AIM : i)To analyse the performance of given CE amplifier circuit with respect to gain,band width, i/p resistance & o/p resistance.
ii) To design and simulate common emitter amplifier as per given specifications
THEORY:
The CE amplifier provides high gain and wide frequency response. The emitter lead is common to both the input and output circuits are grounded. The emitter base junction is at forward biased .The collector current is controlled by the base current rather than the emitter current. The input signal is applied to the base terminal of the transistor and amplified output taken across collector terminal. A very small change in base current produces a much larger change in collector current. When the positive is fed to input circuit it opposes forward bias of the circuit which cause the collector current to decrease, it decreases the more negative. Thus when input cycle varies through a negative half cycle, increases the forward bias of the circuit, which causes the collector current increases .Thus the output signal in CE is out of phase with the input signal