Efficiency enhancement and sensitive broadband 1Hz ∼ 1kHz of power generator by recycling vibration energy on Automobile

Mao Qugn Wei*, Fu-Hsiang Ko, Tai Ping Sun, Hsuen Li Chen, Yung Bin Lin, Meng Huang Gu, Chun Chung Chen, Meiyi Li, Szu Ching Liu, Cho Lun Hsu, Wen Cheng Chiu, Jui Min Liu, Yu Sheng Lai, Chiahua Ho

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


Based on novel design of moveable magnet between two mutually inimical magnetic forces without strict fabrication, for the first time, we demonstrate successfully a producible power generator with significant efficiency enhancement at broadband frequency range of 1 Hz ∼ 1 kHz, 3D-colis stack-ability for output voltage improvement, and recycling vibration energy on automobile simultaneously. Even though the vibration frequency is as low as 1 Hz, two orders-of-magnitude improvements in normalized power (the ratio of power to product of external force and coil turns) provided from previous reports can be obtained. Further, comparing our device with maturely accelerometer chip (MMA7361) indicates that proposed strategies benefit harvesting vibration energy on driving automobile indeed. This vibrated power generator inturn provides high potential for applications, such as human motion (1 Hz ∼ 2 Hz), sporting (5 Hz ∼ 10 Hz), and automotive (10 Hz ∼ 1 kHz) etc.

Original languageEnglish
Title of host publicationIEEE SENSORS 2012 - Proceedings
StatePublished - 1 Dec 2012
Event11th IEEE SENSORS 2012 Conference - Taipei, Taiwan
Duration: 28 Oct 201231 Oct 2012

Publication series

NameProceedings of IEEE Sensors


Conference11th IEEE SENSORS 2012 Conference

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