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. 11, 2008
Filed:
Jul. 26, 2006
Thomas Mayer, Wisconsin Dells, WI (US);
Glenn Garbowicz, Algonquin, IL (US);
Thomas Mayer, Wisconsin Dells, WI (US);
Glenn Garbowicz, Algonquin, IL (US);
Varon Lighting Group, LLC, Elmhurst, IL (US);
Abstract
The instant invention relates to an ignitor turn-off switch for ballasts for high intensity discharge (HID) lamps to prevent damage to ballasts by disconnecting the ignitor if a lamp has failed or is missing. The ignitor turn-off switch circuit comprises an AC power source, a full-wave bridge rectifier circuit, a voltage regulator circuit, a first solid state integrated circuit as a timer circuit, and a second solid state integrated circuit as a switch circuit. The second solid state integrated circuit comprises an optically-coupled triac and light emitting diode wherein the optically-coupled triac is driven by a beam generated by the light emitting diode.