Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Patent
1983-08-17
1985-09-24
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including particular power supply circuitry
330207P, H03F 304
Patent
active
045435391
ABSTRACT:
An amplifier comprises an amplifier circuit for amplifying an input signal and a supply voltage detector for controlling the operation of the amplifier circuit. The supply voltage detector has hysteresis characteristics as to a first threshold voltage and a second threshold voltage which are different from each other in order to detect the magnitudes of the supply voltage. The amplifying operation of the amplifier circuit is controlled as to the start-up and turn-off operation thereof by an output signal of the supply voltage detector.
REFERENCES:
patent: 4320350 (1982-03-01), Drapac
Seki Kunio
Takeshita Ritsuji
Hitachi , Ltd.
Mullins James B.
Wan G.
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