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:
Mar. 24, 2009
Filed:
Jul. 17, 2007
Peter Green, Redondo Beach, CA (US);
Peter Green, Redondo Beach, CA (US);
International Rectifier Corporation, El Segundo, CA (US);
Abstract
A ballast control circuit for driving at least one gas discharge lamp in accordance with an embodiment of the present application includes a high side driver operable to provide a high side driving signal to a high side switch of a half bridge controlled by the ballast control circuit, wherein the high side driving signal indicates a preferred duty cycle for the high side switch, a low side driver operable to provide a low side driving signal to a low side switch of the half bridge, wherein the low side driving signal indicates a preferred duty cycle for the low side switch and a dead time control circuit operable to provide a dead time signal that indicates a dead time during which both the high side and low side switches are turned OFF, wherein the dead time is set based on a value of an external dead time resistor.