GB201305957D0 - Wireless Energy Transmission - Google Patents

Wireless Energy Transmission

Info

Publication number
GB201305957D0
GB201305957D0 GBGB1305957.1A GB201305957A GB201305957D0 GB 201305957 D0 GB201305957 D0 GB 201305957D0 GB 201305957 A GB201305957 A GB 201305957A GB 201305957 D0 GB201305957 D0 GB 201305957D0
Authority
GB
United Kingdom
Prior art keywords
factor
low
transformer
transmit
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB1305957.1A
Other versions
GB2501609B (en
GB2501609A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB201305957D0 publication Critical patent/GB201305957D0/en
Publication of GB2501609A publication Critical patent/GB2501609A/en
Application granted granted Critical
Publication of GB2501609B publication Critical patent/GB2501609B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • H02J5/005—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00308—Overvoltage protection

Abstract

A wireless energy transmitter 100 comprises a resonance transformer 105 with transmitting coil 120, a controller 165 which changes the quality (Q) factor of the transformer 105 between a lower value for energy transmission and a higher value for foreign object detection. A determiner 185 detects a foreign object dependent on an electrical parameter (e.g. current, voltage, resonant frequency or Q factor) of the transformer 105. A second transmitting coil 135 may be provided, connected either in series or in parallel with the first coil 125 for low or high Q factor transmission respectively. The coils 125, 135 may transmit at low power with high Q factor, or high power with low Q factor. The coils 125, 135 may transmit at high frequency with high Q factor, or low frequency with low Q factor. The high Q factor mode may be enabled periodically, for a period much shorter than that of the low Q factor mode. The transmitter 100 may transmit power by magnetic induction.
GB1305957.1A 2012-04-05 2013-03-02 Detecting foreign objects in wireless energy transmission by changing quality factor Expired - Fee Related GB2501609B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012205693A DE102012205693A1 (en) 2012-04-05 2012-04-05 Wireless energy transfer

Publications (3)

Publication Number Publication Date
GB201305957D0 true GB201305957D0 (en) 2013-05-15
GB2501609A GB2501609A (en) 2013-10-30
GB2501609B GB2501609B (en) 2014-12-03

Family

ID=48445154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1305957.1A Expired - Fee Related GB2501609B (en) 2012-04-05 2013-03-02 Detecting foreign objects in wireless energy transmission by changing quality factor

Country Status (3)

Country Link
CN (1) CN103368276B (en)
DE (1) DE102012205693A1 (en)
GB (1) GB2501609B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104753183B (en) * 2013-12-30 2018-05-04 华为技术有限公司 A kind of circuit control method, device and a kind of receiving circuit
DE102014205598A1 (en) * 2014-03-26 2015-10-01 Robert Bosch Gmbh Monitoring device for at least one designed for inductive power transmission electrical device and method for monitoring at least a sub-environment of at least one designed for inductive power transmission electrical device
JP6471965B2 (en) 2014-05-27 2019-02-20 パナソニックＩｐマネジメント株式会社 Power transmission device and wireless power transmission system
DE102014219968A1 (en) 2014-10-01 2016-04-07 Robert Bosch Gmbh Foreign object recognition method for an induction charging device and induction charging device
DE102014219964A1 (en) 2014-10-01 2016-04-07 Robert Bosch Gmbh Foreign object recognition method for an induction charging device and induction charging device
CN115603473A (en) * 2016-07-01 2023-01-13 Lg伊诺特有限公司（Kr） Method of communicating with wireless power transmitter and wireless power receiver
DE102017214741A1 (en) 2017-02-10 2018-08-16 Robert Bosch Gmbh A method for wireless energy transmission from an energy end device to a consumer and wireless energy end device for performing the method
DE102017214849A1 (en) 2017-08-24 2019-02-28 Robert Bosch Gmbh A method for wireless energy transmission from an energy end device to a consumer and wireless energy end device for performing the method
DE102017214844A1 (en) 2017-08-24 2019-02-28 Robert Bosch Gmbh A method for wireless energy transmission from an energy end device to a consumer and wireless energy end device for performing the method
DE102017214962A1 (en) 2017-08-28 2019-02-28 Robert Bosch Gmbh A method for wireless energy transmission from an energy end device to a consumer and wireless energy end device for performing the method
DE102017223799A1 (en) 2017-12-27 2019-06-27 Robert Bosch Gmbh A method for wireless energy transmission from an energy end device to a consumer and wireless energy end device for performing the method
SG11202101477WA (en) * 2018-08-21 2021-03-30 Mitsubishi Electric Corp Non-contact power supply system, power reception apparatus for non-contact power supply, and activation signal transmission method by power reception apparatus for non-contact power supply
CN110165726B (en) * 2019-04-28 2022-04-15 南京睿赫电子有限公司 Wireless charging device and charging method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19901983A1 (en) * 1999-01-20 2000-08-10 Perdix Oy Helsinki Control device for an inductive battery charger
JP4063188B2 (en) * 2003-10-07 2008-03-19 株式会社日立製作所 Fuel injection device and control method thereof
JP2011030404A (en) * 2009-06-22 2011-02-10 Felica Networks Inc Information processing apparatus, program, and information processing system
JP5653137B2 (en) * 2010-08-31 2015-01-14 キヤノン株式会社 Power supply apparatus and method
JP4982598B2 (en) * 2010-09-07 2012-07-25 株式会社東芝 Wireless power transmission system, power transmission device and power reception device of the system
CN102130515A (en) * 2011-04-08 2011-07-20 东南大学 Non-contact electrical energy transmission device with self-adaptive power factor correction and control method
JP5840886B2 (en) * 2011-07-25 2016-01-06 ソニー株式会社 Detection device, power reception device, power transmission device, non-contact power transmission system, and detection method
JP5838768B2 (en) * 2011-11-30 2016-01-06 ソニー株式会社 Sensing device, power receiving device, non-contact power transmission system, and sensing method

Also Published As

Publication number Publication date
GB2501609B (en) 2014-12-03
CN103368276B (en) 2018-01-02
DE102012205693A1 (en) 2013-10-10
CN103368276A (en) 2013-10-23
GB2501609A (en) 2013-10-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20220402