EE Dept  |  ACAE Dept  |  Faculty of Engineering  |  CUHK

Eco-safe Human-motion-powered MEMS Energy Generator for Mobile Electronic Devices This project is funded by the Hong Kong Innovation and Technology Fund (ITS/185/01).

Investigators Introduction Historical Background  Principle & Design Resonation Structure Application Demonstration Infrared Transmission RF Signal Transmission Download Area CMNS Home

Introduction This project involves the research and development of a standard AA size vibration-induced micro energy transducer which is integrated with a power-management circuit. The generator is a spring mass system which uses laser-micromachined copper springs to convert mechanical energy into electrical power by Faraday's Law of Induction. A power-management circuit is used to step up the AC output and act as a reservoir to store the electrical energy generated. Our goal is for the generator to provide 3V DC output with low input mechanical frequencies, and produce enough power for low-power wireless applications. Potential applications for this micro power generator such as serving as a power supply for infrared transmission and radio frequency transmission have been proved to be possible. Mechanical vibration energy Electric energy