High Efficiency MOSFET Bridge Rectifier for AlN MEMS Cantilever Vibration Energy Harvester

Existing piezoelectric vibration energy harvesting circuits require auxiliary power for the switch control module and are difficult to adapt to broadband piezoelectric vibration energy harvesters. This paper proposes a self-powered and low-power enhanced double synchronized switch harvesting (EDSSH) circuit. The proposed circuit consists of a low-power follow-up switch control circuit, reverse feedback blocking-up circuit, synchronous electric charge extraction circuit and buck-boost circuit. The EDSSH circuit can automatically adapt to the sinusoidal voltage signal with the frequency of 1 to 312.5 Hz that is output by the piezoelectric vibration energy harvester. The switch control circuit of the EDSSH circuit works intermittently for a very short time near the power extreme point and consumes a low amount of electric energy. The reverse feedback blocking-up circuit of the EDSSH circuit can keep the transmission efficiency at the optimal value. By using a charging capacitor of 1 mF, the charging efficiency of the proposed EDSSH circuit is 1.51 times that of the DSSH circuit.

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607 Power Generation Performance Evaluation of Vibration Energy Harvester with Piezocomposite and Power Loss Evaluation of a Full-Bridge Rectifier

The Proceedings of the Dynamics & Design Conference ◽

10.1299/jsmedmc.2010._607-1_ ◽

2010 ◽

Vol 2010 (0) ◽

pp. _607-1_-_607-6_

Author(s):

Kazuhiko ADACHI ◽

Tohru TANAKA

Keyword(s):

Power Generation ◽

Performance Evaluation ◽

Power Loss ◽

Energy Harvester ◽

Vibration Energy ◽

Vibration Energy Harvester ◽

Bridge Rectifier ◽

Power Generation Performance

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An Experimental Performance Evaluation of DC Power Generation and Power Loss in Full-Bridge Rectifier of Cantilever Type of Piezoelectric Vibration Energy Harvester

ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1 ◽

10.1115/smasis2010-3708 ◽

2010 ◽

Cited By ~ 1

Author(s):

Kazuhiko Adachi ◽

Tohru Tanaka

Keyword(s):

Power Generation ◽

Resonant Frequency ◽

Power Loss ◽

Energy Harvester ◽

Rotating Machinery ◽

Vibration Energy ◽

Vibration Energy Harvester ◽

Full Wave ◽

Dc Power ◽

Bridge Rectifier

Rotating machinery is widely used in the industrial plant. In order to ensure safety operation of the rotating machinery, vibration condition monitoring of the machinery can play a crucial role. Authors have proposed a cantilever type of vibration energy harvester for vibration condition monitoring applications of rotating machinery. Proposed energy harvester consisted of Macro-Fiber Composite (MFC). In this study, not only the DC power generation performance but also power loss in full-wave bridge rectifier of the proposed vibration energy harvester is experimentally evaluated. The maximum DC output power through 287.6(kΩ) resistor which includes instruments internal resistances obtained 109.5(μW) when subjected to vibration source input magnitude of 0.71(mm/s rms) at the resonant frequency of the harvester. The impedance matching between MFC actuators and the electrical resistive load was also effective for maximizing the DC power transfer of the vibration energy harvester. The power loss in full-wave bridge rectifier reached 13.7(μW) at the resonant frequency.

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Simply supported FPEDs connected by springs for broadband energy harvesting

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-209323 ◽

2020 ◽

Vol 64 (1-4) ◽

pp. 201-210

Author(s):

Yoshikazu Tanaka ◽

Satoru Odake ◽

Jun Miyake ◽

Hidemi Mutsuda ◽

Atanas A. Popov ◽

...

Keyword(s):

Energy Harvesting ◽

Evaluation Method ◽

Energy Harvester ◽

Vibrational Energy ◽

Functional Materials ◽

Vibration Energy ◽

Theoretical Evaluation ◽

Vibration Energy Harvester ◽

Polyvinylidene Difluoride ◽

Simply Supported

Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.

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