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Principles of Analog Electronics
book

Principles of Analog Electronics

by Giovanni Saggio
January 2014
Intermediate to advanced content levelIntermediate to advanced
567 pages
23h 13m
English
CRC Press
Content preview from Principles of Analog Electronics
Ampliers: Cascading Stages
509
,
,
,12, ,
,
=−
+
i
R
RR h
i
oI
CI
CI II ie II
cI
ihi
cI fe IbI
,,
,
=
i
R
Rh
i
bI
I
IieI
g,
12,
12
,,
=
+
we can nally write
,
,
,
12,
12,,
,
,12, ,
,
12,
12
,,
=
++
++
A
R
RR
h
R
Rh
R
RR h
h
R
Rh
i
CII
CIIL
fe II
II
II ie II
CI
CI II ie II
fe I
I
IieI
14.4.3 AC Voltage Gain
The overall voltage gain is dened as
def
,
A
v
v
vII
l
s
. It depends on the voltage gain of
each stage.
The voltage gain of the second stage is
A
v
v
v
v
vII
oII
be II
ce II
be II
,
,
,
,
,
==
It is easy to demonstrate that
i
R
RR
i
o
CII
CIIL
cII
,
,
,
=−
+

,,,, ,,
()()
==−=vv RRiRRh i
ce II oCII LcII CIILfe II bII
vhi
be II ie II bII,,,
=
The voltage gain of the second stage is then the ratio of hybrid parameters times
the load resista ...
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Publisher Resources

ISBN: 9781466582026