Fu Xiansong1,2, Zhu Shushuai2, 3, Niu Pingjuan2, 3
1. School of Electronics & Information Engineering Tianjin Polytechnic University Tianjin 300387 China 2. School of Electrical Engineering & Automation Tianjin Polytechnic University Tianjin 300387 China 3. Engineering Research Center of High Power Solid State Lighting Application System Ministry of Education, Tianjin Polytechnic University Tianjin 300387 China
Abstract：A 3W LED driving power supply that is built with the iW1696 is provided, in this paper. The LED driving power supply is a new low-cost digital control solution that maximizes the AC/DC flyback power supply efficiency. This intelligent digital approach achieves the combined benefits of high performance, low cost and high reliability in a single controller. An unique multiple PWM and PFM operational modes adaptively based on the power supply load changes is introduced. The multi-mode PWM/PFM control significantly improves the light-load efficiency and thus the overall average efficiency, and it does not bring compromise to other system performance.
付贤松, 朱恕帅, 牛萍娟. 基于IW1696的LED驱动电源设计[J]. 电工技术学报, 2013, 28(2增): 221-224.
Fu Xiansong, Zhu Shushuai, Niu Pingjuan. Based on IW1696 LED Drive Power Supply. Transactions of China Electrotechnical Society, 2013, 28(2增): 221-224.
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2013, Vol. 28 
