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1. (US20180006505) Wireless power transfer device with foreign object detection, system, and method for performing the same

Office : United States of America
Application Number: 15649726 Application Date: 14.07.2017
Publication Number: 20180006505 Publication Date: 04.01.2018
Grant Number: 10020693 Grant Date: 10.07.2018
Publication Kind : B2
IPC:
H02J 50/60
H02J 5/00
H02J 50/12
H02J 50/80
B60L 11/18
[IPC code unknown for H02J 50/60]
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
5
Circuit arrangements for transfer of electric power between ac networks and dc networks
[IPC code unknown for H02J 50/12][IPC code unknown for H02J 50/80]
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
L
PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
11
Electric propulsion with power supplied within the vehicle
18
using power supplied from primary cells, secondary cells, or fuel cells
CPC:
B60L 11/182
H02J 5/005
H02J 50/12
H02J 50/60
H02J 50/80
Y02T 90/122
Applicants: Sony Corporation
Inventors: Hiroaki Nakano
Osamu Kozakai
Shinji Komiyama
Kenichi Fujimaki
Agents: Michael Best & Friedrich LLP
Priority Data: 2012-141203 22.06.2012 JP
Title: (EN) Wireless power transfer device with foreign object detection, system, and method for performing the same
Abstract: front page image
(EN)

Methods and apparatus for detecting the presence of undesirable foreign matter in a region between a wireless power transmission apparatus and a power reception apparatus are described. First and second detection methods, based on different detection schemes, may be used to detect and distinguish the presence of foreign matter from misalignment during power transfer operation. A first detection method may be used before power is transferred to a load in a power reception apparatus, and a second detection method may be used while power is supplied to the load.


Also published as:
CN104365028EP2865101US20150171633US20160218567CN105946611CN106100155
US20180294679WO/2013/190809