Current detection circuit and protection circuit

Details Current detection circuit and protection circuit Current detection circuit and protection circuit

2008-07-01

2008-07-01

Sherry, Michael J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

Reexamination Certificate

active

07394635

ABSTRACT:
A disclosed current detection circuit includes a current/voltage converting element for generating a voltage in accordance with an input current, a reference voltage generation circuit for generating a reference voltage, the reference voltage generation circuit having an element configuration for setting a predetermined temperature characteristic to the reference voltage, and a comparator for outputting an output signal in accordance with a magnitude relation between a voltage converted in the current/voltage converting element and the reference voltage generated in the reference voltage generation circuit.

REFERENCES:
patent: 4263519 (1981-04-01), Schade, Jr.
patent: 5559500 (1996-09-01), Kase
patent: 5611318 (1997-03-01), Kesler
patent: 5703476 (1997-12-01), Merlo et al.
patent: 6040720 (2000-03-01), Kosiec
patent: 6144248 (2000-11-01), Oosugi et al.
patent: 6239581 (2001-05-01), Yoshida
patent: 6489836 (2002-12-01), Yeong
patent: 06-188641 (1994-07-01), None

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