Optimization of GaN-based ultra-low power boost converter in far-field energy harvesting

This paper presents a method of optimizing low power boost converters for use in far-field wireless energy harvesting systems. This method uses a database of manufacturer-provided device characteristics of both Silicon and GaN FETs to construct Figures of Merit (FOMs) used for evaluating device technologies for power loss based on boost converter parameters. A loss model is constructed for predicting device power losses and system efficiency over a wide range of operating points. Using the analysis framework, an asynchronous boost converter is constructed and experimentally verified with operation as low as 10 μW with a peak efficiency of 74% at an input power of 300 μW.

[1]  I. Cuiñas,et al.  Hybrid FSS and Rectenna Design for Wireless Power Harvesting , 2016, IEEE Transactions on Antennas and Propagation.

[2]  Regan Zane,et al.  Far-Field RF-Powered Variable Duty Cycle Wireless Sensor Platform , 2011, IEEE Transactions on Circuits and Systems II: Express Briefs.

[3]  Sang-Gug Lee,et al.  Maximum power transfer considering limited available input power in ultrasonic wireless power transfer for implanted medical devices , 2014, 2014 IEEE Fourth International Conference on Consumer Electronics Berlin (ICCE-Berlin).

[4]  Andrea Bianco,et al.  Maximizing system lifetime in wireless sensor networks , 2007, Eur. J. Oper. Res..

[5]  Derrick Wing Kwan Ng,et al.  Simultaneous wireless information and power transfer in modern communication systems , 2014, IEEE Communications Magazine.

[6]  Luciano Tarricone,et al.  Electromagnetic Energy Harvesting and Wireless Power Transmission: A Unified Approach , 2014, Proceedings of the IEEE.

[7]  R. Dean,et al.  Evaluation and comparison of silicon and gallium nitride power transistors in LLC resonant converter , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[8]  R. Zane,et al.  Custom IC for Ultralow Power RF Energy Scavenging , 2011, IEEE Transactions on Power Electronics.

[9]  M. Acanski,et al.  Comparison of Si and GaN power devices used in PV module integrated converters , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[10]  Robert W. Erickson,et al.  Fundamentals of Power Electronics , 2001 .

[11]  R. Zane,et al.  Resistor Emulation Approach to Low-Power RF Energy Harvesting , 2008, IEEE Transactions on Power Electronics.

[12]  Rajendran Sinnadurai,et al.  Wireless power transfer for small scale application , 2013, 2013 IEEE Student Conference on Research and Developement.

[13]  Shaoqiu Xiao,et al.  Design and Safety Considerations of an Implantable Rectenna for Far-Field Wireless Power Transfer , 2014, IEEE Transactions on Antennas and Propagation.

[14]  Robert W. Erickson,et al.  Pulse-Width Modulated Rectifiers , 2020, Fundamentals of Power Electronics.

[15]  Umberto Spagnolini,et al.  Energy Management Policies for Passive RFID Sensors with RF-Energy Harvesting , 2010, 2010 IEEE International Conference on Communications.

[16]  Regan Zane,et al.  RF-powered variable duty cycle wireless sensor , 2010, The 40th European Microwave Conference.