Q2. The circuit shown below is a voltage regulator, which aims to keep the change in the output voltage as small aspossible when the input voltage changes. Assuming that R + R, «100 k2, the feedback voltage v, can be writtenapproximately asV, =-R,-V% = kv0 < k <1R + R,(a) Find the output voltage v, in terms of the input voltage v, and the reference voltage Vpef .= 5 V and v, = 35 V , calculate the output voltage v, .(b) Taking k = 0.5, V,ref(c) Calculate the output voltage when v, is increased to 40 V.200v.++ ve100 k2RaVodeRLVsV refpowersupplywwwm

Output voltage in terms of input voltage and reference voltage is determined as shown below

Q2. The circuit shown below is a voltage regulator, which aims to keep the change in the output voltage as small as possible when the input voltage changes. Assuming that R, + R, <100 k2, the feedback voltage v, can be written approximately as R, V% = kv, R + R, v, = 0

Q2. The circuit shown below is a voltage regulator, which aims to keep the change in the output voltage as small as possible when the input voltage changes. Assuming that R, + R, <100 k2, the feedback voltage v, can be written approximately as R, V% = kv, R + R, v, = 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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Question

Q2. The circuit shown below is a voltage regulator, which aims to keep the change in the output voltage as small as
possible when the input voltage changes. Assuming that R + R, «100 k2, the feedback voltage v, can be written
approximately as
V, =-
R,
-V% = kv
0 < k <1
R + R,
(a) Find the output voltage v, in terms of the input voltage v, and the reference voltage Vpef .
= 5 V and v, = 35 V , calculate the output voltage v, .
(b) Taking k = 0.5, V,
ref
(c) Calculate the output voltage when v, is increased to 40 V.
200v.
+
+ ve
100 k2
Ra
Vo
de
RL
Vs
V ref
power
supply
wwwm

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