The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2002
Filed:
Jul. 20, 2000
Applicant:
Inventor:
Jeff Duve, Efland, NC (US);
Assignee:
Cooper Industries, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/982 ;
U.S. Cl.
CPC ...
H01J 1/982 ;
Abstract
An improved circuit for activating a high side mosfet drive during a predetermined phase of the A/C cycle. The circuit includes an electronic switch which is connected to an A/C line. The switch operates between an open and closed position. Also included is a mosfet drive connected to the A/C line. The mosfet drive is activated when the switch is in an open position and is deactivated when the switch is in a closed position. The circuit may also include a capacitor connected to the A/C line. The capacitor is charged during the positive phase of the A/C cycle and powers the mosfet drive during the negative portion of the A/C cycle when the switch is in an open position.