·     Distinguished Professor of NTHU, 8/2015

·     Chair Professor and Director of EPARC, 8/11-7/12

·     Chair Professor and Vice-president of NCCU, Director of EPARC, 1/10-7/11

·     Professor and Vice-president of NCCU, Director of EPARC, 9/08-12/09

·     Professor and Director of EPARC, 8/08-8/09

·     General Manager of E-TON Power Tech. Co., LTD., 8/07-7/08

·     Professor and Director of EPARC, 1/06-7/07

·     Professor and Director of PEARL, 8/03-12/05

·     Professor and Department Chair, 8/99-7/03

·     Associate Professor and Department Chair, 8/97-7/99

   All in the dept. of Electrical Engineering, National Chung Cheng University, Taiwan, ROC

·      Associate Professor, 8/93-7/97

        Dept. of Electrical Engineering, NCCU

·      Director, 8/93-12/05

        Power Electronics Applied Research Laboratory (PEARL), NCCU

·      In charge of totally 40 projects since 1993, which are categorized as follows:

·  Research on high performance electronic dimming ballasts

·  Investigation of striation effect in fluorescent lamps

·  Design and development of single-stage electronic ballasts

·  Analysis and design of single-stage converters for dimming ballast applications

·  Research on photovoltaic array powered lighting systems

·  Design and development of electrode drivers for plasma display panels (PDP)

·  Design and development of grid-connection photovoltaic power systems.

·  Development of an approach to synthesizing single-stage converters with power factor correction

·  Design and development of pulse-electric-field generators for processing

·  Design and development of electric stunner

·  Design and development of revolving electromagnetic fields for transdermal drug delivery

·  Development of control schemes for achieving partial active power filtering

·  Development of control schemes for parallel-inverter systems to achieve weighting-current distribution

·  Design and development of interleaving PFC IC and LED backlight driving IC for LCD panels.

·     Researcher, 2/93-8/93

       Industry Technology Research Institute, Sing-Chu, Taiwan, ROC

·  Research on high Power Factor electronic dimming ballasts

·     Research Associate, 6/92-1/93.

Illinois Power Application Center (IPAC), University of Illinois

·  Investigation of the system stability and sub-system interactions of an off-line power system, funded by NCR Corp.

·     Research Assistant, 1/90-6/92.

Department of Electrical Engineering and Computer Science, University of Illinois at Chicago (UIC)

·      Design and development of high power dc-dc converters for space applications, funded by Rocketdyne Division, Rockwell International

·     Teaching Assistant, 9/88-12/90

Department of Electrical Engineering and Computer Science, at UIC

·     System Engineer, 6/85-12/86

SAMPO Co., Ltd., Taipei, Taiwan

Development of graphic terminal systems, including hardware and firmware