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Simplified General h-Parameter Model The model can be simplified based on these approximations: hr  0 therefore hrVo = 0 and ho  (high resistance on the output) Simplified hf = forward transfer current ratio (Io/Ii).hr = reverse transfer voltage ratio (Vi/Vo).General h-Parameters for any Transistor Configuration These parameters can be found in a specification sheet for a transistor.ĭetermination of parameter H22 is a conductance! Hybrid Equivalent Model The hybrid parameters: hie, hre, hfe, hoe are developed and used to model the transistor. H-Parameters h11 = hi = Input Resistanceh12 = hr = Reverse Transfer Voltage Ratioh21 = hf = Forward Transfer Current Ratioh22 = ho = Output Admittance Hybrid Parameter Model Ii Io Linear Two port Device Vo Vi FET: Generalized analysis of small signal model, Analysis of CG, CS and CD amplifiers, comparison of FET amplifiers.

UNIT- V Small Signal Low Frequency Transistor Amplifier Models:īJT: Two port network, Transistor hybrid model, determination of h- parameters, conversion of h-parameters, generalized analysis of transistor amplifier model using h-parameters, Analysis of CB, CE and CC amplifiers using exact and approximate analysis, Comparison of transistor amplifiers.