Amplifier with power supply switching

Details Amplifier with power supply switching Amplifier with power supply switching

1981-05-06

1983-12-27

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

H03F 304

Patent

active

044233892

ABSTRACT:
An amplifier arranged so that, when a plurality of power supply voltages supplied to an amplifying device are switched over in accordance with a signal voltage level of the amplifying device, the reference voltage provided for comparison with the abovesaid signal level will follow the fluctuations of the voltage of the lower voltage power supply among said plurality of power supplies, whereby avoiding the starting of operation of the amplifying device in its saturating region to thereby prevent increase in distortion of an output signal.

REFERENCES:
patent: 3486128 (1969-12-01), Lohrmann
patent: 4218660 (1980-08-01), Carver
patent: 4329657 (1982-05-01), Kamiya
patent: 4339730 (1982-07-01), Yokoyama

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