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:
Oct. 04, 2016
Filed:
Oct. 02, 2014
Universal Lighting Technologies, Inc., Madison, AL (US);
Keith Davis, Madison, AL (US);
UNIVERSAL LIGHTING TECHNOLOGIES, INC., Madison, AL (US);
Abstract
A surge protection device provides a dimming control signal to an LED driving system upon failure of surge protection components. Impedance networks are coupled between respective first, second and third input lines for an AC mains. The impedance networks include thermal fuses and metal oxide varistors, with a dimming control circuit having a resistive network coupled between each respective series circuit of fuses and MOV's. The resistive network generates a 0-10V analog dimming signal to an LED device controller, wherein a lighting device operates in full lighting mode while the surge protection device is in normal, high impedance mode, but operates in a dimming mode when one or more of the impedance network devices fail and cause the 0-10V signal to drop below 10 volts. Detection of a dimmed but operable lighting device may serve as warning to an operator that the associated surge protection device component should be replaced.