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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/002340
Kind Code:
Provided is a non-contact power supply system which can also perform communication while performing non-contact power supply without using a separate communication device. A power supply system PS comprises: a capacitor 5 that is mechanically separated between a pair of electrodes 5a, 5b; a power supply circuit unit 6 that is connected to one electrode of the capacitor; and a power receiving circuit unit 7 that is connected to the other electrode of the capacitor. The power supply circuit unit has an oscillator 61, a modulator 62 for adding amplitude modulation, and a first control means 63 that constitute a series resonance circuit together with the capacitor, and the power supply circuit unit supplies carrier waves modulated to different amplitudes to the one electrode of the capacitor. The power receiving circuit unit has a rectification circuit 72, a switching circuit 73 that selectively applies a direct current voltage to power supply target electrodes 4a, 4b, and a second control means 75. The second control means controls the operation of the switching circuit on the basis of a control signal carrier wave that is supplied while a power supply carrier wave is being supplied.

SUZUKI, Takayuki (INC. 2500, Hagisono, Chigasaki-sh, Kanagawa 43, 〒2538543, JP)
KAWAKUBO, Daisuke (INC. 2500, Hagisono, Chigasaki-sh, Kanagawa 43, 〒2538543, JP)
MINAMI, Hirofumi (INC. 2500, Hagisono, Chigasaki-sh, Kanagawa 43, 〒2538543, JP)
MUSHA, Kazuhiro (INC. 2500, Hagisono, Chigasaki-sh, Kanagawa 43, 〒2538543, JP)
Application Number:
Publication Date:
January 05, 2017
Filing Date:
June 23, 2016
Export Citation:
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ULVAC, INC. (2500, Hagisono Chigasaki-sh, Kanagawa 43, 〒2538543, JP)
International Classes:
H02J50/05; B25J15/06; B25J19/00; B65G49/07; H01L21/677
Foreign References:
Attorney, Agent or Firm:
SEIGA PATENT AND TRADEMARK CORPORATION (9th Fl, Saisho Bldg. 1-14, Nishi-Gotanda 8-chome, Shinagawa-k, Tokyo 31, 〒1410031, JP)
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