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. 20, 2018
Filed:
Mar. 23, 2016
Philips Lighting Holding B.v., Eindhoven, NL;
Tijmen Cornelis Van Bodegraven, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
The invention describes an isolated driver () comprising a converter module () realized to provide voltage and current output to a load (); a feedback arrangement () realized to monitor voltage and/or current during operation of the driver (); and a converter controller () for providing converter control signals (CI, CF, VCON) to the converter module (), and wherein the converter controller () comprises a single optocoupler () connected by input terminals to the feedback arrangement (); and a switching circuit arrangement () connected to output terminals of the optocoupler (), comprising a number of semiconductor switches (Q, Q, Q, . . . , Q) arranged to generate a converter control signal (CI, CF, VCON) for placing the converter module () of the driver () into a low-output mode (M) when a voltage across the optocoupler output terminals indicates a fault condition. The invention further describes an LED lighting arrangement () comprising such an isolated driver () for driving an LED lighting load () from a mains power supply (). The invention also describes a converter controller () for an isolated driver (), and a method of operating an isolated driver ().