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:
Jan. 13, 2004
Filed:
Jun. 04, 2002
Timothy Chen, Aurora, OH (US);
James K. Skully, Willoughby, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
An HID ballast is powered by a power source to control a load. The HID ballast includes a switching section connected to a first bus and a second bus, and further configured to output a high-frequency voltage signal. A bridge converter section includes a first leg having first and second series connected bridge diodes and a second leg having third and fourth series connected bridge diodes. Each leg is connected to the first bus, and the second bus, and is configured to receive an input signal from the power source. The input signal is converted into a form usable by the switching section. The bridge converter section is integrated with the switching section to provide the usable signal to the switching section, and to contribute to the operation of the switching section. An active switching system is configured to provide a desired balance between the input and output power to maintain the HID ballast in a balanced state while the load transitions from a start to a steady state operation.