(a)Figure Q1(a) shows a step-down dc-dc converter with an LC filter at its output. The Diode D is an ideal device. The switch S is operated with a duty ratio D = 0.4 at the switching frequencyf, = 10 kHz. Assume that the output voltage V, and output current I, are both constant. Given that V, = 100 V, L = 250 uH, and C = 100 uF i. Find the minimum and maximum values of the inductor current i, for I, = 10 A. Show all your calculations. ii. Sketch the source current i, , and find its average value. is S L 1. V. Figure Q1(a)

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
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(a)Figure Q1(a) shows a step-down dc-dc converter with an LC filter at its
output. The Diode D is an ideal device. The switch S is operated with a
duty ratio D = 0.4 at the switching frequencyf, = 10 kHz. Assume that
the output voltage V, and output current I, are both constant. Given that
V, = 100 V, L = 250 uH, and C = 100 uF
i. Find the minimum and maximum values of the inductor current
i, for I, = 10 A. Show all your calculations.
ii. Sketch the source current i, , and find its average value.
is
L
Vo
Figure Q1(a)
Transcribed Image Text:(a)Figure Q1(a) shows a step-down dc-dc converter with an LC filter at its output. The Diode D is an ideal device. The switch S is operated with a duty ratio D = 0.4 at the switching frequencyf, = 10 kHz. Assume that the output voltage V, and output current I, are both constant. Given that V, = 100 V, L = 250 uH, and C = 100 uF i. Find the minimum and maximum values of the inductor current i, for I, = 10 A. Show all your calculations. ii. Sketch the source current i, , and find its average value. is L Vo Figure Q1(a)
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