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A CMOS Interface Circuit for Vibrational Energy Harvesting with MPPT Control
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  • Journal title : Journal of IKEEE
  • Volume 20, Issue 1,  2016, pp.45-53
  • Publisher : Institude of Korean Electrical and Electronics Engineers
  • DOI : 10.7471/ikeee.2016.20.1.045
 Title & Authors
A CMOS Interface Circuit for Vibrational Energy Harvesting with MPPT Control
Yang, Min-Jae; Yoon, Eun-Jung; Yu, Chong-Gun;
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 Abstract
This paper presents a CMOS interface circuit for vibration energy harvesting with MPPT (Maximum Power Point Tracking). In the proposed system a PMU (Power Management Unit) is employed at the output of a DC-DC boost converter to provide a regulated output with low-cost and simple architecture. In addition an MPPT controller using FOC (Fractional Open Circuit) technique is designed to harvest maximum power from vibration devices and increase efficiency of overall system. The AC signal from vibration devices is converted into a DC signal by an AC-DC converter, and then boosted through the DC-DC boost converter. The boosted signal is converted into a duty-cycled and regulated signal and delivered to loads by the PMU. A full-wave rectifier using active diodes is used as the AC-DC converter for high efficiency, and a DC-DC boost converter architecture using a schottky diode is employed for a simple control circuitry. The proposed circuit has been designed in a 0.35um CMOS process, and the designed chip occupies . Simulation results shows that the maximum power efficiency of the entire system is 83.4%.
 Keywords
Energy Harvesting;Vibrational Energy;MPPT;AC-DC Converter;DC-DC Converter;PMU;
 Language
Korean
 Cited by
 References
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