Print Email Facebook Twitter Analysis and Design of MHz-range Wireless Power Transfer Systems for Implantable Devices Title Analysis and Design of MHz-range Wireless Power Transfer Systems for Implantable Devices Author Gutiérrez-Lázaro, L.C. Contributor Serdijn, W.A. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Department Microelectronics Programme Biomedical Electronics Laboratory Date 2013-11-28 Abstract Wearable and implantable devices are becoming more and more common as time goes by and one of the major bottlenecks in their development is the power delivery. In order to tackle this problem, energy harvesting arises an option to bring these devices one step closer to complete autonomy. Among the available mechanisms for harvesting, near-field inductive coupling appears as a good alternative due to the flexibility it offers in terms of size and output power. Although a certain level of maturity has been reached over the last decade, a sort of mysticism still exists around the wireless power transfer. To the author's best knowledge, none of the works found in literature addresses the entirety of the problem. Here, a comprehensive, generalized analysis and design are made starting from the from the very differentiation of the near and far-field regimes all the down to circuit design. Studying the inductively coupled interfaces allow us to estimate the performance of the link prior to any design attempt, serving as a very useful tool in the feasibility evaluation of certain application. In particular, models for the coupling factor and losses of the magnetic link are introduced. Emphasis is made on comparing the performance of the links in a resonant and non-resonant regime. An implantable device for neural stimulation/recording with a rechargeable Li-Ion as an energy storage is considered as our intended application. This requires us to realize an study of the impact of tissue in energy transfer and viceversa. From here, the circuit design of a wireless power transfer interface is presented. All circuit blocks necessary for transfer are designed and simulated, allowing us to have a complete overview of the system. Subject wirelesspowertransferinductivelinkcouplingDC/DC converterboost converterresonance To reference this document use: http://resolver.tudelft.nl/uuid:31ea2db8-7a12-4fc0-883e-4363dc76d159 Part of collection Student theses Document type master thesis Rights (c) 2013 Gutiérrez-Lázaro, L.C. Files PDF Thesis-LC-Gutierrez.pdf 3.29 MB Close viewer /islandora/object/uuid:31ea2db8-7a12-4fc0-883e-4363dc76d159/datastream/OBJ/view