Power Electronics [GATE (Graduate Aptitude Test in Engineering) Electrical Engineering]: Questions 9 - 10 of 10

Access detailed explanations (illustrated with images and videos) to 356 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 250.00 -OR-

How to register? Already Subscribed?

Question 9

Power Electronics

Appeared in Year: 2019

Question

Numeric Answer▾

In a DC-DC boost converter, the duty ratio is controlled to regulate the output voltage at 48 V. The input DC voltage is 24 V. The output power is 120 W. The switching frequency is 50 kHz. Assume ideal components and a very large output filter capacitor. The converter operates at the boundary between Continuous and Discontinuous conduction modes. The Value of the Boost inductor (in ) is ________.

Question 10

Power Electronics

Appeared in Year: 2020

Question

Numeric Answer▾

A double pulse measurement for an inductively loaded circuit controlled by the IGBT switch is carried out to evaluate the reverse recovery characteristics of the diode, D, represented approximately as a piecewise linear plot of current vs time at diode turn-off. , is a parasitic inductance due to the wiring of the circuit and is in series with the diode. The point on the plot (indicate your choice by entering 1,2, 3 or 4) at which the IGBT experiences the highest current stress is ________.

A Double Pulse Measurement

Developed by: