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Proceedings Paper

A LED driver based on the data clock regeneration design
Author(s): Longcheng Que; Yiying Du; Yun Zhou; Jian Lv; Yadong Jiang
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Paper Abstract

Recent years witnessed that LEDs have been widely used in many consumer electronics and other areas. However, many applications require a large number of LED cascade drives. When LED driver IC drives cascaded LEDs, the cascade length is often limited because of the insufficient drive capability of the data clock. Once the technology of data clock regeneration is applied in LED driver chip, Signal drive capability is effectively enhanced by the data clock regeneration, thus the cascade length is greatly increased. After the algorithm of data clock regeneration is verified in Quartus II, the circuit and layout of LED driver are designed in Cadence using this technology. In product test, LED driver based on the data clock regeneration drives more than 2,000 points cascaded LEDs at 25 MHz clock. LED drivers with this technique are suitable for a variety of large-scale cascaded LEDs.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy, 841927 (15 October 2012); doi: 10.1117/12.971208
Show Author Affiliations
Longcheng Que, Univ. of Electronic Science and Technology of China (China)
Yiying Du, Univ. of Electronic Science and Technology of China (China)
Yun Zhou, Univ. of Electronic Science and Technology of China (China)
Jian Lv, Univ. of Electronic Science and Technology of China (China)
Yadong Jiang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 8419:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
Yadong Jiang; Junsheng Yu; Zhifeng Wang, Editor(s)

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