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ZID:
ELE 440/540 Exam 1 Fall 2019
Problem 3
(Seven points if only the correct answer is circled.
Four points if two answers are circled and one is correct.)
lin
10 VS52
The circuit given represents a simple buck convert. All the components can be
considered ideal and the inductor current remains continuous.
a) What is the average diode voltage ( Va)?
i) 12.5V
ii) 10V
iii) 25V
iv) 15V
b) What is the average current in the inductor ( it)?
i) 25
L
ii)-
25
5
iii)
(25-10)
L
iv)
10
5
c) What is the average input current ( iin) ?
i) Va . it
25
25
ii)
iii) it
iv) (25-10). i
V
A

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