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The Doubler of Electricity Used as Battery Charger

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2 Author(s)
Antonio Carlos M. de Queiroz ; Electrical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro-RJ, Brazil ; Marcelo Domingues

This brief describes several ways in which a variation of the electrostatic generator known as “doubler of electricity” or “Bennet's doubler” can be used as a practical micropower generator and a battery charger. The device has a structure that can be constructed as a microelectromechanical system device powered by ambient vibration. A simple battery charger that does not require any control circuit for operation is detailed, and the inherent instability of the device is exploited to allow greater power output, with experimental results presented.

Published in:

IEEE Transactions on Circuits and Systems II: Express Briefs  (Volume:58 ,  Issue: 12 )