Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 5, Problem 5RQ
A 0.5-W,
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Q2:
(30 Marks)
Design a DC/DC converter that produce output waveforms that shown in figures below from a
fixed DC source of 20 volts.
Vo (Volt)
14.1
IL (Amp)
13.9
2.25
1.75
† (msec)
Output voltage
0.18
0.2
t (msec)
L
0.214 0.22
Output current
6. Build the circuit shown in Figure 2 below in PSpice. Note that the power supply V1 is a
VSIN power supply in the SOURCE library. Vcc is a VDC supply found in the SOURCE
library. Model this circuit using the Time Domain (Transient) Analysis Type with a Run To
Time of 2 ms.
A. Paste your output graph showing the voltage at the base terminal, collector terminal
and at the load.
B. What is the voltage gain of the circuit? (Compare the voltage amplitude at the base
terminal input (across Rb2) to that at the collector terminal.
C. What happens to the output voltage at the collector terminal if the value of Rb1 is
reduced by a factor of 10 (to 14.7 kn)? Simulate this situation and explain the result.
D. What happens to the output voltage at the collector terminal if the value of Rb1 is
increased by a factor of 3 (to 441 k)? Simulate this situation and explain the result.
Rb1
RC
147k
1k
C2
C1
Q1
Vcc
1u
VOFF = 0
Q2N3904
10Vdc
VAMPL = 0.1V1
1u
FREQ = 2k
R_load
Rb2
Re
AC = 0
250
40k
20
Figure…
Chapter 5 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 5 - Name three types of fixed resistors.Ch. 5 - What is the advantage of a metal film resistor...Ch. 5 - What is the advantage of a wire-wound resistor?Ch. 5 - How should tubular wire-wound resistors be mounted...Ch. 5 - A 0.5-W, 2000- resistor has a current flow of 0.01...Ch. 5 - A 1-W, 350- resistor is connected to 24 V. Is this...Ch. 5 - A resistor has color bands of orange, blue,...Ch. 5 - A 10,000- resistor has a tolerance of 5%. What are...Ch. 5 - Is 51,000 a standard value for a 5% resistor?Ch. 5 - What is a potentiometer?
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