Why CE Transistor Configuration is most efficient out of all Transistor Configurations?

Advantages of CE Transistor Configuration
( 1 ) High current gain
        IC =  βIB + ICBO

IB = Base current and
ICBO = Collector – base leakage current when emitter is open
β = Current amplification factor
   = IC / IB
  • The value of β is very high therefore the collector current is also more than the input base current. 
  • The current amplification factor is very high in the CE configuration.
  •  Its range is from 20 to 500.
( 2 ) High voltage and high power gain
  • The voltage gain and power gain of the CE configuration is very high due to high current gain. That is why CE configuration is mostly used.
( 3 ) Moderate output to input impedance ratio
  • The ratio of output impedance to input impedance is very small in the case of CE configuration. 
  • This makes it is suitable for coupling between two stages of the transistor. 
  • If the ratio of output impedance to input impedance is very large, the coupling between output stage of first amplifier and input stage of second amplifier is not effective.
You may also like :

No comments:

Post a comment