CE_amplifier

CE amplifier, BJT of NPN type is used in active region, the quiescent point is set at center of load line using voltage divider biasing. Coupling capacitor at input (CB) and output (CC) circuit is used to filter DC signal riding with AC signal. The CE is called bypass capacitor, this ensures the improvement in voltage gain of amplifier for AC signal, it passes AC signal to avoid drop across at RE which in turn improves voltage gain.