Power amplifying circuit with changing means for supply voltage

Details Power amplifying circuit with changing means for supply voltage Power amplifying circuit with changing means for supply voltage

1980-03-24

1982-09-07

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

330263, H03F 321, H03F 326

Patent

active

043486444

ABSTRACT:
A power amplifying circuit detects the crest factor of an electric signal, especially an audio signal, requiring amplification. In case this crest factor is great, the level of supply voltage for power amplifying elements of the power amplifying circuit is raised, and conversely in case the crest factor is small, the supply voltage level is lowered, thereby minimizing the development of distortions in the power amplifying elements as well as minimizing thermal loss thereof.

REFERENCES:
patent: 3319175 (1967-05-01), Kramer
patent: 3466527 (1969-09-01), Chun
patent: 3506905 (1970-04-01), Thomas
patent: 3622899 (1971-11-01), Elsenberg
patent: 3723849 (1973-03-01), Ludloff
patent: 3961280 (1976-06-01), Sampei
patent: 4051425 (1977-09-01), Smith
patent: 4115742 (1978-09-01), Yokoyama
patent: 4218660 (1980-08-01), Carver

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