HW 10
E17
Spring 2011
Due by 4PM on Wednesday
, 6/1/2011
(in the HW box in Kemper 2131)
1
(a)
Consider the circuit shown below and ignore the capacitor for this part of the
problem. Draw
v
O
(
t
) assuming that
( )
120 2 cos(377 )
I
vt
t
=
and using the simple
models presented for the diodes in the nonlinear handout (available on the course
website) with a voltage drop in forward bias of 0.7 V.
(b)
Calculate the minimum
value of capacitor needed to achieve a ripple of no more than 5% in
v
O
(
t
) if
R
= 100
Ω
.
2
(a)
Derive the transfer function for the opamp circuit shown below and put it in the
form
()
12
11
o
s
pp
Vj
jK
Hj
jj
ω
ωω
==
++
, where
K
is a constant and
p
1
and
p
2
are two constant “pole” frequencies.
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 Fall '08
 Lagerstrom
 5%, Rectifier, Switchedmode power supply, Electrical impedance, problem. Draw vO

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