1
EECS 215 W08 Problem Set #7
Assigned:
Monday, 10March2008
Due:
Monday, 17March2008
Homework is due at the
beginning
of lecture.
Reading Assignment:
Chapter 7 and Chapter 8
1.
A&S3 7.77 – First, determine
v(t)
for t>0 by hand calculation for the circuit below.
Then, perform the problem as stated by the book: Use PSpice to determine
v(t)
for t>0. It
is advised that you read Chapter 6 on Time Domain Analysis in the PSPICE for Basic
Circuit Analysis book, as well as Appendix D in A&S3. Note that the switch opening at
time t=0 may be represented in PSpice by the part named Sw_tOpen.
2.
Determine
v
c
(t)
for t>0 for the circuit below by hand calculation and through simulation
with PSpice. The current source is given by the expression I
S
(t)=10+10e
t/10sec
u(t) A.
Note that this current source has a value of 10 A for time t<0, jumps to 20 A at time t=0,
and then decays exponentially back to 10 A for t>0. In PSpice, this current source may be
represented using the part VEXP as described on pages A35 and A36 in A&S3.
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 Winter '08
 Phillips
 Inductor, dt dt, Pspice, series RLC circuit

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