Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Patent
1985-04-23
1986-07-01
Wan, Gene
Amplifiers
With semiconductor amplifying device
Including particular power supply circuitry
330135, 330262, H03F 304, H03F 326
Patent
active
045982554
ABSTRACT:
Audio power amplifier in which dynamic power output can be increased without increasing continuous power output. The apparatus includes an amplifying means for receiving an input signal and for producing an amplified output signal, first means for supplying a first, relatively low supply voltage to the amplifying means, second means for supplying a second, relatively high supply voltage to the amplifying means, and control means for supplying the first supply voltage to the amplifying means when the level of the amplified output signal is less than the first supply voltage and for supplying the second supply voltage to the amplifying means when the level of the output signal exceeds the first supply voltage. The invention thus provides an amplifier apparatus having relatively low power dissipation and high efficiency and that will avoid any output signal clipping that will distort the output signal.
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Fulet Electronic Industrial Company
Wan Gene
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