= 20 kHz. The 4.16 A bipolar transistor is operated as a chopper switch at a frequency of f, circuit arrangement is shown in Figure 4.47a. The de input voltage of the chopper is V = 400 V and the load current is IL tf = 4 µs. Determine the values of (a) L;; (b) C;; (c) R, for critically damped condition; (d) R, if the discharge time is limited to one-third of switching period; (e) R, if peak dis- charge current is limited to 5% of load current; and (f) power loss due to RC snubber P, neglecting the effect of inductor L, on the voltage of snubber capacitor C,. Assume that VCE(sat) = 125 A. The switching times are t, = 1.25 us and = 0.
= 20 kHz. The 4.16 A bipolar transistor is operated as a chopper switch at a frequency of f, circuit arrangement is shown in Figure 4.47a. The de input voltage of the chopper is V = 400 V and the load current is IL tf = 4 µs. Determine the values of (a) L;; (b) C;; (c) R, for critically damped condition; (d) R, if the discharge time is limited to one-third of switching period; (e) R, if peak dis- charge current is limited to 5% of load current; and (f) power loss due to RC snubber P, neglecting the effect of inductor L, on the voltage of snubber capacitor C,. Assume that VCE(sat) = 125 A. The switching times are t, = 1.25 us and = 0.
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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