Definition of Faithful Amplification

Faithful amplification

      The process of raising the strength of a weak signal without any change in its general shape is known as a faithful amplification the key factor for achieving the faithful amplification is that the base emitter junction of transistor remains forward biased and collector junction reverse biased. To ensure this, the following conditions must be specified.

1.       Proper Zero Signal Collector Current: The value of zero signal collector current should be at least equal to the maximum collector current due to signal alone.

2.       Proper Minimum Base-emitter Voltage: In order to achieve faithful amplification, the base emitter voltage V_BE should be fall below 0.5 V for germanium transistor and 0.7 V for silicon transisto

3.      Proper Minimum Collector Emitter Voltage: For faithful amplification, the collector emitter voltage V_CE should not fall below 0.5 V for germanium and 1.0 V for silicon transistors. This is called Knee Voltage.