Q.1 (a) Figure Q.1(a) is a voltage regulator with a foldback protection circuit at its output with input voltage, VIN varies from 15 V to 20 V. The transistor parameters are: 25 Q₁: VBEI(n)-1.2 V and B₁-50 Q2: VBEX()-0.7 V and B₁-200 (i) Determine the minimum and maximum values for the output voltage Vo. (ii) Using the foldback circuit, derive the expression of the maximum current, IL(max) and the short circuit current, Iusc. Calculate their values when Vo is set to 15 V. (iii) Calculate the maximum power dissipated in pass transistor Q when the output is short-circuited.

Q.1 (a) Figure Q.1(a) is a voltage regulator with a foldback protection circuit at its output with input voltage, VIN varies from 15 V to 20 V. The transistor parameters are: 25 Q₁: VBEI(n)-1.2 V and B₁-50 Q2: VBEX()-0.7 V and B₁-200 (i) Determine the minimum and maximum values for the output voltage Vo. (ii) Using the foldback circuit, derive the expression of the maximum current, IL(max) and the short circuit current, Iusc. Calculate their values when Vo is set to 15 V. (iii) Calculate the maximum power dissipated in pass transistor Q when the output is short-circuited.

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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