For a network given below determine $Z_i, Z_o, and A

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For a network given below determine

$Z_i, Z_o, and A_V$ .

written 8.2 years ago by

teamques10 ★ 69k

• modified 8.2 years ago

Mumbai University > Electronics and telecommunication engineering > Sem 3 > Analog electronics 1

Marks: 10M

Years: May 15

analog electronics

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written 8.2 years ago by

teamques10 ★ 69k

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The circuit is collector DC feedback configuration.

DC: $I_b = \frac{( V_CC- V_BE)}{( R_F+ β R_C )}$

= $\frac{(12-0.7 V)}{((120kΩ+68 kΩ)+(140)3 kΩ)} = \frac{(11.3 V)}{(608 kΩ)}$ = 18.6 µA

〖 I〗_E = (1+ β) 〖 I〗_B = (141) (18.6 µA)

= 2.62 mA

$r_e$ =\frac{ (26 mA)}{I_E} = \frac{(26 mA)}{(2.62 …

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