Track 2 Afternoon
The Ins and Outs of Pulse-width-modulated (PWM) Switched-inductor Power Supplies
Abstract
Switched-inductor power supplies are pervasive in electronics. This is because they deliver a large fraction of the power they draw from the input source with an output current or voltage that is largely independent of the load. Keeping the output current or voltage steady this way is ultimately the responsibility of the feedback controller. This talk uses insight and intuition to show how pulse-width-modulated (PWM) loops switch the inductor and offset the current or voltage they control. The presentation reviews the feedback response of switched inductors and discusses how PWM loops operate, control, and offset the current or voltage they regulate. The material covers current and voltage loops, current-mode voltage loops, compensation and load-dump response, and compact contractions.
Speaker
Prof. Gabriel A. Rincón-Mora
Motorola Solutions Foundation Professor
Georgia Institute of Technology
Gabriel A. Rincón-Mora is Motorola Solutions Foundation Professor, Fellow of the National Academy of Inventors, Fellow of the IEEE, and Fellow of the Institution of Engineering and Technology. He was with Texas Instruments in 1994–2004 and has been with Georgia Tech since 1999. He's received the National Hispanic in Technology Award, Charles E. Perry Visionary Award, IEEE Joseph M. Biedenbach Outstanding Engineering Educator Award, Distinguished Faculty Achievement Award, Orgullo Hispano Award, IEEE Outstanding Educator Award, Three-Year Patent Award, Hispanic Heritage Award, State of California Commendation Certificate, and IEEE Service Award. His body of work includes 12 books, 8 handbooks, 4 book chapters, 44 patents, over 200 articles, 25 educational videos, over 26 commercial power-chip products released to production, & over 160 keynote addresses, distinguished lectures, & research seminars. URL: rincon-mora.gatech.edu.
