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1. US20120133216 - Power receiving device and wireless power transmission system

官庁 アメリカ合衆国
出願番号 13387500
出願日 24.11.2010
公開番号 20120133216
公開日 31.05.2012
特許番号 09287717
特許付与日 15.03.2016
公報種別 B2
IPC
H02J 5/00
H電気
02電力の発電,変換,配電
J電力給電または電力配電のための回路装置または方式;電気エネルギーを蓄積するための方式
5交流回路網と直流回路網間の電力伝送のための回路装置
H02J 17/00
H電気
02電力の発電,変換,配電
J電力給電または電力配電のための回路装置または方式;電気エネルギーを蓄積するための方式
17電磁波による電力給電または電力配電のための方式
CPC
H02J 5/005
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
5Circuit arrangements for transfer of electric power between ac networks and dc networks
005with inductive power transfer
H02J 50/10
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
10using inductive coupling
H02J 50/20
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
20using microwaves or radio frequency waves
H02J 50/40
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
40using two or more transmitting or receiving devices
出願人 Kenichi Amma
MITSUBISHI HEAVY INDUSTRIES, LTD.
Tomohisa Kimura
Nobuhiko Fukuda
発明者 Kenichi Amma
Tomohisa Kimura
Nobuhiko Fukuda
代理人 Wenderoth, Lind & Ponack, L.L.P.
優先権情報 2009269197 26.11.2009 JP
発明の名称
(EN) Power receiving device and wireless power transmission system
要約
(EN)

A power receiving device includes: a plurality of antennas, a plurality of rectenna rectifying circuits each of which is provided to correspond to each of the antennas and each of which converts electromagnetic waves received by the corresponding antenna into DC power and outputs the DC power; a connection switching circuit which is provided between the plurality of rectenna rectifying circuits and a load and which performs switching between serial/parallel connection states of the output side of the plurality of rectenna rectifying circuits; a current sensor which measures current flowing through the load; and a control section which, on the basis of the current measured by the current sensor, selects a serial/parallel connection state of the rectenna rectifying circuits, the state enabling the RF-DC conversion efficiency to be maximized, and which controls the connection switching circuit so that the rectenna rectifying circuits is in the selected serial/parallel connection state.

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