Integrated synchronous electric charge extraction system for piezoelectric energy harvesters

This paper presents a self-powered interface circuit for micromachined piezoelectric energy harvesters (PEH). The system implements the Synchronous Electric Charge Extraction (SECE) technique. Micro- and millimeter-scale PEHs are usually limited to tens or hundreds of microwatts with output voltages that typically do not exceed 1-3 V. Through system- and circuit-level optimizations the proposed interface can operate from as little as 1.5 μW, and can cold-start from a completely discharged state with PEH open circuit AC voltages as small as 900 mVpk. The system can operate up to 7 Vpk with extraction efficiency as high as 86%. The circuit is designed for the XFAB 0.35 μm CMOS process.

[1]  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.

[2]  Salar Chamanian,et al.  A self-powered integrated interface circuit for low power piezoelectric energy harvesters , 2013, 2013 4th Annual International Conference on Energy Aware Computing Systems and Applications (ICEAC).

[3]  T. Galchev,et al.  Micro Power Generator for Harvesting Low-Frequency and Nonperiodic Vibrations , 2011, Journal of Microelectromechanical Systems.

[4]  B. H. Stark,et al.  Review of Power Conditioning for Kinetic Energy Harvesting Systems , 2012, IEEE Transactions on Power Electronics.

[5]  Rajendra M. Patrikar,et al.  A CMOS Low Voltage Charge Pump , 2007, 20th International Conference on VLSI Design held jointly with 6th International Conference on Embedded Systems (VLSID'07).

[6]  R. Jacob Baker,et al.  CMOS Circuit Design, Layout, and Simulation , 1997 .

[7]  Yiannos Manoli,et al.  A Fully Autonomous Integrated Interface Circuit for Piezoelectric Harvesters , 2012, IEEE Journal of Solid-State Circuits.

[8]  Oliver Paul,et al.  An ultra-low-power active AC-DC CMOS converter for sub-1V integrated energy harvesting applications , 2013, 2013 IEEE SENSORS.

[9]  Maurits Ortmanns,et al.  A CMOS INTEGRATED INTERFACE FOR PIEZOELECTRIC GENERATORS , 2008 .

[10]  Carlos Galup-Montoro,et al.  A 2-nW 1.1-V self-biased current reference in CMOS technology , 2005, IEEE Transactions on Circuits and Systems II: Express Briefs.

[11]  T. Galchev,et al.  Microsystems for energy harvesting , 2011, 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference.

[12]  K. Ngo,et al.  Low Frequency Pulsed Resonant Converter for Energy Harvesting , 2007, IEEE Transactions on Power Electronics.

[13]  Yiannos Manoli,et al.  A Sub-500 mV Highly Efficient Active Rectifier for Energy Harvesting Applications , 2011, IEEE Transactions on Circuits and Systems I: Regular Papers.

[14]  D. Guyomar,et al.  Piezoelectric Energy Harvesting Device Optimization by Synchronous Electric Charge Extraction , 2005 .