Invention Grant
US08664803B2 Wireless power feeder, wireless power receiver, and wireless power transmission system 有权
无线供电器,无线电源接收器和无线电力传输系统

  • Patent Title: Wireless power feeder, wireless power receiver, and wireless power transmission system
  • Patent Title (中): 无线供电器,无线电源接收器和无线电力传输系统
  • Application No.: US13273547
    Application Date: 2011-10-14
  • Publication No.: US08664803B2
    Publication Date: 2014-03-04
  • Inventor: Takashi Urano
  • Applicant: Takashi Urano
  • Applicant Address: JP Tokyo
  • Assignee: TDK Corporation
  • Current Assignee: TDK Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Oliff PLC
  • Main IPC: H01F27/42
  • IPC: H01F27/42
Wireless power feeder, wireless power receiver, and wireless power transmission system
Abstract:
A wireless power receiver according to an embodiment of the present invention is a wireless power receiver which acquire power by a non-contact method from a wireless power feeder, the wireless power receiver having: a power receive resonance circuit that includes a power receive coil and power receive capacitor and acquires power from a power feed coil of the wireless power feeder by means of the power receive coil on the basis of a magnetic field resonance effect between the power feed coil and the power receive coil; a power receive load coil that receives the power fed from the power receive coil by a non-contact method; and an impedance converter that is arranged between the power receive load coil and a load and in which a primary impedance connected to the power receive load coil is higher than a secondary impedance connected to the load.
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