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Forum  Academics  Electrical  feed back amplifiers

 Author Questions
asked by - Pank
Pank 		feed back amplifiers
 Author Answers
answered by - RSA
RSA 		Basically, only for the amplifiers which are employed with VOLTAGE SERIES & CURRENT SHUNT, gain is Vout/Vin and Iout/Iin respectively. But for VOLTAGE SHUNT & CURRENT SERIES, the amplifiers are trans-resistance and trans-conductance amplifiers respectively and their TRANSFER FUNCTIONS (NOT THE GAIN) have units OHM & MHO respectively. So, the thing u need to understand is that, we refer to the TRANSFER FUNCTION and not the GAIN, for voltage series and current shunt amplifiers alone the TRANSFER FUNCTION becomes the VOLTAGE AND CURRENT GAIN respectively.