Majority voted optical power switch

Details Majority voted optical power switch Majority voted optical power switch

1995-09-29

1998-05-19

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

250214SW, 326 11, 307115, H03K 19003

Patent

active

057539278

ABSTRACT:
A majority voted multiple-fault tolerant power switch for delivering power from a power source to an intended load. The power switch includes an optical voter, which has a photo conductor array for receiving optical voter input commands from a control system and for selecting a voter output from the majority of the input commands. An electronic power switch receives power input from the power source. The power switch is controlled by the voter output. An output from the power switch is connected to the intended load. A voltage source supplies the voltage to the optical voter. An operational amplifier circuit is connected to the electronic power switch to limit over current and inhibit reverse current in the electronic power switch.

REFERENCES:
patent: 4697093 (1987-09-01), Sutherland et al.
patent: 4726026 (1988-02-01), Hilford et al.
patent: 4799140 (1989-01-01), Dietz et al.
patent: 4868826 (1989-09-01), Smith et al.
patent: 5280202 (1994-01-01), Chan et al.
patent: 5498912 (1996-03-01), Templeman et al.

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