Dr Xun Liu (ConvenientPower Systems) and Dr Toine Staring (Philips Research)
Title: " The past, present and future trends of Qi "
Abstract — Wireless Power Consortium (WPC) is the only commercially successful standardization organization for wireless power. In the first half of this speech, Dr. Xun (Ken) Liu gives the brief history introduction of WPC, and from technology point of view answers the question why WPC is successful. Standardizing the prototype and engineering the prototype into mass market product are incredibly hard.
In the second half of the speech, Dr. Toine Staring gives a more detailed introduction on a new method and trend in WPC’s Qi Specification. Today the Specification rests on an increasingly large number of power transmitter designs, which are contributed by individual companies. Each new design has to go through a lengthy interoperability testing process to verify that it is compatible with all Qi-certified power receiver products. To alleviate the burden this puts on new product introductions, and especially on those that use a design not yet approved into the Qi Specification, the WPC’s power interface task force aims to improve the Specification by drafting general constraints on the design space. A proposed initial methodology uses a novel way of visualizing the design space that can be derived from a simple first-harmonic approach based model.
Biography — Dr Xun Liu (Chief Technology Officer, ConvenientPower Systems) received his B.S. and M.S. degrees in electrical engineering from Tsinghua University, Beijing, China, in 2001 and 2003, respectively, and the Ph.D. degree from the City University of Hong Kong in 2007. He joined ConvenientPower (HK) Ltd in Hong Kong in 2007. From December 2008, he also serves as Vice-Chair of Specification Work Group in the Wireless Power Consortium which published ‘Qi’, the global wireless power standard in August 2010. The world first Qi-compliant product which was certified in September 2010 was designed and produced by ConvenientPower (HK) Ltd which is now a part of ConvenientPower Systems. Into Qi standard, he introduced many world first Qi compliant and compatible technology platforms, like resonant ‘TxR2’, ‘TxR3’, ‘WoWz’ and the world’s first simultaneous charging of five Qi mobile phones ‘WoW5’.Dr Liu received 2009 IEEE Power Electronics Society Transaction Prize Paper Award, and is the inventor of 25 granted patents in US, China and Europe. He published over 30 papers in IEEE journals and conferences. Now he is a senior member of IEEE.
Biography — Dr. Toine Staring (Senior Scientist, Philips Research) received his M.S and Ph.D. degrees in Physics from Eindhoven University of Technology, The Netherlands, in 1988 and 1992, respectively. He joined Philips Research in 1990 as a Research Scientist where he has been involved in studies of single-electron effects in GaAs/AlGaAs nanostructuresm, multi-wavelength semiconductor lasers, copy protection systems for optical discs, and wireless power transfer systems. From 2008 he has been active as the lead technical editor and architect of the Wireless Power Consortium’s Qi Specification. From 2013 he has taken up the same role in the WPC’s development of a cordless kitchen specification. Moreover, he has served as specifications editor for the Zhaga and MD-SIG consortia between 2010 and 2016. In his career, he has been awarded over 40 patents and published several papers in journals and conferences.
Dr Ada Poon (Stanford University)
Title: " Wireless bioelectronics "
Abstract — Miniaturized electronics, when placed inside the body, can wirelessly monitor and modulate internal activity and thus hold promise as a new class of treatments for disorders. The development of such bioelectronic medicines requires wireless interfaces that are tiny and operate deep in a complex electromagnetic environment. In this talk, I will describe a new method for electromagnetic energy transfer that exploits near-field interactions with biological tissue to wirelessly power tiny devices anywhere in the body, including the heart and the brain. I will discuss engineering and experimental challenges to realizing such interfaces, including a pacemaker that is smaller than a grain of rice and a fully internalized neuromodulation platform. These devices can act as bioelectronic medicines, capable of precisely modulating local activity, that may be more effective treatments than drugs, which act globally throughout the body.
Biography — Ada received her B.Eng degree from the EEE department at the University of Hong Kong and her Ph.D. degree from the EECS department at the University of California at Berkeley in 2004. Upon graduation, she spent one year at Intel as a senior research scientist. Then, she joined her advisor’s startup company, SiBeam Inc., architecting Gigabit wireless transceivers leveraging millimeter-wave and MIMO technologies. After two years in industries, she returned to academic and joined the faculty of the ECE department at the University of Illinois, Urbana-Champaign. Since then, she has changed her research direction from wireless communications to integrated biomedical systems. In 2008, she moved back to California and joined the faculty of the Department of Electrical Engineering at Stanford University. She is a Terman Fellow at Stanford University. She received the Okawa Foundation Research Grant in 2010 and NSF CAREER Award in 2013. She is a Chan Zuckerberg Biohub investigator .
