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Events for February 19, 2010
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Embracing the Power of Digital Logic for Future Mixed-Signal ICs
Fri, Feb 19, 2010 @ 10:00 AM - 11:30 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Presented by Mike ChenAbstract:
Over the years, the main stream CMOS technology has been scaling in favor of digital circuits at an explosive speed. It imposes increasing design constraints for analog circuits, such as lower supply voltages, lower gain, leakage currents, and noise, etc. On the other hand, the future radios will demand higher complexity and tighter circuit specifications. Driven by these trends, a new design philosophy is proposed to redefine analog circuit topologies that involve an architectural rethinking, utilizing almost free digital circuits and faster device speed. In this talk, we will examine such opportunities specifically in the mixed-signal IC area. We will use phase locked loop (PLL) and analog-to-digital converter (ADC) as case studies, which are critical components to enable future complex system-on-chip (SOC) and mostly-digital system architectures. In both cases, the performance and cost are substantially improved by adopting the new design philosophy.Biography:
Mike Shuo-Wei Chen received the B.S. degree from National Taiwan University in 1998, and the M.S. and Ph.D. degree from the University of California, Berkeley in 2002 and 2006, all in Electrical Engineering. Since 2006, he has been working on mixed-signal and RF circuits for WLAN radios in Atheros communications. His current research interests include analog and mixed-signal ICs, communication system designs, and signal processing techniques for circuits and systems. Dr. Chen achieved an honourable mention in Asian Pacific Mathematics Olympiad, 1994. He was the recipient of UC Regents' Fellowship at UC Berkeley in 2000 and Analog Devices Outstanding Student Award in 2006.
Location: Grace Ford Salvatori Hall Of Letters, Arts & Sciences (GFS) - 101
Audiences: Everyone Is Invited
Contact: Hazel Xavier
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Modeling, Control and Optimization of Integrated Fuel Cell Power Systems
Fri, Feb 19, 2010 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Jing Sun
University of Michigan, Ann Arbor
Abstract:
Integrated fuel cell power systems, especially those incorporating energy recuperating devices, are often characterized by
synergetic interactions of heterogeneous subsystems; tight chemical, thermal, mechanical, and electrical couplings; and
complex and challenging control tasks. To maintain high efficiency, these systems often operate on or close to their
admissible boundary. In addition, there are many operational constraints, such as continuous fuel cell reactant supply and
reactor temperature limits, that have to be strictly enforced during transient operations.
In this presentation, we will discuss our recent research and development activities on modeling and control of integrated
solid oxide fuel cell (SOFC) power systems. We have focused our effort on developing control methodologies and tools that
can assure both highly efficient steady state operations and fast and safe transients. Control-oriented modeling for the
SOFC system will be discussed, in conjunction with the control development results. Dynamic analysis and control design of
a hybrid SOFC and gas turbine power system will be presented. Real-time simulation and optimization efforts will also be
covered.
Bio:
About the speaker: Prof. Jing Sun received her Ph. D degree from University of Southern California in 1989. From 1989-1993, she was an assistant professor in the Electrical and Computer Engineering Department at Wayne State University.
She joined Ford Research Laboratory in 1993, where she worked on advanced powertrain system controls. After spending
almost 10 years in industry, she came back to academia in 2003 and joined the Naval Architecture and Marine Engineering
Department at the University of Michigan where she is a professor now. She holds 35 US patents and has co-authored (with
Petros Ioannou) a textbook on Robust Adaptive Control. She is an IEEE Fellow and one of the three recipients of the 2003
IEEE Control System Technology Award.
Host: Petros IoannouLocation: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Shane Goodoff
