Cascade amplifier and R-C coupled ampifier

$$A_{v1}=\frac {R_2 \parallel r_{i,2}}{r_{e1}’} $$

$$A_V=\frac{(R_2\parallel r_{i,2}...}

Differential amplifier and CMRR

1)Important equations should be remember:

$$ V_{EE}=V_{BE}+2I_E R_+R_E$$

$$I_E=\fra...}

Common emitter amplifier and it’s equivalent AC and DC equivalent circuit

1) Important points to  remember:

steps to design dc or ac equivalent circuit:

Akshamala