Power circuit and semiconductor device including the same

Details Power circuit and semiconductor device including the same Power circuit and semiconductor device including the same

1994-06-20

1996-01-16

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327 73, 327543, G05F 110

Patent

active

054851173

ABSTRACT:
A power circuit is suitable for inclusion into a semiconductor apparatus, for example, and follows up the noise caused by the operation of an internal load circuit. When the voltage V.sub.DD applied to the internal circuit changes a relatively moderate amount due to such causes as the variation of an externally supplied power supply voltage V.sub.CC or the operation of the internal circuit, a negative feedback is applied to a variable resistance element by a voltage comparator and a variable resistance element driver. In response to an instantaneous variation of the internal circuit applied voltage V.sub.DD, the variation being caused by the operation of the internal circuit 100, for example, a rapid negative feedback is applied to the variable resistance element by a capacitor.

REFERENCES:
patent: 4559694 (1985-12-01), Yoh et al.
patent: 4649291 (1987-03-01), Konishi
patent: 4990847 (1991-02-01), Ishimaru et al.
patent: 5083043 (1992-01-01), Yoshida
IBM Technical Disclosure Bulletin vol. 31, No. 12, May 1989, New York, US, "Regulated On-Chip Voltage Converter", p. 192, paragraph 1--p. 194, paragraph 1; figures 1-2.
Patent Abstracts of Japan vol. 6, No. 183 (p. 143)(1061) 18 Jun. 1982 & JP-A-57 098 018 (Mitsubishi Denki K.K.).

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