Notice

October 31, 2018 / 16:00 ~ 17:15
 
Speaker : Prof. Dong Sam Ha
 
Abstract
 
Harvesting small scale energy from otherwise wasted ambient energy sources has attracted immense research interests in the era of IoT (Internet of Things). Typical energy harvesting sources include solar, thermal, kinetic, and radio frequency. The operating environment of ambient energy sources changes, and the energy level of typical ambient energy sources is low. They pose major design issues for energy harvesting circuits, which aim to maximize the energy flowing into storage devices such that rechargeable batteries or supercapacitors. This talk covers design of kinetic energy harvesting circuits including models of transducers, impedance matching, and maximum power point tracking.
 
 
Short Bio
 
Dong Sam Ha received a B.S. degree in electrical engineering from Seoul National University, Korea, and M.S. and Ph.D. degrees in electrical and computer engineering from the University of Iowa. Since Fall 1986, he has been a faculty member of the Department of Electrical and Computer Engineering, Virginia Tech. Currently, he is Professor and Director of Multifunctional Integrated Circuits and Systems (MICS) group with five faculty members and a member of Center for Energy Harvesting Materials and Systems (CEHMS) of Virginia Tech.
He specializes in low-power analog RF and IC design. His research interests include energy harvesting ICs, and high temperature RF circuits and systems. He is a Fellow of the IEEE.
 
 
Venue: 104 E204