Common Emitter Amplifier Circuit. It is a widely used amplifier circuit because it provides good current gain and good voltage gain and it is also known as inverting amplifier because it gives 180 phase shift from input to output. In this configuration base of transistor work as input collector as output terminal and emitter is common for both base and collector.
As it consists of three basic terminals that are base emitter and the collector but for the input and the output circuit connections it require minimum of four terminals. However as the name of this circuit implies the key attribute is that the emitter circuit is common to both input and output. The capacitor and the 110k and 10k resistors biasthe transistor s base at about 1 7 v so that the average value of the input is moved up to that level.
This type of biasing arrangement uses two resistors as a potential divider network across the supply with their center point supplying the required base bias volatge to the transistor.
Common emitter as an amplifier is a configuration of the basic bipolar junction transistor bjt. There are different types of electronic components in the common emitter amplifier which are r1 resistor is used for the forward bias the r2 resistor is used for the development of bias the rl resistor is used at the output it is called the load resistance. In common emitter amplifier input is applied to b e junction and output is taken from e c terminal here emitter terminal is common for both input and output. The capacitor and the 110k and 10k resistors biasthe transistor s base at about 1 7 v so that the average value of the input is moved up to that level.
