Power supply changeover type power amplifier

Details Power supply changeover type power amplifier Power supply changeover type power amplifier

1981-11-16

1984-02-21

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

330298, H03F 320

Patent

active

044333072

ABSTRACT:
A power supply changeover type power amplifier arranged so that a voltage to be supplied to an output transistor is switched between a high voltage and a low voltage in accordance with the magnitude of an output signal level to thereby expand the dynamic range and improve the power efficiency of the amplifier, and also that the state in which the voltage is switched over to high voltage does not continue for an extended length of time to avoid an excessive consumption of power due to, for example, a high level burst-like signal applied to the power amplifier.

REFERENCES:
patent: 4339730 (1982-07-01), Yokoyama

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