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Vibration harvesters offer a substitute to AA, AAA cells

Posted: 22 Jul 2010     Print Version  Bookmark and Share

Keywords:vibration  energy  harvester 

Japan's Brother Industries Ltd unveils vibration energy harvesters in form factors designed as a substitute to AA and AAA batteries, according to a Tech-On article.

To illustrate the application of vibration-powered electricity generators, the example is given of installing them in a remote control for a television or set-top box, where it is possible to use the remote after shaking it to generate power.

Inside the battery-shaped case are an electromagnetic induction generator and a 500mF capacitor for storage. The output of the AA-size generator is 10mW to 180mW, the report said and versions have been produced that provide power at 1.6V and 3.2V. Brother has also produced an AAA unit that generates 2.7V.

The vibration harvesters can support devices with low duty cycles, such as remote controls, the report said.

- Peter Clarke
EE Times

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