A highly efficient P-SSHI rectifier for piezoelectric energy harvesting

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    © 2015 IEEE. A highly efficient P-SSHI-based rectifier for piezoelectric energy harvesting is presented in this paper. The proposed rectifier utilizes the voltages at the two ends of the piezoelectric device (PD) to detect the polarity change of the current produced by the PD. The inversion process of the voltage across the PD is automatically controlled by diodes along the oscillating network. In contrast to prior works, the proposed rectifier exhibits several advantages in terms of efficiency, circuit simplicity, compatibility with commercially available PDs, and standalone operation. Experimental results show that the proposed rectifier can provide a 5.8× boost in harvested energy compared to the conventional full-wave bridge rectifier.
    Original languageEnglish
    Article number7084647
    Pages (from-to)5364-5369
    Number of pages6
    JournalIEEE Transactions on Power Electronics
    Issue number10
    Publication statusPublished - Oct 2015


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