TY - GEN
T1 - Simple self-driven synchronous rectifier for resonant inductive coupling wireless power transfer
AU - Koyama, Takahiro
AU - Honjo, Toru
AU - Ishihara, Masataka
AU - Umetani, Kazuhiro
AU - Hiraki, Eiji
PY - 2017/12/14
Y1 - 2017/12/14
N2 - Resonant inductive coupling wireless power transfer (RIC-WPT) is attracting attention as a convenient power supply method to small mobile apparatus. The efficiency and the power transfer capability of RIC-WPT has been known to be profoundly dependent on the quality factor of the receiving resonator. However, the quality factor of the receiving resonator tends to be deteriorated because of the conduction loss at the diode rectifier, particularly for low output voltage applications. In order to improve the efficiency and the power transfer capability, this paper propose a novel simple synchronous rectifier, which can reduce the conduction loss. The proposed rectifier has simple circuit configuration, which contributes to straightforward application to the wireless power transfer to small mobile apparatus with limited installation space. Experiment was carried out to verify the operation principle of the proposed rectifier. As a result, the proposed rectifier revealed successful suppression of the conduction loss. In addition, the experimental wireless power transfer system verified successful improvement in the rectification efficiency, supporting usefulness of the proposed rectifier for practical applications of the RIC-WPT for small mobile apparatus.
AB - Resonant inductive coupling wireless power transfer (RIC-WPT) is attracting attention as a convenient power supply method to small mobile apparatus. The efficiency and the power transfer capability of RIC-WPT has been known to be profoundly dependent on the quality factor of the receiving resonator. However, the quality factor of the receiving resonator tends to be deteriorated because of the conduction loss at the diode rectifier, particularly for low output voltage applications. In order to improve the efficiency and the power transfer capability, this paper propose a novel simple synchronous rectifier, which can reduce the conduction loss. The proposed rectifier has simple circuit configuration, which contributes to straightforward application to the wireless power transfer to small mobile apparatus with limited installation space. Experiment was carried out to verify the operation principle of the proposed rectifier. As a result, the proposed rectifier revealed successful suppression of the conduction loss. In addition, the experimental wireless power transfer system verified successful improvement in the rectification efficiency, supporting usefulness of the proposed rectifier for practical applications of the RIC-WPT for small mobile apparatus.
KW - resonant inductive coupling
KW - self-driven synchronous rectifier
KW - wireless power transfer
UR - http://www.scopus.com/inward/record.url?scp=85044001721&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044001721&partnerID=8YFLogxK
U2 - 10.1109/INTLEC.2017.8214163
DO - 10.1109/INTLEC.2017.8214163
M3 - Conference contribution
AN - SCOPUS:85044001721
T3 - INTELEC, International Telecommunications Energy Conference (Proceedings)
SP - 363
EP - 368
BT - 2017 IEEE International Telecommunications Energy Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 39th IEEE International Telecommunications Energy Conference, INTELEC 2017
Y2 - 22 October 2017 through 26 October 2017
ER -