The Application of Dual Power Generating Devices

• Main Authors: Chih-Chia Chang, 張智嘉
• Other Authors: Cheng-Yuan Chang
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/7pfh5k

碩士 === 中原大學 === 電機工程研究所 === 99 === Abstract Consider the global environmental issues. Green energy system will be developed quickly, like big wind power、solar power and LED lighting. In order to improve energy shortage and global warming issues, we must active develop renewable energy. People responding to energy saving and carbon reducing has increased popularity of bikes. Bikes were the most advanced vehicles in the world that allow travel and exercise. In this thesis, we use dynamo and solar power to generate electricity. Combining the two powers, this thesis proposes a dual power charging circuit, using a switch to change power sources, and using a control circuit with a Lithium Ion battery to save energy. We can use a Lithium Ion battery to provide bike’s lighting and USB devices. In the experimental results, it was found that using a switch to change power sources resulted on faster charging efficiency than using a single power source.