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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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Wireless power transfer systems require an algorithm to determine the presence of the target object for mitigating standby power and safety issues. Although many schemes that sense various external objects have been actively proposed for inductive power transfer systems, not many studies on capacitive power transfer systems have been conducted compared with those on inductive power transfer systems. This study proposes a target object detection algorithm by monitoring the capacitance in transmitter-side electrodes without additional pressure sensors or distance sensors. The proposed algorithm determines the presence of a target object by monitoring the change in capacitance in transmitter-side electrodes using the step pulse of the microcontroller unit. The algorithm is verified by two step processes. First, the performance in capacitance measurement is compared with that of an LCR meter. Then, the verification is conducted in a 5-W capacitive power transfer hardware. Experimental result shows that the interelectrode capacitance increases by 6 times when the target object is fully aligned. Thus, the proposed scheme can successfully detect the presence of the target object.
목차
Abstract
1. Introduction
2. Principle of Receiver Detection
3. Verification with Prototype Hardware
4. Conclusion
References
참고문헌 (7)
참고문헌 신청
Wireless Power Consortium / 2016 / The Qi wireless power transfer system power class 0 specification, part 1 and 2: Interface definitions, Ver. 1.2.2
M. Khalilan / 2016 / Load identification in dynamic wireless power transfer system utilizing current injection in the transmitting coil / 2016 IEEE Wireless Power Transfer Conference (WPTC) :1~4
M. Kline / 2011 / Capacitive power transfer for contactless charging / 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) :1398~1404
C. Liu / 2010 / A generalized coupling model for Capacitive Power Transfer systems / IECON 2010 – 36thAnnual Conference on IEEE Industrial Electronics Society :274~279
STMicroelectronics / 2003 / STPS5L40 / datasheet
M. Khalilan / 2016 / Load identification in dynamic wireless power transfer system utilizing current injection in the transmitting coil / 2016 IEEE Wireless Power Transfer Conference (WPTC) :1~4
M. Kline / 2011 / Capacitive power transfer for contactless charging / 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) :1398~1404
C. Liu / 2010 / A generalized coupling model for Capacitive Power Transfer systems / IECON 2010 – 36thAnnual Conference on IEEE Industrial Electronics Society :274~279
STMicroelectronics / 2003 / STPS5L40 / datasheet
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