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calculate bandwidth for two stages RC coupled CE amplifier.
written 5.1 years ago by gravatar for teamques10 teamques10 ★ 65k modified 2.0 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k
electronic devices and circuits
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written 2.1 years ago by gravatar for sagarkolekar sagarkolekar ★ 11k •   modified 2.1 years ago

Solution:

$\beta_1 = 100, \beta_2 = 150, r\pi_1 = rb\pi_2 = 1.3 k \Omega$

g$m_1$ = g$m_2$ = 50 mA/v

c$\pi_1$ = c$\pi_2$ = 15 pf , c$\mu$ = c$\mu_2$ = 1 pf

enter image description here

1) Low Frequency Response :

Low frequency small signal equivalent circuit.

enter image description here

Step 1.

Calculate R$b_1$ R$b_2$

rb1 …

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