Fundamentals of Switch-Mode Power-Converter Design

Abstract- Switched-mode power converters are very popular in power management IC designs for voltage conversions and are widely adopted for today’s smart phones and tablets thanks to their high power-conversion efficiency and high-output-power capability. Their applications also include high-voltage and high-power automotive systems, LED lighting, and renewable energy systems. In this tutorial, switched-mode power-converter fundamentals and the design of CMOS switched-mode power converters will be covered. Topics include an overview of non-isolated power-converter topologies such as buck, boost, and non-inverting buck-boost; loss analysis and comparisons between continuous and discontinuous conduction-mode operations; different control schemes; and frequency compensation between voltage-mode and current-mode operations. Topics also include detailed circuit implementations of building blocks like FET-based and filter-based current sensors, dead-time control and gate drivers and the state-of-the-art designs. Practical design examples are used throughout the presentation. Advanced topic includes the discussions of three-level converters.
Bio - Hoi Lee received the B.Eng., M.Phil., and Ph.D. degrees in Electrical and Electronic Engineering from the Hong Kong University of Science and Technology. Since 2005, he has been with the Department of Electrical and Computer Engineering, the University of Texas at Dallas, Richardson, TX, where he is a Professor. His research interests include power-management integrated circuits, power-converter topologies and control methodologies, wireless power and energy-harvesting circuits, and analog and mixed-signal integrated circuits.
Dr. Lee serves as an Associate Editor of IEEE Transactions on Circuits and Systems-I Regular Papers. He is also on the Technical Program Committees of ISSCC, CICC, and ISPSD. He has authored or coauthored over 100 peer-reviewed conference and journal papers. He received 2011 NSF CAREER Award and was the recipient of the CICC 2002 Best Student Paper Award.