Title:
Systems and methods for power output control in wireless power transfer systems
Document Type and Number:
Japanese Patent JP6317349
Kind Code:
B2
Abstract:
This disclosure provides systems, methods and apparatus for wireless power transfer and particularly wireless power transfer to remote system such as electric vehicles. In one aspect a circuit for wireless power transfer is provided. The circuit comprises an inductive element for receiving wireless power from a magnetic field associated with a wireless power transfer transmitter device. The circuit further comprises an output configured to be connected to a load. The circuit further comprises a voltage detector configured to detect the voltage across the load. The circuit further comprises at least one switching element between the inductive element and the output. The circuit further comprises a controller configured to maintain a current in the inductive element substantially constant as the voltage detected across the load varies.
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Inventors:
Nicholas A Keyring
Jonathan Bieber
Michael Kissin
Edward Van Bohemen
Jonathan Bieber
Michael Kissin
Edward Van Bohemen
Application Number:
JP2015528628A
Publication Date:
April 25, 2018
Filing Date:
August 21, 2013
Export Citation:
Assignee:
Qualcomm, Inc.
International Classes:
H02J50/12; B60L11/18; H02J7/00
Domestic Patent References:
| JP201088143A |
Foreign References:
| WO2013129452A1 |
Other References:
Yusuke Moriwaki et al.,Basic Study on Reduction of Reflected Power Using DC/DC Converters in Wireless Power Transfer System via Magnetic Resonant Coupling,2011 IEEE 33rd International Telecommunications Energy Conference (INTELEC),IEEE,2011年 9月,1-5 pages
森脇 悠介 外2名,磁界共振結合を用いたワイヤレス電力伝送のDC/DC コンバータを用いた負荷変動時の反射電力抑制に関する検討,電気学会産業応用部門大会,日本,一般社団法人 電気学会,2011年 9月 6日,2011,ROMBUNNO.2-10,1-4
森脇 悠介 外2名,磁界共振結合を用いたワイヤレス電力伝送のDC/DC コンバータを用いた負荷変動時の反射電力抑制に関する検討,電気学会産業応用部門大会,日本,一般社団法人 電気学会,2011年 9月 6日,2011,ROMBUNNO.2-10,1-4
Attorney, Agent or Firm:
Yasuhiko Murayama
Kuroda Shinpei
Kuroda Shinpei
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