Dr Alanson Sample (Disney Research)
Title: " Pushing Beyond the Charging Pad: Exploring large-scale, 3D volume wireless charging using near-field magnetic coupling "
Abstract — Wireless power offers the promise of seamlessly charging our electronic devices as easily as data is transmitted through the air. However, existing solutions are limited to near contact distances or low delivered power levels and thus, do not provide the geometric freedom and ease of use the term “wireless” suggests. This talk presents an overview of several near-field wireless power transfer systems that explore ways to break the 2D charging pad model to create full 3-Dimensional charging solutions that can safely deliver large amounts of power over significant distances. Examples include, early work on the use of magnetically coupled resonance to achieve near constant efficiency as a function of distance and orientation and its application in consumer electronics and medical implants. More recent work on the use of resonant cavity mode enabled wireless power aims to control magnetic field distribution in order to provide uniform charging in a large chamber. Finally, we introduce Quasi-Static Cavity Resonance (QSCR) based wireless power, which can enable large purpose-built structures to generate near-field standing waves that safely deliver kilowatts of power to mobile receivers contained nearly anywhere within. An experimental demonstration shows that our 256 square foot, QSCR enabled room can deliver large amounts of power to small coil receivers in nearly any position with high efficiency, ultimately offering a seamless charging experience where a user’s device can be charged simply by entering the room.
Biography — Alanson Sample is the Executive Lab Director of Disney Research in Los Angeles and leads the Wireless Systems group. His research focuses on enabling new guest experiences and sensing systems by applying novel approaches to electromagnetics, RF and analog circuits, and embedded systems. Prior to joining Disney, he was a Research Scientist at Intel Labs in Hillsboro, OR working on energy harvesting for wearable and Internet of Things applications. He also held a postdoctoral research position in the Department of Computer Science and Engineering at the University of Washington. There, he developed methods of wirelessly powering implanted heart pumps, known as LVADs.
Alanson received his Ph.D. in Electrical Engineering in 2011 from the University of Washington. Throughout his graduate studies, he worked full-time at Intel Research Seattle where he published several articles and patents on the use of magnetically coupled resonance for wireless power delivery, as well as RFID and ambient RF energy harvesting. Alanson was one of the key contributors to the Wireless Identification and Sensing Platform, which was open-sourced as part of Intel’s WISP Challenge. His research interests lie broadly in the areas of wireless communication, embedded systems, interactive sensors, and Human Computer Interaction.
Dr Morris Kesler (WiTricity Corporation, USA)
Title: " Wireless Charging of Electric Vehicles "
Abstract — Wireless charging of electric vehicles (EVs) has been in development for several years in preparation for the growth in adoption of these vehicles. Wireless charging systems today offer an efficient, flexible means of charging EVs from multiple classes and at a range of power levels from a common ground source. Standardization activities are well underway to ensure compatibility between systems across vehicle makers and location. This paper provides a snapshot of wireless charging technology as applied to EVs.
Biography — Dr Morris Kesler is the Chief Technology Officer at WiTricity Corporation where he is responsible for the research and development activities in wireless power transfer technology across all application areas. He joined WiTricity in 2007 and has served as Chief Engineer and vice president of research and development.
Prior to joining WiTricity, he was a founder of Wide Net Technologies, Inc., which developed unique optical communication and sensing systems for both government and industry. His work at Wide Net Technologies involved secure high-speed communications systems for fiber and free space applications, and the development of novel nano-photonic devices for communications and sensing. From 2000 to 2003, Morris held the position of Consulting Engineer at PhotonEx Corporation, where he was responsible for transmission engineering and testing and played a key role in the development of the PhotonEx 40 Gb/s optical transport system. Morris spent ten years with the Georgia Tech Research Institute where he led research programs in electromagnetic scattering, antenna arrays, novel antenna structures and photonic band-gap structures. He held the position of Principal Research Engineer when he left. Morris was a post-doctoral fellow at the IBM Zurich Research Laboratory where he studied semiconductor quantum well lasers. He holds over 90 patents and has published over 40 technical journal and conference papers. He holds B.S., M.S., and Ph.D. degrees from the Massachusetts Institute of Technology in Electrical Engineering and Computer Science.