Controllable and Dimmable AC LED Driver Based on FPGA to Achieve High PF and Low THD

Author

Hwu, K.I. ; Tu, W.C.

Author_Institution

Inst. of Electr. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan

Volume

9

Issue

3

fYear

2013

fDate

Aug. 2013

Firstpage

1330

Lastpage

1342

Abstract

In this paper, a novel bridgeless light-emitting diode (LED) driver with dimmable control is presented. By the proposed control circuit based on digital control using the field programmable gate array (FPGA), the total harmonic distortion (THD) and power factor (PF) of the proposed LED driver are significantly improved as compared with the traditional LED drivers. The proposed AC LED driver is capacitorless and inductorless in the main power stage, thereby causing the integrated circuit design to be easy to achieve and the life of the LED driver to be enhanced. In this paper, the basic operating principle of the LED driver is described in detail, along with some experimental results to demonstrate the effectiveness of the proposed LED driver.

Keywords

digital control; driver circuits; field programmable gate arrays; harmonic distortion; light emitting diodes; power factor; AC LED driver; FPGA; THD; basic operating principle; bridgeless light-emitting diode driver; capacitorless; control circuit; digital control; dimmable control; field programmable gate array; inductorless; integrated circuit design; power factor; total harmonic distortion; Capacitors; Light emitting diodes; Lighting; Rectifiers; Resistors; Topology; Voltage control; AC LED driver; FPGA; LED dimming; bridgeless; capacitorless; digital control; inductorless; power factor; total harmonic distortion;

fLanguage

English

Journal_Title

Industrial Informatics, IEEE Transactions on

Publisher

ieee

ISSN

1551-3203

Type

jour

DOI

10.1109/TII.2012.2226042

Filename

6336814