DocumentCode
2658335
Title
Highly efficient LED light driver with dimming control using delta sigma modulation
Author
Yoo, Sooyeub ; Um, Keehong ; Kim, HyungJun
Author_Institution
Dept. of R&D, Taesung Eco. Tech. Ltd., South Korea
fYear
2009
fDate
18-22 Oct. 2009
Firstpage
1
Lastpage
4
Abstract
This paper describes the LED dimming control system using ADPCM (adaptive differential pulse code modulation). ADPCM accurately controls the LED current with high resolution. The ADPCM also reduces the RFI (radio frequency intensity) because of spreading out the harmonic current of pulses. Additionally, this method makes it easier to increase the control accuracy.
Keywords
differential pulse code modulation; driver circuits; light emitting diodes; lighting control; LED light driver; adaptive differential pulse code modulation; delta sigma modulation; dimming control; harmonic current; high resolution; radio frequency intensity; Adaptive control; Adaptive systems; Control systems; Delta-sigma modulation; Light emitting diodes; Lighting control; Modulation coding; Programmable control; Pulse modulation; Radiofrequency interference;
fLanguage
English
Publisher
ieee
Conference_Titel
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location
Incheon
Print_ISBN
978-1-4244-2490-0
Electronic_ISBN
978-1-4244-2491-7
Type
conf
DOI
10.1109/INTLEC.2009.5351852
Filename
5351852
Link To Document