A LED driver based on the data clock regeneration design

Longcheng Que; Yiying Du; Yun Zhou; Jian Lv; Yadong Jiang

doi:10.1117/12.971208

15 October 2012 A LED driver based on the data clock regeneration design

Longcheng Que, Yiying Du, Yun Zhou, Jian Lv, Yadong Jiang

Proceedings Volume 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy; 841927 (2012) https://doi.org/10.1117/12.971208
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

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.

Citation Download Citation

Longcheng Que, Yiying Du, Yun Zhou, Jian Lv, and Yadong Jiang "A LED driver based on the data clock regeneration design", 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); https://doi.org/10.1117/12.971208

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