Kinetic AC/DC Converter for Electromagnetic Energy Harvesting in Autonomous Wearable Devices

A nano-power integrated circuit is designed to convert the ac output of an electromagnetic micro generator for wearable kinetic energy harvesting to dc usable power. The converter is designed to minimize the quiescent current and to maximize the energy conversion and maximum power point tracking efficiency from the kinetic energy harvester. The architecture implements an ac/dc chopper exploiting the intrinsic inductance of the transducer combined with a zero-drop rectifier. An optimal switching scheme is derived for the converter and a corresponding control circuit is developed and optimized for low power consumption. The converter is designed in an SMIC 130-nm process, and circuit simulations show an efficiency of 87%–88% with respect to the maximum power point of the transducer with a battery supply voltage ranging from 3.5 V to 4.2 V. The quiescent current of the converter is as low as 250 nA.

[1]  Yiannos Manoli,et al.  An ultra-low-voltage active rectifier for energy harvesting applications , 2010, Proceedings of 2010 IEEE International Symposium on Circuits and Systems.

[2]  Mohammed Ismail,et al.  An AC-DC converter for human body-based vibration energy harvesting , 2016, Microelectron. J..

[3]  Yuan Gao,et al.  A 220-mV Power-on-Reset Based Self-Starter With 2-nW Quiescent Power for Thermoelectric Energy Harvesting Systems , 2017, IEEE Transactions on Circuits and Systems I: Regular Papers.

[4]  Mark Billinghurst,et al.  Rapid Prototyping for Wearables: Concept Design and Development for head- and wrist-mounted Wearables (Smart Watches and Google Glass) , 2015, Tangible and Embedded Interaction.

[5]  Chris Van Hoof,et al.  Realization of a wearable miniaturized thermoelectric generator for human body applications , 2009 .

[6]  E. Dallago,et al.  A Self-Powered Electronic Interface for Electromagnetic Energy Harvester , 2011, IEEE Transactions on Power Electronics.

[7]  Dong Sam Ha,et al.  A Self-Powered and Optimal SSHI Circuit Integrated With an Active Rectifier for Piezoelectric Energy Harvesting , 2017, IEEE Transactions on Circuits and Systems I: Regular Papers.

[8]  Michele Magno,et al.  Extended Wireless Monitoring Through Intelligent Hybrid Energy Supply , 2014, IEEE Transactions on Industrial Electronics.

[9]  Hao Min,et al.  A High-Efficiency Split–Merge Charge Pump for Solar Energy Harvesting , 2017, IEEE Transactions on Circuits and Systems II: Express Briefs.

[10]  Luca Benini,et al.  A survey of multi-source energy harvesting systems , 2013, 2013 Design, Automation & Test in Europe Conference & Exhibition (DATE).

[11]  Gabriel A. Rincón-Mora,et al.  A 2-$\mu$ m BiCMOS Rectifier-Free AC–DC Piezoelectric Energy Harvester-Charger IC , 2010, IEEE Transactions on Biomedical Circuits and Systems.

[12]  Yiannos Manoli,et al.  Efficient Energy Harvesting With Electromagnetic Energy Transducers Using Active Low-Voltage Rectification and Maximum Power Point Tracking , 2012, IEEE Journal of Solid-State Circuits.

[13]  Mohammed Ismail,et al.  Characterization of Human Body-Based Thermal and Vibration Energy Harvesting for Wearable Devices , 2014, IEEE Journal on Emerging and Selected Topics in Circuits and Systems.

[14]  Yichao Tang,et al.  A Multiinput Bridgeless Resonant AC–DC Converter for Electromagnetic Energy Harvesting , 2016, IEEE Transactions on Power Electronics.

[15]  Michele Magno,et al.  Poster Abstract: KinetiSee - A Perpetual Wearable Camera Acquisition System with a Kinetic Harvester , 2016, 2016 15th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN).

[16]  Lucas G. de Carli,et al.  Maximizing the Power Conversion Efficiency of Ultra-Low-Voltage CMOS Multi-Stage Rectifiers , 2015, IEEE Transactions on Circuits and Systems I: Regular Papers.

[17]  Gil Zussman,et al.  Movers and Shakers: Kinetic Energy Harvesting for the Internet of Things , 2013, IEEE Journal on Selected Areas in Communications.

[18]  Dariusz Czarkowski,et al.  On-Chip AC–DC Multiple-Power-Supplies Module for Transcutaneously Powered Wearable Medical Devices , 2018, IEEE Transactions on Industry Applications.

[19]  H. Kulah,et al.  Fully Self-Powered Electromagnetic Energy Harvesting System With Highly Efficient Dual Rail Output , 2012, IEEE Sensors Journal.

[20]  Dong Sam Ha,et al.  Solar and thermal energy harvesting with a wearable jacket , 2014, 2014 IEEE International Symposium on Circuits and Systems (ISCAS).

[21]  Chao-Cheng Lee,et al.  A Direct AC–DC and DC–DC Cross-Source Energy Harvesting Circuit with Analog Iterating-Based MPPT Technique with 72.5% Conversion Efficiency and 94.6% Tracking Efficiency , 2016, IEEE Transactions on Power Electronics.

[22]  Matthew Louis Mauriello,et al.  Social fabric fitness: the design and evaluation of wearable E-textile displays to support group running , 2014, CHI.

[23]  Marco Tartagni,et al.  A Nanocurrent Power Management IC for Multiple Heterogeneous Energy Harvesting Sources , 2015, IEEE Transactions on Power Electronics.

[24]  G. J. Snyder,et al.  Thermoelectric Energy Harvesting , 2009 .

[25]  Bernard Multon,et al.  Micro-kinetic generator: Modeling, energy conversion optimization and design considerations , 2010, Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference.

[26]  Hiroshi Fuketa,et al.  Fully Integrated, 100-mV Minimum Input Voltage Converter With Gate-Boosted Charge Pump Kick-Started by LC Oscillator for Energy Harvesting , 2017, IEEE Transactions on Circuits and Systems II: Express Briefs.

[27]  Marco Tartagni,et al.  A Nanopower Synchronous Charge Extractor IC for Low-Voltage Piezoelectric Energy Harvesting With Residual Charge Inversion , 2016, IEEE Transactions on Power Electronics.

[28]  R Saravanakumar,et al.  A Wide Input Range Dual Path CMOS Rectifier for RF Energy Harvesting , 2017 .

[29]  Peter Spies,et al.  Handbook of Energy Harvesting Power Supplies and Applications , 2015 .