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Patent Searching and Data


Title:
NON-CONTACT SIGNAL TRANSMISSION DEVICE AND NON-CONTACT POWER RECEIVING DEVICE
Document Type and Number:
Japanese Patent JP2015159656
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a communication circuit protection technique that has a heightened degree of freedom in impedance matching design at a power transmission time.SOLUTION: If a frequency detection circuit unit 9 has detected a frequency of a power transmission signal, a switch unit 8 is made in a short-circuited state, capacitors 21, 22 block signal transmission to a communication matching main circuit unit 6, and a communication circuit unit 7 is protected from the power transmission signal. This causes the other ends of the capacitors 21, 22 to be short-circuited at the same time, a power system forms a series connected circuit of the capacitors 21, 22 and a power receiving matching circuit unit by a power receiving matching main circuit unit 23. A power system from an antenna unit to a power transmission unit can be made into design suitable for power reception without requiring to take an impact from the communication matching main circuit unit 6 into consideration.

Inventors:
MORI KENJI
MAKITA KAZUMASA
KURIMOTO MASAKI
SATO MITSUHARU
Application Number:
JP2014032963A
Publication Date:
September 03, 2015
Filing Date:
February 24, 2014
Export Citation:
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Assignee:
NEC TOKIN CORP
International Classes:
H02J17/00; H04B5/02