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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yu-Kang Lo Kuan-Hung Wu Kai-Jun Pai Huang-Jen Chiu |
| Copyright Year | 1982 |
| Abstract | In this paper, a backlight module driver driving high-power red, green, and blue light-emitting diodes (RGB LEDs) for a 19-in liquid crystal display is proposed. The DC-DC series resonant converters (SRCs) with zero-voltage switching and constant-output-current control are implemented to drive the RGB LED arrays. Phase-shifted pulsewidth modulation dimming control is adopted to effectively narrow the load variations and improve the output voltage regulations of the SRCs. A DSP-based hysteresis control algorithm is performed to track the white-color point and the specified backlight luminance. Analysis and design considerations of the proposed drivers are presented in detail. Experimental results agree well with the theoretical predictions and confirm the validity of the proposed approach. |
| Sponsorship | IEEE Industrial Electronics Society |
| Starting Page | 4862 |
| Ending Page | 4871 |
| Page Count | 10 |
| File Size | 1353093 |
| File Format | |
| ISSN | 02780046 |
| Volume Number | 56 |
| Issue Number | 12 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-12-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Light emitting diodes Voltage control Liquid crystal displays Resonance DC-DC power converters Switching converters Zero voltage switching Space vector pulse width modulation Phase modulation Pulse modulation series resonant converter (SRC) Hysteresis control algorithm phase-shifted pulsewidth modulation (PSPWM) dimming red, green, and blue light-emitting diodes (RGB LEDs) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications |
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