People Innovation Excellence

Harvesting Energy by Using Piezoelectric Stored in Supercapacitor

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Piezoelectric is one of the well-known devices for future energy harvester from any moving objects which can produce vibration. In this paper, we focused on the specific circuit in order to get optimum effectiveness of the piezoelectric. The experiment was done by using LEGO® model and a simple motor to produce continual bending and vibration to be captured by piezoelectric, before finally was converted into electrical energy saved in supercapacitor. The efficient bending achieved in this experiment was 1.5 cm with the output power of 1.6 mW. Nevertheless, the power efficiency gained was still low, about 25.76% beyond our expectation.

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