Design and characterization of a power transfer inductive link for wireless sensor network nodes

This paper describes a design of a power transfer inductive link for charging batteries of wireless sensor network nodes. The application physical constraints imposes a maximum size for the coils and demands a design methodology to maximize output power delivered to the load and energy transmission efficiency. This paper presents a complete methodology for designing the coils of wireless power transfer systems applied to rechargeable batteries of wireless sensor network nodes. The design of an inductive link is presented as a case study, in which two planar coils are built in order to validate the proposed method. Moreover, a complete wireless power transfer system is developed for the proposal, including coils, primary power source, capacitor network compensation, and secondary power management, with rectification, filtering, regulation, and battery charge control. The experimental results for working distances between the coils from 1 mm to 10 mm are reported as well as the frequency response of the entire system.

[1]  Maysam Ghovanloo,et al.  Design and Optimization of Printed Spiral Coils for Efficient Transcutaneous Inductive Power Transmission , 2007, IEEE Transactions on Biomedical Circuits and Systems.

[2]  Klaus Finkenzeller,et al.  Rfid Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification , 2003 .

[3]  Ivan Müller,et al.  Power Transfer With an Inductive Link and Wireless Tuning , 2013, IEEE Transactions on Instrumentation and Measurement.

[4]  Eberhard Waffenschmidt,et al.  Limitation of inductive power transfer for consumer applications , 2009, 2009 13th European Conference on Power Electronics and Applications.

[5]  Grant Covic,et al.  Development of a Single-Sided Flux Magnetic Coupler for Electric Vehicle IPT Charging Systems , 2013, IEEE Transactions on Industrial Electronics.

[6]  Catherine Dehollain,et al.  Inductive power link for a wireless cortical implant with biocompatible packaging , 2010, 2010 IEEE Sensors.

[7]  Frederick Warren Grover,et al.  Inductance Calculations: Working Formulas and Tables , 1981 .

[8]  Valner Joao Brusamarello,et al.  Analysis and Optimization of an Inductive Power Transfer With a Randomized Method , 2014, IEEE Transactions on Instrumentation and Measurement.

[9]  J. W. Kolar,et al.  Optimized magnetic design for inductive power transfer coils , 2013, 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[10]  Christian Reinhold,et al.  Efficient Antenna Design of Inductive Coupled RFID-Systems with High Power Demand , 2007, J. Commun..

[11]  R.R. Harrison,et al.  A Low-Power Integrated Circuit for a Wireless 100-Electrode Neural Recording System , 2006, IEEE Journal of Solid-State Circuits.

[12]  W. G. Hurley,et al.  Calculation of self and mutual impedances in planar magnetic structures , 1995 .

[13]  Hani A. Ghali,et al.  Understanding "Mutual Inductance" using COMSOL Multiphysics , 2009 .

[14]  Fernando Rangel de Sousa,et al.  Design and optimization of a power inductive link , 2014, 2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings.

[15]  C. Richter.  Cochlear Implants: Fundamentals and Applications , 2004 .

[16]  J. T. Boys,et al.  Design and Optimization of Circular Magnetic Structures for Lumped Inductive Power Transfer Systems , 2011, IEEE Transactions on Power Electronics.

[17]  John C Schuder,et al.  Powering an artificial heart: birth of the inductively coupled-radio frequency system in 1960. , 2002, Artificial organs.

[18]  Klaus Finkenzeller,et al.  Book Reviews: RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification, 2nd ed. , 2004, ACM Queue.