- Volume 18 Issue 6
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Study on the mobile phone case for self-power generation
자가발전용 휴대폰 케이스에 관한 연구
- Kim, Jin Ho (Division of Mechanical Engineering, Yeungnam University) ;
- Park, Chang Hyung (Division of Mechanical Engineering, Yeungnam University) ;
- Han, Seung Chul (Dept. of Automobiles Yeungnam College University)
- Received : 2017.03.15
- Accepted : 2017.06.09
- Published : 2017.06.30
This paper presents the mobile phone case for self-power generation and recharge for emergency calls or text messages at the discharge of a battery. If the user shakes his smart phone case, the interaction of electromagnetic coil and permanent magnet in an electric generator produces electric energy, which charges the lithium-ion battery. This enables the user to give a few calls or text messages. In addition, the vibration energy from humans walking at a frequency of 2 ~ 3Hz charges the battery. The electric generator was simulated using MAXWELL, a commercial electromagnetic analysis program, to analyze the electric power generation. Finally a prototype of the mobile phone case for self-power generation was built based on the analysis and its performance was verified.
Energy harvesting;Linear generator;MAXWELL;Mobile phone case;Self-Power generation
Supported by : 영남대학교
- Francesco Cottone, "Introduction to Vibration energy Harvesting," NiPS Energy Harvesting Summer School, 2011.
- Dibin Zhu, Michael J Tudor, Stephen P Beeby, "Strategies for increasing the operating frequency range of vibration energy harvesters: a review," Measurement Science and Technology, vol. 21, pp. 1-29, 2009.
- Lars-Cyril Julin Blystad, "Piezoelectric MEMS Energy Harvesting Systems Driven by Harmonic and Random Vibrations," IEEE Transactions on Ultrasonics, vol. 57, no. 4, 2010. DOI: https://doi.org/10.1109/TUFFC.2010.1495
- S P Beeby, M J tudor and N M White, "Energy harvesting vibration sources for microsystems applications," Measurement Science and Technology, vol. 17, pp. 175-195, 2006. DOI: https://doi.org/10.1088/0957-0233/17/12/R01 https://doi.org/10.1088/0957-0233/17/12/R01
- S. Roundy, E, S. Leland, J. Baker, E. Carleton, E. Reilly, E. Lai, b. Otis, J. M. Rabaey, P. K. Wright, v. "Sundararajan, Improving power output for vibration-based energy scavengers," Pervasive Computing, IEEE, vol. 4, issue 1, pp. 28-36, 2005. DOI: https://doi.org/10.1109/MPRV.2005.14
- Whelan, P. M.; Hodgeson, M. J., "Essential Principles of Physics (2nd ed.)", 1978.
- Nave, Carl R. "Faraday's Law," HyperPhysics, Georgia State University. Retrieved 29 Aug. 2011.