UNRAVELING FEEDBACK TRANSLATIONS

#feedback #translations #stability #loop #gain #dynamics
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Power supplies and other analog systems rely on feedback translations for control and stability. With sufficient loop gain, these translations are largely independent of loop gain and loop dynamics. Complex feedback systems, however, often lose the phase and gain margin they need for stable operation when loop gain is high. Unfortunately, understanding how these feedback systems behave and translate signals when loop gain is not high is largely algebraic and abstract. This talk introduces a new way of viewing and analyzing these feedback systems that is more intuitive and insightful. The presentation uses this method to show how looped amplifiers translate signals across frequency when forward gain and feedback translations alternate dominance. Understanding, innovating, and designing feedback and mixed translations this way is more straightforward.



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  • Date: 09 Jun 2022
  • Time: 07:00 PM to 08:00 PM
  • All times are (GMT-05:00) US/Eastern
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  • CASS Chapter, Philadelphia Section
  • 11 Bala Avenue
  • Bala Cynwyd, Pennsylvania
  • United States 19004
  • Building: CASS Chapter, Philadelphia Section, 11 Bala Avenue

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  • Starts 07 March 2022 09:59 PM
  • Ends 09 June 2022 06:00 PM
  • All times are (GMT-05:00) US/Eastern
  • No Admission Charge


  Speakers

Dr. Rincon-Mora Dr. Rincon-Mora of GEORGIA INSTITUTE OF TECHNOLOGY

Topic:

UNRAVELING FEEDBACK TRANSLATIONS

Power supplies and other analog systems rely on feedback translations for control and stability. With sufficient loop gain, these translations are largely independent of loop gain and loop dynamics. Complex feedback systems, however, often lose the phase and gain margin they need for stable operation when loop gain is high. Unfortunately, understanding how these feedback systems behave and translate signals when loop gain is not high is largely algebraic and abstract. This talk introduces a new way of viewing and analyzing these feedback systems that is more intuitive and insightful. The presentation uses this method to show how looped amplifiers translate signals across frequency when forward gain and feedback translations alternate dominance. Understanding, innovating, and designing feedback and mixed translations this way is more straightforward.

Biography:

Dr. Gabriel Alfonso Rincón-Mora is a Fellow of the National Academy of Inventors, Fellow of the IEEE, and Fellow of the Institution of Engineering and Technology. He was Design Team Leader at Texas Instruments in 1994–2003, Adjunct Professor at the Georgia Institute of Technology (Georgia Tech) in 1999–2001, Assistant/Associate/Full Professor at Georgia Tech since 2001, Director of the Georgia Tech Analog Consortium in 2001–2004, Director of the TI Analog Fellowship Program in 2001–2015, and Visiting Professor at National Cheng Kung University in Taiwan in 2011–2019. He was inducted into Georgia Tech's Council of Outstanding Young Engineering Alumni and named one of "The 100 Most Influential Hispanics" by Hispanic Business magazine. Other distinctions include the National Hispanic in Technology Award, Charles E. Perry Visionary Award, Three-Year Patent Award, Orgullo Hispano Award, Hispanic Heritage Award, State of California Commendation Certificate, IEEE Service Award, and included in "List of Notable Venezuelan Americans" in Science. His scholarly output includes 11 books, 8 handbooks, 4 book chapters, 42 patents issued, over 190 articles, 25 educational videos, over 26 commercial power-chip products released to production.

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