Invention Grant
- Patent Title: System and method for active power factor correction and current regulation in LED circuit
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Application No.: US15531458Application Date: 2015-11-29
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Publication No.: US10178718B2Publication Date: 2019-01-08
- Inventor: Rajesh Swaminathan , Abhisek Khare , Hrishikesh Bhagwat , Sumon K Bose , Krishnadas Bhagwat , Somnath Samantha , Ramesh G Karpur
- Applicant: GLOBALFOUNDRIES INC.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Horizon IP Pte Ltd.
- Priority: IN5987/CHE/2014 20141129
- International Application: PCT/IB2015/059190 WO 20151129
- International Announcement: WO2016/084051 WO 20160602
- Main IPC: G05F1/00
- IPC: G05F1/00 ; H05B41/16 ; H05B33/08 ; G05F1/70 ; H05B37/02 ; H05B37/03
Abstract:
The present invention discloses a system and method for active power factor correction and current regulation in led circuit. The system (100) used in the LED driver circuit performs active PFC and current regulation through the dynamic input current wave shaping by limiting peak currents. The dynamic wave 5 shaping scheme is realized through hardware and firmware and is used to strike an optimal balance between current accuracy, Power factor, THD and peak inductor currents. The system (100) is versatile enough to improve PF and current accuracy in LED circuits and indimmers circuits.
Public/Granted literature
- US20170273153A1 A SYSTEM AND METHOD FOR ACTIVE POWER FACTOR CORRECTION AND CURRENT REGULATION IN LED CIRCUIT Public/Granted day:2017-09-21
Information query
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