Drive circuit of switch and relay circuit

Details Drive circuit of switch and relay circuit Drive circuit of switch and relay circuit

2006-10-31

2006-10-31

Jackson, Stephen W. (Department: 2836)

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

Reexamination Certificate

active

07130177

ABSTRACT:
A drive circuit and relay circuit using this drive circuit are provided, the drive circuit including: a first terminal connected to a drive electrode located at one side of a mechanical switch contact driven by static electricity; a second terminal connected to a drive electrode located at the other side of the switch contact; a photoelectromotive force element connected to the first terminal and the second terminal, optically coupled to a light emitting element, and including at least two photodiode arrays which are serially connected; and an electronic inductor circuit (bypass circuit) connected in parallel with at least one of the photodiode arrays in the photoelectromotive force element.

REFERENCES:
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patent: 5514996 (1996-05-01), Aizawa
patent: 6546798 (2003-04-01), Waters et al.
patent: 6604641 (2003-08-01), Wolf et al.
patent: 6636653 (2003-10-01), Miracky et al.
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patent: 7030416 (2006-04-01), Kitagawa et al.
patent: 2004/0061106 (2004-04-01), Kitagawa et al.
patent: 2004/0124339 (2004-07-01), Kato et al.
patent: 2002-236265 (2002-08-01), None

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