Switch for selectively coupling a power supply to a power bus

Details Switch for selectively coupling a power supply to a power bus Switch for selectively coupling a power supply to a power bus

1991-02-13

1992-10-20

Hudspeth, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072962, 36518909, H03K 1710

Patent

active

051572800

ABSTRACT:
A switching circuit for selectively coupling a first power supply to a power bus includes a first input terminal for connection to the first power supply and a means for coupling said first input terminal to a first node. A first transistor has a first source/drain region coupled to the first node and a second source/drain region coupled to the power bus. The first transistor is on in response to a first control signal applied to its gate to couple the first node to the power bus. A bias circuit is coupled to the substrate of the first transistor to prevent forward biasing of a junction between its substrate and its second source/drain region when the first transistor is on.

REFERENCES:
patent: 4555644 (1985-11-01), Devecchi et al.
patent: 4689495 (1987-08-01), Liu
patent: 4716303 (1987-12-01), Mimoto
patent: 4716313 (1987-12-01), Hori et al.
patent: 4791317 (1988-12-01), Winnerl et al.
patent: 4916334 (1990-04-01), Minagawa et al.
patent: 5045716 (1991-09-01), Takacs et al.

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