A behavioral model of a two-stage average-current-mode-controlled PFC converter for dimmable MR16 LED lamps

Author

Sungwon Yim ; Hyongmin Lee ; Suhwan Kim ; Bongjin Lee ; Kyucheol Kang

Author_Institution

Electr. & Comput. Eng., Seoul Nat. Univ., Seoul, South Korea

fYear

2013

fDate

17-19 Nov. 2013

Firstpage

380

Lastpage

383

Abstract

MR16 LED retrofit lamps can be made compatible with legacy dimmers by using drivers that employ power factor correction (PFC) to imitate a resistive load, and detect the conduction angle for dimming control. One possible design is a two-stage switching converter, in which the first stage performs PFC as well as detecting the conduction angle, and the second stage drives the LED, which is dimmed in proportion to the detected conduction angle. In this work, we modeled a driver circuit for dimmable MR16 LED lamps and verified operation of the design with different conduction angles through simulation.

Keywords

LED lamps; driver circuits; lamp accessories; power convertors; power factor correction; MR16 LED retrofit lamps; average current mode controlled PFC converter; dimmable MR16 LED lamps; driver circuit; legacy dimmers; light emitting diode; power factor correction; two stage PFC converter; Consumer electronics; Inductors; Integrated circuit modeling; LED lamps; Switches; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

SoC Design Conference (ISOCC), 2013 International

Conference_Location

Busan

Type

conf

DOI

10.1109/ISOCC.2013.6864056

Filename

6864056