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Power Electronics
Choppers and Commutation Techniques
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1
GATE EE 2025
Numerical
+1
-0
In the circuit with ideal devices, the power MOSFET is operated with a duty cycle of 0.4 in a switching cycle with $I=10 \mathrm{~A}$ and $V=15 \mathrm{~V}$. The power delivered by the current source, in $W$, is ________ . (round off to the nearest integer) GATE EE 2025 Power Electronics - Choppers and Commutation Techniques Question 1 English
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2
GATE EE 2024
Numerical
+1
-0

A forced commutated thyristorized step-down chopper is shown in the figure. Neglect the ON-state drop across the power devices. Assume that the capacitor is initially charged to 50 V with the polarity shown in the figure. The load current ($I_L$) can be assumed to be constant at 10 A. Initially, ThM is ON and ThA is OFF. The turn-off time available to ThM in microseconds, when ThA is triggered, is________ (rounded off to the nearest integer).

GATE EE 2024 Power Electronics - Choppers and Commutation Techniques Question 4 English
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3
GATE EE 2023
MCQ (Single Correct Answer)
+1
-0.33

The chopper circuit shown in figure (i) feeds power to a 5 A DC constant current source. The switching frequency of the chopper is 100 kHz. All the components can be assumed to be ideal. The gate signals of switches S$$_1$$ and S$$_2$$ are shown in figure (ii). Average voltage across the 5 A current source is

GATE EE 2023 Power Electronics - Choppers and Commutation Techniques Question 5 English

A
10 V
B
6 V
C
12 V
D
20 V
4
GATE EE 2016 Set 1
Numerical
+1
-0
A buck converter, as shown in Figure $$(a)$$ below, is working in steady state. The output voltage and the inductor current can be assumed to be ripple free. Figure $$(b)$$ shows the inductor voltage $${V_L}$$ during a complete switching interval. Assuming all devices are ideal, the duty cycle of the buck converter is ________. GATE EE 2016 Set 1 Power Electronics - Choppers and Commutation Techniques Question 38 English 1 GATE EE 2016 Set 1 Power Electronics - Choppers and Commutation Techniques Question 38 English 2
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Questions Asked from Marks 1
GATE EE 2025 (1) GATE EE 2024 (1) GATE EE 2023 (1) GATE EE 2016 Set 1 (1) GATE EE 2015 Set 1 (1) GATE EE 2014 Set 2 (1) GATE EE 2010 (1) GATE EE 2002 (1) GATE EE 1996 (1) GATE EE 1995 (2) GATE EE 1994 (1) GATE EE 1993 (1)
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement