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:
Jun. 28, 2016
Filed:
Nov. 24, 2014
Universal Lighting Technologies, Inc., Madison, AL (US);
Wei Xiong, Madison, AL (US);
Rohan Dayal, Madison, AL (US);
Universal Lighting Technologies, Inc., Madison, AL (US);
Abstract
A light fixture includes a surge protection circuit for a non-isolated DC-DC converter. The converter is coupled to a circuit ground and further provides output power to a light source chassis configured to house a light source. The chassis is coupled to earth ground. The surge protection circuit includes a voltage triggering device having a breakdown voltage value and coupled to either the circuit ground or an output of the converter. A first capacitor is coupled in series between the voltage triggering device and the earth ground, and a second capacitor is coupled in parallel with the voltage triggering device. The first capacitor is configured with a sufficiently large capacitance wherein a voltage across the first capacitor, and likewise a voltage between the chassis and the earth ground, is effectively clamped to a light source threshold value during a surge condition.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile