BIAS_SUPPLY_FOR_CLASS_AB

Published:2009/6/25 21:23:00 Author:Jessie | From:SeekIC

Two-transistor supply using PNP silicon transistor as amplified diode variable-voltage source gives improved-performance transistor RF power amplifier op-erating in class AB Iinear mode. Transistor types are not critical, Output impedance of bias source is about 1 ohm, and output voltage changes only up to 3 1/2 for ±2.5 V change in input voltage Vcc.-C. P, Bartram, Bias Supply for R,F. Power Amplifiers, Wireless World, April 1976,p61.



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