1. Design and Implementation of 150 W AC/DC LED Driver with Unity Power Factor, Low THD, and Dimming Capability
- Author
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Ngo Cao Cuong, Nguyen Dinh Tuyen, Nguyen Minh Huy, Nguyen Hoai Phong, Le Minh Phuong, and Ngo Thanh Tung
- Subjects
EMI filter ,Computer Networks and Communications ,Computer science ,020209 energy ,lcsh:TK7800-8360 ,Topology (electrical circuits) ,02 engineering and technology ,Power factor ,Integrated circuit ,Electromagnetic interference ,law.invention ,law ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering ,Diode ,power factor correction ,Total harmonic distortion ,business.industry ,020208 electrical & electronic engineering ,lcsh:Electronics ,Electrical engineering ,LED driver ,Power (physics) ,LED lamp ,Power rating ,LLC resonant converter ,Hardware and Architecture ,Control and Systems Engineering ,Harmonics ,Signal Processing ,business ,Voltage - Abstract
This paper presents the implementation of a two-stage light-emitting diode (LED) driver based on commercial integrated circuits (IC). The presented LED driver circuit topology, which is designed to drive a 150 W LED module, consists of two stages: AC-DC power factor correction (PFC) stage and DC/DC power converter stage. The implementation of the PFC stage uses IC NCP1608, which uses the critical conduction mode to guarantee a unity input power factor with a wide range of input voltages. The DC/DC power converter with soft-switching characteristics for the entire load range uses IC FLS2100XS. Furthermore, the design of an electromagnetic interference (EMI) filter for the LED driver and the dimming control circuit are discussed in detail. The hardware prototype, an LED lighting system, with a rated power of 150 W/32 V from a nominal 220 V/50 Hz AC voltage supply was tested to show the effectiveness of the design. The presented LED driver was tested for street lighting, and the experimental results show that the power factor (PF) was higher than 0.97, the total harmonics distortion (THD) was lower than 7%, and the efficiency was 91.7% at full load. The results prove that the performance of the presented LED driver complies with the standards: IEC61000-3-2 and CIRSP 15:2009.
- Published
- 2019
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