Basic Complementary Symmetry OTL Power Amplifier Circuit

Published:2011/6/25 7:19:00 Author:Michel | Keyword: Complementary, Symmetry, OTL Power, Amplifier Circuit | From:SeekIC

OTL is the English abbreviation of Output Transformer Less which means the transformer without output.OTL power amplifier is the power amplifier circuit that has not output coupling .OTL power amplifier mostly uses complementary and push-pull output level circuit. The aboved picture is complementary symmetric OTL power amplifier circuit.T2 is a NPN power transistor,T3 is a PNP transistor and they constitutes complementary and push-pull output tube.T1 is voltage amplifier incentive tube.The signal is amplified in T1 after C1 coupling and its positive half cycle of signal which is generated by 1 collector makes T2 conduct.Its negative half cycle makes T3 conduct and the amplified signal outputs to speaker via capacitance C3.



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