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A Wireless Energy Transmission For Capsule Endoscopes  

Seo, Min-Sung (Department of Electronic and Computer Engineering, Dankook University)
Ko, Young-Suk (Department of Electronic and Computer Engineering, Dankook University)
Park, Shi-Hong (Department of Electronic and Computer Engineering, Dankook University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.45, no.3, 2008 , pp. 80-85 More about this Journal
Abstract
Capsule endoscopes generally use primary cells as a power source due to its limited space. However, the primary cells have several limitations such as high cost, limited power and no reuse. To solve these problems, a new wireless energy transmission method is proposed. The proposed approach uses air-gap transformer concepts and LC resonance to transmit energy from transmitter(primary side) to capsule endoscopes(secondary side). The ferrite core with 3-axis winding is used to increase energy transfer efficiency regardless of direction and location. The experimental results show that the proposed method stably supplies 30mW power to secondary circuit.
Keywords
Capsule endoscopes; Air-gap; ferrite core; 3-axis;
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