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h-Parameter Equivalent Circuit Model of BJT

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Two-port network
 
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Hybrid model of a linear circuit
 
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Hybrid model of a bipolar junction

Advantages of h-parameter

The advantages of h-parameter representation of a transistor are given below:
  1. The h-parameters of a transistor are real numbers at audio-frequency range. Therefore, the reactive part of parameters are absent in h-parameter representation of transistor.
  2. The h-parameters of a transistor can be measured and these parameters can be determined from static characteristics of a transistor.
  3. The current gain, voltage gain, input resistance and output resistance can be derived in the simplest form.
  4. The h-parameters can be used to analyse any transistor circuit.
  5. In the data sheet of a transistor, the h-parameters are specified by the manufacturer.




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