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Load-Line Analysis (Example 2)<br />
Problem: Find Q-point<br />
Given data: V=10 V, R=10kΩ.<br />
<strong>Diode</strong> I-V curve.<br />
Analysis:<br />
4<br />
10 = I<br />
D10<br />
+ V D<br />
To define the load line we use,<br />
VD<br />
= 0, I<br />
D<br />
= (10V /10kΩ)<br />
=<br />
V = 5, I = 0.5 mA<br />
D<br />
D<br />
These points and the resulting load<br />
line are plotted. Q-point is given by<br />
intersection of load line and diode<br />
characteristic:<br />
Q-point = (0.95 mA, 0.6 V)<br />
1mA<br />
ELE2110A © 2008<br />
Lecture 02 - 31
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