Amplifiers – With semiconductor amplifying device – Including particular power supply circuitry
Patent
1994-06-29
1995-09-12
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including particular power supply circuitry
323281, H03F 102, G05F 156
Patent
active
054500370
ABSTRACT:
A gradient detecting unit detects the gradient in the output of a driven circuit. An offset voltage generating unit generates an offset voltage in response to an output of a driven circuit as well as the gradient detected by the gradient detecting unit. The gradient in the output of the driven circuit is increased as the change thereof is more abrupt and decreased as the change thereof is more gentle. For example, if the detected gradient is added to the normal offset voltage to form an offset voltage, the offset voltage can follow the changes in the output of the driven circuit to supply a proper supply voltage to the driven circuit.
REFERENCES:
patent: 4087759 (1978-05-01), Iwamatsu
patent: 4626767 (1986-12-01), Clappier et al.
patent: 5347230 (1994-09-01), Noro
Kanaya Masahito
Makino Takahisa
Sakuma Yukinao
Suzuki Takeshi
Ueno Masakazu
Mottola Steven
Sanyo Electric Co,. Ltd.
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