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Title:
NON-CONTACT POWER TRANSMISSION AND COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP2011172299
Kind Code:
A
Abstract:

To provide a non-contact power transmission, along with a communication system, capable of commonalizing a coil for communication, and a first coil at a power transmission side and a second coil at a power reception side, and capable of preventing application of overvoltage to a communication circuit connected to the second coil.

The non-contact power transmission and communication system includes a transmission-side device 19 including the first coil and a reception-side device 20 including the second coil 7, and performs non-contact power transmission and communication of a data signal by electromagnetic coupling between the first coil and the second coil 7. The reception-side device 20 includes the communication circuit for receiving and transmitting the data signal and an input connection circuit 24 for connecting the communication circuit to the second coil 7. The input connection circuit 24 includes MOSFET semiconductor switches 41, 42, 43 operated according to voltage generated in the second coil 7, and an operation of the MOSFET semiconductor switches changes a voltage to be applied to the communication circuit.


Inventors:
WAKAO NAOKI
Application Number:
JP2010030768A
Publication Date:
September 01, 2011
Filing Date:
February 16, 2010
Export Citation:
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Assignee:
NEC TOKIN CORP
International Classes:
H01M10/46
Domestic Patent References:
JP2004102798A2004-04-02
JP2009272697A2009-11-19
JPH10145987A1998-05-29
JPH1153491A1999-02-26
JPH1188243A1999-03-30
JP2003061269A2003-02-28
JP2005202721A2005-07-28
JP2009106128A2009-05-14
JPH07217972A1995-08-18
JP2005328658A2005-11-24