Basic Electrical and Electronics Engineering: Unit III: Analog Electronics

Comparison of CB, CE and CC Configuration

Bipolar Junction Transistors (BJT)

In a transistor amplifier with AC input signal, the ratio of change in output current to the change in input current is known as current amplification factor.

COMPARISON OF CB, CE AND CC CONFIGURATION


Current Amplification Factor

In a transistor amplifier with AC input signal, the ratio of change in output current to the change in input current is known as current amplification factor.

In CB configuration,


In CE configuration,


In CC configuration,


From equation (6) it is clear that as a approaches unity, β approaches infinity. The CE configuration is used for almost all transistor applications because of its current gain β is high.

Basic Electrical and Electronics Engineering: Unit III: Analog Electronics : Tag: : Bipolar Junction Transistors (BJT) - Comparison of CB, CE and CC Configuration