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Career

 
Professional Employment Experience
Senior Engineer  ( 4/2004 ~ present )
ABB    Power Electronics & Large Drives, Turgi, Switzerland
  • Development of 20MW next generation high power rectifier
  • Development of 5kA modular converter system(PEBB) for high power rectifier
  • Development of modular converter system(PEBB) for plasma arc torch
  • Study on power train system of hybrid electric vehicle for large trucks and buses
  • Efficiency analysis on MV inverter motor drive system
 
Summer Internship Engineer  ( 6/2003 ~ 8/2003 )
Otis Elevator    Drives Group, Engineering Center at Farmington in Connecticut, USA
  • Evaluated and tested the systematic characteristics of 75kW Matrix Converter.
  • Designed dead time compensation algorithm for Matrix Converter.
  • Designed unbalance input supply compensation algorithm for Matrix Converter
 
System Application Engineer  ( 2/1993 ~ 7/1998 )
Samsung Electronics    Semiconductor Division, Power Electronics Group, Korea
  • Evaluated the systematic characteristics of the power semiconductor devices during product development process.
  • Designed and developed the user-friendly application systems.
  • Performed the initial technique-oriented market promotion and customer support.
  • Played a significant technical role in achieving successful initial design-in promotions for a couple of major electronic appliance vendors such as Samsung, LG, Panasonic, HP, Apple, and Compaq.
  • Designed resonant converters and electronic ballast systems (KA7521, KA7522).
  • Designed power factor correction systems (KA7524, KA7531).
  • Designed off-line switching mode power supplies ranging 25 W ~ 300 W (SPS series).