Title:
POWER TRANSMITTING DEVICE, POWER RECEIVING DEVICE, NON-CONTACT POWER TRANSMISSION SYSTEM, AND METHOD FOR CONTROLLING TRANSMISSION POWER IN NON-CONTACT POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/042570
Kind Code:
A1
Abstract:
A non-contact power transmission system (1) comprises a power transmitting device (4) and a power receiving device (7). The power transmitting device (4) transmits AC power modulated on a carrier to the power receiving device (7). The power receiving device (7) changes the resonance frequency of a power receiving antenna (20) by changing the load of the power receiving device (7) to control the reception of the AC power. The power transmitting device (4) detects, in response to the change in the load of the power receiving device (7), a modulated signal that is superimposed on the carrier of the AC power, and controls the transmission of the AC power on the basis of the detected modulated signal.
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Inventors:
MISHINA KOICHI (JP)
MORI MASASHI (JP)
MORI MASASHI (JP)
Application Number:
PCT/JP2012/073069
Publication Date:
March 28, 2013
Filing Date:
September 10, 2012
Export Citation:
Assignee:
NEC TOKIN CORP (JP)
MISHINA KOICHI (JP)
MORI MASASHI (JP)
MISHINA KOICHI (JP)
MORI MASASHI (JP)
International Classes:
H02J17/00
Foreign References:
| JP2011155836A | 2011-08-11 | |||
| JP2011121456A | 2011-06-23 | |||
| JP2010288431A | 2010-12-24 | |||
| JP2010284058A | 2010-12-16 | |||
| JP2010141966A | 2010-06-24 |
Attorney, Agent or Firm:
YAMAZAKI, TAKUYA (JP)
Takuya Yamazaki (JP)
Takuya Yamazaki (JP)
Download PDF:
Claims: