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1. WO2018148079 - WIRELESS CHARGING SYSTEM WITH START-UP NEGOTIATION

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Publication Number WO/2018/148079
Publication Date 16.08.2018
International Application No. PCT/US2018/016245
International Filing Date 31.01.2018
IPC
H02J 50/80 2016.1
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
80involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/10 2016.1
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 7/00 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H04W 52/02 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
02Power saving arrangements
CPC
H02J 50/12
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
12of the resonant type
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
H02J 50/80
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
80involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90
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
90involving detection or optimisation of position, e.g. alignment
H02J 7/00045
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
00032characterised by data exchange
00045Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
H04B 5/0037
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
0025Near field system adaptations
0037for power transfer
Applicants
  • APPLE INC. [US]/[US]
Inventors
  • MOUSSAOUI, Zaki
  • QIU, Weihong
Agents
  • TREYZ, G. Victor
Priority Data
15/883,41530.01.2018US
62/457,72710.02.2017US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) WIRELESS CHARGING SYSTEM WITH START-UP NEGOTIATION
(FR) SYSTÈME DE CHARGE SANS FIL À NÉGOCIATION DE DÉMARRAGE
front page image
Abstract
(EN) A wireless power transmission system has a wireless power receiving device that is located on a charging surface of a wireless power transmitting device. The wireless power transmitting device uses measurement circuitry such as coil impedance measurement circuitry or impulse-response circuitry that makes coil inductance measurements to monitor the charging surface for the presence of the wireless power receiving device. In response to detecting that the wireless power receiving device is present on the charging surface, the wireless power transmitting device and the wireless power receiving device establish a wireless communications link. The wireless power transmitting device transmits information on wireless power transmission capabilities of the wireless power transmitting device to the wirelessly power receiving device. The receiving device selects desired settings and transmits these to the transmitting device.
(FR) L'invention concerne un système de transmission d'énergie sans fil comprenant un dispositif de réception d'énergie sans fil situé sur une surface de charge d'un dispositif de transmission d'énergie sans fil. Le dispositif de transmission d'énergie sans fil fait appel à un circuit de mesure tel qu'un circuit de mesure d'impédance de bobine ou un circuit de réponse impulsionnelle qui effectue des mesures d'inductance de bobine pour surveiller la surface de charge afin de détecter la présence du dispositif de réception d'énergie sans fil. En réponse à la détection du fait que le dispositif de réception d'énergie sans fil est présent sur la surface de charge, le dispositif de transmission d'énergie sans fil et le dispositif de réception d'énergie sans fil établissent une liaison de communication sans fil. Le dispositif de transmission d'énergie sans fil transmet des informations sur les capacités de transmission de puissance sans fil du dispositif de transmission d'énergie sans fil au dispositif de réception d'énergie sans fil. Le dispositif de réception sélectionne des paramètres souhaités et les transmet au dispositif de transmission.
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