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:
Jul. 24, 2007
Filed:
Dec. 15, 2005
Applicants:
Timothy Chen, Aurora, OH (US);
Didier Rouaud, Roanoke, VA (US);
James K. Skully, Wllloughby, OH (US);
Inventors:
Timothy Chen, Aurora, OH (US);
Didier Rouaud, Roanoke, VA (US);
James K. Skully, Wllloughby, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 39/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ballast lamp circuit and method of operation is disclosed. The ballast lamp circuit comprising an inverter circuit and cathode heating circuit, wherein a lamp current, generated by the inverter circuit, is inversely proportional to a lamp cathode voltage generated by the cathode heating circuit.