Browse Publications Technical Papers 2005-01-1896
2005-04-11

An Electromagnetic Micro Power Generator for Low-Frequency Environmental Vibrations 2005-01-1896

This paper presents an electromagnetic (EM) vibration-to-electrical power generator which can efficiently scavenge energy from low-frequency external vibrations. The reported generator increases the conversion efficiency by up-converting the low-frequency environmental vibrations to a much higher frequency. Power is generated by electromagnetic induction between a magnet and coils placed on top of resonating cantilever beams. The calculated maximum power from a single cantilever is 2.5μW in vacuum for vibration frequencies 1Hz to 1kHz.

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