A Numerical Analysis and Improvement of Output Characteristics in Different Passive Rectifiers based on Vibration Generators

Sakabe, Tomoki; Minami, Masataka; Motegi, Shin-ichi; Michihira, Masakazu

doi:10.23919/ipec.2018.8507472

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…3 (b) is a conventional diode bridge rectifier. We numerically compared and verified those all-passive rectifiers (32) . As the results, the boost-type currentimproving passive rectifier is matched for the vibration generators based on the piezoelectric elements (32) .…”

Section: Mechanical Equivalent Circuitmentioning

confidence: 90%

“…We numerically compared and verified those all-passive rectifiers (32) . As the results, the boost-type currentimproving passive rectifier is matched for the vibration generators based on the piezoelectric elements (32) . This paper proposes using a series inductor for LC resonance with the internal capacitor C p from the piezoelectric elements to improve the output power.…”

Section: Mechanical Equivalent Circuitmentioning

confidence: 90%

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Passive Rectifier for Vibration Generators based on Piezoelectric Elements with <i>LC</i> Resonance

et al. 2021

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Energy harvesting systems have recently garnered significant attention. Mechanical vibrations are used as a type of energy source in such systems. However, it is important to improve the performance of vibration generators because they provide low power in the milliwatt or microwatt level. This study investigated the improvements in the output power using passive devices. A boost-type, current-improving passive rectifier was used in this study. Additionally, an input series inductor was employed to resonate the internal capacitor of the piezoelectric elements; consequently, the output power was increased. The validity of the proposed circuit was verified both numerically and experimentally.

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Section: Mechanical Equivalent Circuitmentioning

confidence: 90%

Section: Mechanical Equivalent Circuitmentioning

confidence: 90%