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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: Basic BJT Congurations
401
Wih MATLAB
®
we can graph A
iBJT
versus h
fe
and h
oe
(Figure 11.36):
% AiBJTCE vs. hfe and hoe
clear clf
Rc = 4000; Rl = 10000;
hfe = [50:10:250]; hoe = [0:0.0001:0.001];
[X,Y] = meshgrid(hfe,hoe);
Z = X./(1+Y.*((Rc.*Rl)./(Rc+Rl)));
mesh(X,Y,Z)
xlabel('hfe'); ylabel('hoe'); zlabel('AiBJTCE');
Similarly, we can graph A
iBJT
versus R
C
and R
L
(Figure 11.37):
% AiBJTCE vs. Rc and Rl
hfe = 200; hoe = 0.001;
Rc = [10:100:10000]; Rl = [10:100:10000];
[X,Y] = meshgrid(Rc,Rl);
Z = hfe./(1+hoe.*((X.*Y)./(X+Y)));
mesh(X,Y,Z)
axis([0 10000 0 10000 50 200])
xlabel('Rc'); ylabel('Rl'); zlabel('AiBJTCE');
250
200
150
A
iBJTCE
100
50
0
1
0.8
0.6
0.4
h
oe ...
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Publisher Resources

ISBN: 9781466582026