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:
Jul. 09, 2019
Filed:
Nov. 29, 2015
System and method to regulate primary side current using an event driven architecture in led circuit
Globalfoundries Inc., Grand Cayman, KY;
Abhisek Khare, Bangalore, IN;
Somnath Samantha, Bangalore, IN;
Krishnadas Bhagwat, Bangalore, IN;
Sumon K Bose, Bangalore, IN;
Hrishikesh Bhagwat, Bangalore, IN;
Rajesh Swaminathan, Bangalore, IN;
Ramesh G Karpur, Bangalore, IN;
GLOBALFOUNDRIES Inc., Grand Cayman, KY;
Abstract
The present invention discloses system and method to regulate primary side current using an event driven architecture in LED circuit. The system () performs a primary side regulation (PSR) of isolated or non-isolated LED driver topology such as fly back system. The primary side peak voltage or current is regulated to achieve desired secondary side currents without the need of additional external components. The architecture combines firmware and hardware to realize PSR. The method () effectively combines input wave shaping (Active PFC), dimming and PSR to achieve accurate secondary side currents. The method () corrects the Peak Regulation Voltage or current (PRV) of primary loop to meet desired half cycle reference voltage or current, which in turn achieves the desired secondary loop current in LED circuit.