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5.9 The buck regulator in Figure 5.17a has an input voltage V, = 15 V. The required average out- put voltage Va = 6.5V at la = 0.5 A and the peak-to-peak output ripple voltage is 10 mV. The switching frequency is 20 kHz. The peak-to-peak ripple current of inductor is limited to 0.25 A. Determine (a) the duty cycle k, (b) the filter inductance L, (c) the filter capacitor C, and (d) the critical values of L and C. %3D + el - C V, Vo,Va Load Control (a) Circuit diagram

5.9 The buck regulator in Figure 5.17a has an input voltage V, = 15 V. The required average out- put voltage Va = 6.5V at la = 0.5 A and the peak-to-peak output ripple voltage is 10 mV. The switching frequency is 20 kHz. The peak-to-peak ripple current of inductor is limited to 0.25 A. Determine (a) the duty cycle k, (b) the filter inductance L, (c) the filter capacitor C, and (d) the critical values of L and C. %3D + el - C V, Vo,Va Load Control (a) Circuit diagram

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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5.9 The buck regulator in Figure 5.17a has an input voltage V, = 15 V. The required average out- put voltage V. = 6.5V at la = 0.5 A and the peak-to-peak output ripple voltage is 10 mV. The switching frequency is 20 kHz. The peak-to-peak ripple current of inductor is limited to 0.25 A. Determine (a) the duty cycle k, (b) the filter inductance L, (c) the filter capacitor C, and (d) the critical values of L and C. + el L A Dm C Vs Load Control (a) Circuit diagram
Transcribed Image Text:5.9 The buck regulator in Figure 5.17a has an input voltage V, = 15 V. The required average out- put voltage V. = 6.5V at la = 0.5 A and the peak-to-peak output ripple voltage is 10 mV. The switching frequency is 20 kHz. The peak-to-peak ripple current of inductor is limited to 0.25 A. Determine (a) the duty cycle k, (b) the filter inductance L, (c) the filter capacitor C, and (d) the critical values of L and C. + el L A Dm C Vs Load Control (a) Circuit diagram
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