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Transformer-Reuse Reconfigurable Synchronous Boost Converter with 20 mV MPPT-Input, 88% Efficiency, and 37 mW Maximum Output Power

  • Im, Jong-Pil (ICT Materials & Components Research Laboratory, ETRI) ;
  • Moon, Seung-Eon (ICT Materials & Components Research Laboratory, ETRI) ;
  • Lyuh, Chun-Gi (ICT Materials & Components Research Laboratory, ETRI)
  • Received : 2016.02.23
  • Accepted : 2016.05.09
  • Published : 2016.08.01
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Abstract

This paper presents a transformer-based reconfigurable synchronous boost converter. The lowest maximum power point tracking (MPPT)-input voltage and peak efficiency of the proposed boost converter, 20 mV and 88%, respectively, were achieved using a reconfigurable synchronous structure, static power loss minimization design, and efficiency boost mode change (EBMC) method. The proposed reconfigurable synchronous structure for high efficiency enables both a transformer-based self-startup mode (TSM) and an inductor-based MPPT mode (IMM) with a power PMOS switch instead of a diode. In addition, a static power loss minimization design, which was developed to reduce the leakage current of the native switch and quiescent current of the control blocks, enables a low input operation voltage. Furthermore, the proposed EBMC method is able to change the TSM into IMM with no additional time or energy loss. A prototype chip was implemented using a $0.18-{\mu}m$ CMOS process, and operates within an input voltage range of 9 mV to 1 V, and an output voltage range of 1 V to 3.3 V, and provides a maximum output power of 37 mW.

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References

  1. U.H. Kim et al., "A Fully-Integrated Penta-Band Tx Reconfigurable Power Amplifier with SOI CMOS Switches for Mobile Handset Applications," ETRI J., vol. 36, no. 2, Apr. 2014, pp. 214-223. https://doi.org/10.4218/etrij.14.2113.0046
  2. S.W. Heo et al., "Integrated Sliding-Mode Sensorless Driver with pre-Driver and Current Sensing Circuit for Accurate Speed Control of PMSM," ETRI J., vol. 37, no. 6, 2015, pp. 1154-1164. https://doi.org/10.4218/etrij.15.0115.0365
  3. J.M. Oh et al., "250 mV Supply Voltage Digital Low-Dropout Regulator Using Fast Current Tracking Scheme," ETRI J., vol. 37, no. 5, Oct. 2015, pp. 961-971. https://doi.org/10.4218/etrij.15.0114.0985
  4. M.K. Kim et al., "Sensorless Sine-Wave Controller IC for PM Brushless Motor Employing Automatic Lead-Angle Compensation," ETRI J., vol. 37, no. 6, Dec. 2015, pp. 1165-1175. https://doi.org/10.4218/etrij.15.0115.0329
  5. J.M. Oh et al., "Sliding Mode Observer Driver IC Integrated Gate Driver for Sensorless Speed Control of Wide Power Range of PMSMs," ETRI J., vol. 37, no. 6, Dec. 2015, pp. 1176-1187. https://doi.org/10.4218/etrij.15.0115.0002
  6. C. Vankecke et al., "Multisource and Battery-Free Energy Harvesting Architecture for Aeronautics Applications," IEEE Trans. Power Electron., vol. 30, no. 6, June 2015, pp. 3215-3227. https://doi.org/10.1109/TPEL.2014.2331365
  7. H. Ulusan et al., "A Fully Integrated and Battery-Free Interface for Low-Voltage Electromagnetic Energy Harvesters," IEEE Trans. Power Electron., vol. 30, no. 7, July 2015, pp. 3712-3719. https://doi.org/10.1109/TPEL.2014.2344915
  8. S. Heo et al., "Efficient Maximum Power Tracking of Energy Harvesting Using a $\mu$ Controller for Power Savings," ETRI J., vol. 33, no. 6, Dec. 2011, pp. 973-976. https://doi.org/10.4218/etrij.11.0211.0149
  9. S.K. Cho et al., "A Coreless Maximum Power Point Tracking Circuit of Thermoelectric Generators for Battery Charging Systems," IEEE Asian Solid State Circuits Conf., Beijing, China, Nov. 8-9, 2010, pp. 1-4.
  10. R.Y. Kim and J.S. Lai, "A Seamless Mode Transfer Maximum Power Point Tracking Controller for Thermoelectric Generator Applications," IEEE Trans. Power Electron., vol. 23, no. 5, Sept. 2008, pp. 2310-2318. https://doi.org/10.1109/TPEL.2008.2001904
  11. E.J. Carlson, K. Strunz, and B.P. Otis, "A 20 mV Input Boost Converter with Efficient Digital Control for Thermoelectric Energy Harvesting," IEEE J. Solid-State Circuits, vol. 45, no. 4, Apr. 2010, pp. 741-750. https://doi.org/10.1109/JSSC.2010.2042251
  12. LTC3108 Datasheet, Milpitas, CA, Linear Technology, 2010. Accessed Dec. 2011, http://cds.linear.com/docs/Datasheet/3108fa.pdf
  13. J.P. Im et al., "A 40 mV Transformer-Reuse Self-Startup Boost Converter with MPPT Control for Thermoelectric Energy Harvesting," IEEE J. Solid-State Circuits, vol. 47, no. 12, Dec. 2012, pp. 3055-3067. https://doi.org/10.1109/JSSC.2012.2225734
  14. J. Kim and C. Kim, "A DC-DC Boost Converter with Variation-Tolerant MPPT Technique and Efficient ZCS Circuit for Thermoelectric Energy Harvesting Applications," IEEE Trans. Power Electron., vol. 28, no. 8, Aug. 2013, pp. 3827-3833. https://doi.org/10.1109/TPEL.2012.2231098
  15. Y.K. The and P.K.T. Mok, "Design of Transformer-Based Boost Converter for High Internal Resistance Energy Harvesting Sources with 21 mV Self-Startup Voltage and 74% Power Efficiency," IEEE J. Solid-State Circuits, vol. 49, no. 11, Nov. 2014, pp. 2694-2704. https://doi.org/10.1109/JSSC.2014.2354645
  16. K.Z. Ahmed and S. Mukhopadhyay, "A Wide Conversion Ratio, Extended Input 3.5- ${\mu}$A Boost Regulator with 82% Efficiency for Low-Voltage Energy Harvesting," IEEE Trans. Power Electron., vol. 29, no. 9, Sept. 2014, pp. 4776-4786. https://doi.org/10.1109/TPEL.2013.2287194
  17. A. Shrivastava et al., "A 10 mV-Input Boost Converter with Inductor Peak Current Control and Zero Detection for Thermoelectric and Solar Energy Harvesting with 220 mV Cold-Start and 14.5 dBm, 915 MHz RF Kick-Start," IEEE J. Solid-State Circuits, vol. 50, no. 8, Aug. 2015, pp. 1-13. https://doi.org/10.1109/JSSC.2014.2382891
  18. A. Richelli et al., "A 30 mV-2.5 V DC/DC Converter for Energy Harvesting," J. Low Power Electron., vol. 11, no. 2, June 2015, pp. 190-195. https://doi.org/10.1166/jolpe.2015.1372
  19. Y. Nakase et al., "A 0.5V Start-Up 87% Efficiency $0.75 mm^{2}$ On-Chip Feed-Forward Single-Inductor Dual-Output (SIDO) Boost DC-DC Converter for Battery and Solar Cell Operation Sensor Network Micro-Computer Integration," Proc. IEEE Custom Integrated Circuits Conf., San Jose, CA, USA, Sept. 9-12, 2012, pp. 1-4.

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