System having active pull-down circuit and method

Details System having active pull-down circuit and method System having active pull-down circuit and method

1996-03-01

1998-09-08

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

327430, 327431, 327309, 327327, H03K 1722

Patent

active

058050140

ABSTRACT:
The present invention relates to a circuit that pulls down the power supply line in an electronic system to a low state when the electronic system is turned off. More specifically, the present invention is an active circuit that establishes a low impedance between a power supply line and a return line when a system's power is turned off, and establishes a high impedance between a power supply line and a return line when the system is turned on.

REFERENCES:
patent: 2873387 (1959-02-01), Kidd
patent: 4645998 (1987-02-01), Shinohara et al.
patent: 4777623 (1988-10-01), Shimazu et al.
patent: 5361000 (1994-11-01), Koshikawa et al.
patent: 5412333 (1995-05-01), Okunaga

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