Digital-dimming controller with current spikes elimination technique for LCD backlight electronic ballast

Chang Hua Lin; Ying Lu; Kai Jun Pai

doi:10.1109/APEC.2004.1295803

Digital-dimming controller with current spikes elimination technique for LCD backlight electronic ballast

Chang Hua Lin^*, Ying Lu, Kai Jun Pai

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

11 Citations (Scopus)

Abstract

A novel simple control method to improve the ignition behavior of cold cathode fluorescent lamp in digital-dimming mode is proposed in this paper. To extend the lamp life, we realize a digital-dimming controller with current spikes elimination technique (DDC-CSET) to reduce the high ignition voltage and to eliminate the ignition current spike. The half-bridge resonant inverter is employed in the presented backlight system to promote the system efficiency. Complete analysis and design considerations are discussed in detail in this paper. Experimental results are close to the theoretical prediction. The overall efficiency of the system achieved at the rated power is over 91%. The ignition voltage is reduced about 30% without any lamp current spike occurred under digital-dimming operation.

Original language	English
Pages	153-158
Number of pages	6
DOIs	https://doi.org/10.1109/APEC.2004.1295803
Publication status	Published - 2004
Externally published	Yes
Event	19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004 - Anaheim, CA., United States Duration: 2004 Feb 22 → 2004 Feb 26

Conference

Conference	19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004
Country/Territory	United States
City	Anaheim, CA.
Period	2004/02/22 → 2004/02/26

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/APEC.2004.1295803

Cite this

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title = "Digital-dimming controller with current spikes elimination technique for LCD backlight electronic ballast",

abstract = "A novel simple control method to improve the ignition behavior of cold cathode fluorescent lamp in digital-dimming mode is proposed in this paper. To extend the lamp life, we realize a digital-dimming controller with current spikes elimination technique (DDC-CSET) to reduce the high ignition voltage and to eliminate the ignition current spike. The half-bridge resonant inverter is employed in the presented backlight system to promote the system efficiency. Complete analysis and design considerations are discussed in detail in this paper. Experimental results are close to the theoretical prediction. The overall efficiency of the system achieved at the rated power is over 91%. The ignition voltage is reduced about 30% without any lamp current spike occurred under digital-dimming operation.",

author = "Lin, {Chang Hua} and Ying Lu and Pai, {Kai Jun}",

year = "2004",

doi = "10.1109/APEC.2004.1295803",

language = "English",

pages = "153--158",

note = "19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004 ; Conference date: 22-02-2004 Through 26-02-2004",

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TY - CONF

T1 - Digital-dimming controller with current spikes elimination technique for LCD backlight electronic ballast

AU - Lin, Chang Hua

AU - Lu, Ying

AU - Pai, Kai Jun

PY - 2004

Y1 - 2004

N2 - A novel simple control method to improve the ignition behavior of cold cathode fluorescent lamp in digital-dimming mode is proposed in this paper. To extend the lamp life, we realize a digital-dimming controller with current spikes elimination technique (DDC-CSET) to reduce the high ignition voltage and to eliminate the ignition current spike. The half-bridge resonant inverter is employed in the presented backlight system to promote the system efficiency. Complete analysis and design considerations are discussed in detail in this paper. Experimental results are close to the theoretical prediction. The overall efficiency of the system achieved at the rated power is over 91%. The ignition voltage is reduced about 30% without any lamp current spike occurred under digital-dimming operation.

AB - A novel simple control method to improve the ignition behavior of cold cathode fluorescent lamp in digital-dimming mode is proposed in this paper. To extend the lamp life, we realize a digital-dimming controller with current spikes elimination technique (DDC-CSET) to reduce the high ignition voltage and to eliminate the ignition current spike. The half-bridge resonant inverter is employed in the presented backlight system to promote the system efficiency. Complete analysis and design considerations are discussed in detail in this paper. Experimental results are close to the theoretical prediction. The overall efficiency of the system achieved at the rated power is over 91%. The ignition voltage is reduced about 30% without any lamp current spike occurred under digital-dimming operation.

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M3 - Paper

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T2 - 19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004

Y2 - 22 February 2004 through 26 February 2004

ER -

Digital-dimming controller with current spikes elimination technique for LCD backlight electronic ballast

Abstract

Conference

ASJC Scopus subject areas

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