Power audio-amplifier with automatic adjustment of the bias curr

Details Power audio-amplifier with automatic adjustment of the bias curr Power audio-amplifier with automatic adjustment of the bias curr

1983-08-15

1985-11-26

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330273, 330296, H03F 330

Patent

active

045556741

ABSTRACT:
A current control circuit coupled to the final stage of the amplifier automatically adjusts the bias current of the final stage so that it is low in the no-load state and higher in the load state. The low no-load value avoids useless energy leakages and heat dissipations, while the higher load value avoids "cross-over" distortions.

REFERENCES:
patent: 4331930 (1982-05-01), Shibata et al.
patent: 4439743 (1984-03-01), Schwarz et al.

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