Single Power Complementary and Symmetry Power Amplifier Circuit

Published:2011/7/13 7:21:00 Author:Michel | Keyword: Single Power, Complementary and Symmetry, Power Amplifier Circuit | From:SeekIC

First,the circuit structure and principleFigure 1 is a circuit uses power complementary and symmetry principle.The T3 constitutes preamplifier stage and T2 and T1 constithute complementaryand symmetry circuit output.When input signal vi=0,usually IC3 ,VB2 and VB1 reach needed value as long as both numerical valueof R1 and R2 are proper.At the time,T2 and T1 are provided a proper offset section,so that the electric potential of K2,VK is equlal to VC and VCC/2. When the signal vi is added,T1 conducts the electricity ,current flows through load RL and C is charged as the signal is on its negative half cycle.When it's positive half cycle,T2 conducts the electricity,the charged capacitance C acts acts as a double power as power supply -VCC and it discharges via load RL.



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