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:
Nov. 25, 2008
Filed:
Sep. 05, 2006
Xiaoli Yao, Shanghai, CN;
Rajendra Kumar Pokharna, Columbia, MD (US);
Viktor Karoly Varga, Solon, OH (US);
Chao Yang, Shanghai, CN;
Yingqi Zhang, Shanghai, CN;
Xiaoli Yao, Shanghai, CN;
Rajendra Kumar Pokharna, Columbia, MD (US);
Viktor Karoly Varga, Solon, OH (US);
Chao Yang, Shanghai, CN;
Yingqi Zhang, Shanghai, CN;
General Electric Company, Niskayuna, NY (US);
Abstract
A circuit such as may be used for igniting and operating a gas discharge lamp is provided. The circuit includes a resonant circuit connected to receive a variable voltage output signal from an inverter. The resonant circuit includes a first circuit stage and a second circuit stage. The second circuit stage includes a resonant tank circuit configured to generate a resonant output voltage when a switching frequency of the inverter matches a resonant frequency of the resonant circuit. The first circuit stage includes at least one current-suppressing element for reducing an effect of a resonant current that flows in the resonant circuit on a switching current that flows in the inverter.