuit shown. Assume that the diode D is ideal. The supply voltage v s=325(250t) V, L=500\ H, and R=10\ . The peak diode current (in…
- GATE 2026 EE Q61 – Consider the circuit shown. Assume that the diode (D) is ideal. Given v s=100(250t) V, V dc=50 V, and R=10\ , the average value of the current through…