Chief technology officer of Utek Advance Co., Ltd.
Dr. Liu currently managers a company to provide EMI solutions in Automotive application or other consumer electronics devices.

Biography: Hsing-Fu Liu (M’00-SM’08) received the M.S. degree in electrical engineering from Chung Yuan Christian university, Chungli, Taiwan, China, in 1991 and received Ph.D. degree at National Chiao-Tung University, Hsingchu, Taiwan, in 2005.
He was employed in the Computer and Communications Research Labs, Industrial Technology Research Institute, Hsinchu, from 1991 to 1995, where his research focused on soft-switching techniques, high-density dc/dc converter, and ac/dc power factor correction circuits. In 1995, he joined Philips Electronics, Chungli, Taiwan, as Senior Designer developing ac/dc and dc/dc power circuits for new model PC-monitors. In 1998, he joined Delta Electronics, Chungli, where he was involved in developing switching-mode rectifiers for communication power systems. From 2000 to 2004, he was with Analog Integrations Corporation, Hsinchu, as the Manager of the Application Engineering Department. From 2004 to 2017, he was with Macroblock, Inc., Hsinchu, as the Senior Manager of President office. His interests include high frequency soft-switching techniques, passive & active snubber circuits in dc/dc & ac/dc power converter, ac/dc power factor correction circuits, LED’s lighting power, EMI solutions and modeling simulation on power electronics.
Dr. Liu’s biography was recorded in Marquis Who’s Who in the World from 2008 to 2012. He received the medal of Nation Invention Award in the Chinese Innovation & Invention Society in Dec., 2013.

Speech Title: A reliable and cost effective design for single inductor & multi-outputs in LED driver circuit
Abstract: The presentation will propose an effective method which can achieve a uniform current sharing for multi-outputs and single inductor in LED lighting driver. The proposed method still has reliable and cost effective features. Currently, a multi-chip package for high power LED is gradually to be available in market. Unfortunately, there were many unexpected consequences such as current imbalance between channels, LED thermal runaway or LED burned out. The presentation will disclose how it can solve the potential issues.