μA741 direct coupling audio power amplifition circuit

Published:2011/7/7 1:15:00 Author:chopper | Keyword: direct, coupling, audio power, amplifition | From:SeekIC

The picture shows direct coupling audio power amplifition circuit.It has two pratical methods of audio power amplifier formed by integrated op-amp.The first practical form is shown in (a).And the structure of the circuit is to add the complementary symmetry emitter follower to the output end of op-amp, and this form is simple,easy to use,but power usage is low.Figure (a) tells that the emitters of two dynatrons are connected with RE (1.2Ω) in series, whose role is to implement over-current protection to power amplifier dynatron.



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