Microelectronics: Circuit Analysis and Design
4th Edition
ISBN: 9780073380643
Author: Donald A. Neamen
Publisher: McGraw-Hill Companies, The
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Question
Chapter 13, Problem 13.39P
(a)
To determine
The bias current
(b)
To determine
The W/L ratios of
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What must be the minimum power rating for the external pass transistor used with a 7815
regulator in a circuit such as that shown in Figure below? The input voltage is 30 V and the
load resistance is 10 n. The maximum internal current is to be 700 ma
Assume that there is no heat sink for this calculation. Keep in mind that the use of a heat
sink increases the effective power rating of the transistor and you can use a lower rated
transistor.
VIN
Re
VoUT
7815
RL
A Bipolar junction Transistor with curreat amplification factor being 100, Input Base current is 50μA. Collector voltage is 10 V and biasing voltage being +20 V.
Find followings
a. Collector current
b. Resistance (R1)
c. Collector voltage , Emitter voltage , Base Voltage & Collector-Emitter Voltage.
QUESTION 1
By referring to Figure Q1, determine:
a) The Q-point values of Ic and VCE.
b) Draw the DC load line and plot the Q-point based on answer from Q1(a).
c) The diode emitter resistance, re and draw re transistor model (AC equivalent circuu).
d) The input impedance, Zi as seen from the input voltage.
e) The output impedance, Z, as seen from output.
f) The voltage gain, Av and the current gain, A¡.
Chapter 13 Solutions
Microelectronics: Circuit Analysis and Design
Ch. 13 - Prob. 13.1EPCh. 13 - Prob. 13.2EPCh. 13 - Prob. 13.4EPCh. 13 - Repeat Example 13.5 assuming Early voltages of...Ch. 13 - Prob. 13.6EPCh. 13 - Prob. 13.3TYUCh. 13 - Prob. 13.4TYUCh. 13 - Prob. 13.5TYUCh. 13 - Prob. 13.6TYUCh. 13 - Prob. 13.8EP
Ch. 13 - Prob. 13.11EPCh. 13 - Prob. 13.10TYUCh. 13 - Prob. 13.12TYUCh. 13 - Prob. 13.12EPCh. 13 - Prob. 13.13EPCh. 13 - Prob. 13.15EPCh. 13 - Prob. 13.15TYUCh. 13 - Consider the LF155 BiFET input stage in Figure...Ch. 13 - Describe the principal stages of a generalpurpose...Ch. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Describe the operation and characteristics of a...Ch. 13 - Describe the configuration and operation of the...Ch. 13 - What is the purpose of the resistorin the active...Ch. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Describe the frequency compensation technique in...Ch. 13 - Sketch and describe the general characteristics of...Ch. 13 - Prob. 11RQCh. 13 - Sketch and describe the principal advantage of a...Ch. 13 - Prob. 13RQCh. 13 - What are the principal factors limiting the...Ch. 13 - Consider the simple MOS opamp circuit shown in...Ch. 13 - Prob. 13.2PCh. 13 - Prob. 13.5PCh. 13 - Consider the input stage of the 741 opamp in...Ch. 13 - Prob. 13.7PCh. 13 - Prob. 13.8PCh. 13 - Prob. 13.10PCh. 13 - The minimum recommended supply voltages for the...Ch. 13 - Prob. 13.12PCh. 13 - Consider the 741 opamp in Figure 13.3, biased with...Ch. 13 - Prob. 13.14PCh. 13 - Consider the output stage of the 741 opamp shown...Ch. 13 - Prob. 13.16PCh. 13 - Prob. 13.19PCh. 13 - Prob. 13.20PCh. 13 - Prob. 13.21PCh. 13 - Prob. 13.22PCh. 13 - Prob. 13.23PCh. 13 - Prob. 13.24PCh. 13 - (a) Determine the differential input resistance of...Ch. 13 - An opamp that is internally compensated by Miller...Ch. 13 - The CMOS opamp in Figure 13.14 is biased at V+=5V...Ch. 13 - Prob. 13.34PCh. 13 - Consider the MC14573 opamp in Figure 13.14, with...Ch. 13 - Prob. 13.36PCh. 13 - Prob. 13.37PCh. 13 - Prob. 13.39PCh. 13 - Prob. 13.41PCh. 13 - In the bias portion of the CA1340 opamp in Figure...Ch. 13 - Prob. 13.57PCh. 13 - In the LF155 BiFET opamp in Figure 13.25, the...
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