Non-contact electric supply system

Japanese Patent JP5917900

B2

A wireless power feed system with high transfer efficiency of electric power is disclosed. The wireless power feed system includes a power feeding device and a power receiving device, wherein the power feeding device includes a first electromagnetic coupling coil that is connected to an AC power source via a directional coupler; a first resonant coil; a switch connected to the opposite ends of the first resonant coil; a control circuit which conducts switching on/off of the switch based on a parameter of an amplitude of a reflective wave detected by the directional coupler; and an analog-digital converter provided between the first electromagnetic coupling coil and the control circuit; and the power receiving device includes a second resonant coil; and a second electromagnetic coupling coil, and wherein the first electromagnetic coupling coil is provided between the first resonant coil and the second resonant coil.

WO/2023/067381	GREEN ENERGY PRODUCTION BY THE EFFECTS OF THE ELECTROMAGNETIC SPECTRUM WAVES OVER A SPECIFIC CIRCUIT CHIPS RECEIVERS, FOR ENERGY SUPPLY FOR PERSONAL GROUP OF PEOPLES OR SOCIETIES, ALSO FOR SYSTEMS AND NETWORKS USE
WO/2016/084656	INFORMATION PROVIDING SYSTEM, POWER RECEIVING DEVICE, INFORMATION PROVIDING METHOD AND INFORMATION PROVIDING PROGRAM
WO/2002/007173	ELECTROMAGNETICALLY COUPLED DEVICE

Koichiro Kamata
Misako Sato
Shuhei Maeda

JP2011273310A

May 18, 2016

December 14, 2011

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Semiconductor Energy Laboratory Co., Ltd.

H02J50/00

JP2010268665A
JP201063245A

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