Semiconductor integrated circuit having voltage limiter circuit

Details Semiconductor integrated circuit having voltage limiter circuit Semiconductor integrated circuit having voltage limiter circuit

1992-07-24

1995-01-17

Hoff, Marc S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 91, H02H 300

Patent

active

053830806

ABSTRACT:
A voltage limiter circuit is disposed in a semiconductor IC chip in order to reduce an operating voltage of an internal circuit of a scaled-down element. A small capacitance of a Vcc wiring by the disposition constitutes a resonance circuit together with an inductance of the Vcc wiring. Resonance at the resonance circuit causes large variation of a supply current and noise. An additional capacitance is connected between the Vcc wiring and a Vss wiring in order to suppress the variation and noise. The capacitance is formed by a PN junction and is connected in series to a damping resistance.

REFERENCES:
patent: 4731719 (1988-03-01), Nelson
patent: 4930112 (1990-05-01), Tanaka et al.

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