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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
Principles of Analog Electronics
416
In addition, let us dene, as usual, R
12
= R
1
| |R
2
and R
EL
= R
E
| |R
L
In order to calculate the unknown values, we will use the two hybrid parameter
equations of the BJT in “c” subscripts:
vhihveqICC
ihihveq
bc ic brcec
efcb oc ec
=+
=+
(...)
(.III CC
..
)
The subscript “c” merely indicates that h–parameters are specic for a BJT used
in a common-collector amplier topology.
11.6.2.1
C.C. (C.C. Hybrid Parameters): Input Resistance
R
iBJT
RR
v
i
iBJT
iBJT
bc
b
def
The equation of the output voltage, v
ec
= R
EL
i
e
, is substituted in
Equation II C.C. obtaining
−= +
v
R
hi hv
ec
EL
fc bo
ce
c
from which we nd the v
ec
expression and subs ...
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Publisher Resources

ISBN: 9781466582026