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Small signal equivalent circuit 2
Voltage gain Av0:
The input voltage is given as:
The voltage gain is then given as:
For large RE1 we can have:
Thus for
The voltage gain will be independent of the transistor parameters
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Small signal equivalent circuit 3
2
Small signal equivalent circuit example
DC equiv. circuit
Now from Eqs. 4.47 and 4.53
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Small signal equivalent circuit example contd.
4
Small signal equivalent circuit example contd.
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