DocumentCode
1880537
Title
Applying one-comparator counter-based sampling to current sharing control of multi-channel LED strings
Author
Hwu, K.I. ; Yau, Y.T.
Author_Institution
Dept. of Electr. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan
fYear
2010
fDate
21-25 Feb. 2010
Firstpage
737
Lastpage
742
Abstract
In this paper, a fully-digitalized current sharing strategy without any analog-to-digital converter (ADC) is presented and applied to light-emitting diode (LED) lighting. By doing so, the cost for digital control is reduced significantly. Above all, the proposed current sharing method has the capability of resisting variations in input voltage and component parameter. And this is verified by experiments and very suitable for LED street lighting.
Keywords
current comparators; electric current control; light emitting diodes; lighting control; ADC; analog-to-digital converter; current sharing control; current sharing method; digital control; multichannel LED strings; one-comparator counter-based sampling; AC-DC power converters; Analog-digital conversion; Buck converters; Circuits; Costs; Digital control; LED lamps; Light emitting diodes; Sampling methods; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE
Conference_Location
Palm Springs, CA
ISSN
1048-2334
Print_ISBN
978-1-4244-4782-4
Electronic_ISBN
1048-2334
Type
conf
DOI
10.1109/APEC.2010.5433588
Filename
5433588
Link To Document