Capacitor circuit with surge protection

Details Capacitor circuit with surge protection Capacitor circuit with surge protection

2008-03-18

2008-03-18

Ha, Nguyen T. (Department: 2831)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

C361S058000, C361S091200, C361S093100, C361S118000, C361S119000, C361S321100

Reexamination Certificate

active

07345861

ABSTRACT:
A capacitor circuit with surge protection that is selectively connected between a voltage source and a device includes a first capacitance element has one end that communicates with a first terminal of the voltage source. A first transistor has a first terminal that communicates with an opposite end of the first capacitance element and a second terminal that communicates with a second terminal of the voltage source. A control terminal of the first transistor communicates with a capacitor enable signal that provides a controlled turn-on to limit current surge and turns off the first transistor when voltage surge is detected.

REFERENCES:
patent: 5079455 (1992-01-01), McCafferty et al.
patent: 5532894 (1996-07-01), Sweaton
patent: 5598313 (1997-01-01), Gersbach
patent: 5621625 (1997-04-01), Bang
patent: 5796567 (1998-08-01), Botti et al.
patent: 6768619 (2004-07-01), Ker et al.
patent: 6927954 (2005-08-01), Boudreaux et al.

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