Voltage supply circuit for amplifier

Details Voltage supply circuit for amplifier Voltage supply circuit for amplifier

1998-05-22

2000-01-11

Mottola, Steven J.

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

H03F 304

Patent

active

060140607

ABSTRACT:
A voltage supply circuit for an amplifier which can limit an increase in supplying voltage even if the current supplied to the amplifier fluctuates. The voltage supply circuit receives high and low two voltages that are generated from a power source circuit and are in a relation of high and low levels. Either one of the high voltage and the low voltage is selectively supplied as the power voltage to the amplifier in accordance with the level of the signal outputted from the amplifier. The level of the high voltage is limited to a predetermined magnitude or less when the high voltage is supplied to the amplifier.

REFERENCES:
patent: 4423389 (1983-12-01), Fushiki
patent: 4433307 (1984-02-01), Yokoyama
patent: 4472688 (1984-09-01), Saburo et al.
patent: 4520322 (1985-05-01), Ishii
patent: 5818301 (1998-10-01), Higashiyama et al.

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