#H02J50/60

H02J50/60 Aptiv Technologies AG

WIRELESS CHARGING FOREIGN OBJECT DETECTION

A method of foreign object detection for a wireless power transmitter. The method includes determining a vector impedance of a near-field communication (NFC) coil with an NFC chip. The determined vect…

DRIVE·Apr 9·1 min read

WIRELESS POWER TRANSFER AND COMMUNICATION

A power transmitter () comprises a driver () generating a drive signal for a transmitter coil to generate a power transfer signal during a power transfer time interval and an electromagnetic test sign…

DRIVE·Mar 19·2 min read

H02J50/60 Turck Holding GmbH

SYSTEM FOR INDUCTIVELY TRANSFERRING POWER FROM A PRIMARY DEVICE TO A SECONDARY DEVICE, PRIMARY DEVICE, AND METHOD FOR OPERATING SUCH A SYSTEM

An inductive power transfer system is provided, comprising a primary device, a secondary device, and a control unit, wherein the primary device is arranged and designed to inductively transfer power v…

DRIVE·Mar 19·1 min read

Q-FACTOR CONTINUOUS EXCITATION METHOD AND APPARATUS

A method is provided for operating a wireless charger having a multi-switch inverter which supplies an output PWM signal to a resonant circuit in response to switching control signals, including a fir…

DRIVE·Mar 5·1 min read

H02J50/60 NXP B.V.

SYSTEM AND METHOD FOR WIRELESS CHARGING FOREIGN OBJECT DETECTION

A misalignment tolerant foreign object detection approach is proposed for use with wireless charger systems where sensor coils or portions thereof are mirrored about one or more axes of radial symmetr…

DRIVE·Aug 14·1 min read

H02J50/60 ELEAPPOWER LTD.

Slotted Foreign Object Detection During Wireless Power Transfer

A wireless power transmitter is configured to (i) detect a presence of a wireless power receiver that is couplable with the wireless power transmitter, (ii) after detecting the presence of the wireles…

DRIVE·Aug 14·1 min read

H02J50/60 Delta Electronics, Inc.

DETECTING METHOD AND POWER TRANSMITTER IN WIRELESS CHARGING SYSTEM

The embodiments of the present application provide a detecting method and a power transmitter in a wireless charging system. The power transmitter includes: a signal sampling circuit, configured to sa…

DRIVE·Jul 3·1 min read

FOREIGN OBJECT DETECTION BY FREQUENCY BANDWIDTH COMPARISON

A wireless power transmitter and methods to: determine a transmitter frequency bandwidth of the wireless power transmitter when no wireless power receiver is inductively coupled with the wireless powe…

DRIVE·Mar 6·1 min read

H02J50/60 Microchip Technology Incorporated

Slotted Communications In Virtual AC Power Signal Transfer With Variable Slot Width

A wireless power transmission system includes a first antenna, a second antenna, a controller, a first power conditioning system, and a second power conditioning system. The controller is configured t…

DRIVE·Feb 20·2 min read

H02J50/60 LG Electronics Inc.

APPARATUS AND METHOD FOR PERFORMING WIRELESS POWER TRANSMISSION ON BASIS OF FOREIGN MATERIAL DETECTION

The present specification provides a wireless power reception apparatus comprising: a power pick-up unit configured to receive wireless power from a wireless power transmission apparatus by magnetic c…

DRIVE·Jan 30·1 min read

FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM

This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. An FOD protocol can be coordinated with different operating phas…

DRIVE·Jan 23·2 min read

H02J50/60 General Electric Company

WIRELESS POWER TRANSMITTER CIRCUIT AND METHOD CAPABLE OF DETECTING WIRELESS POWER RECEIVER AND FOREIGN OBJECT

A wireless power transmitter circuit includes: an inverter circuit including plural switches coupled to a resonant transmitter circuit; and a transmitter controller circuit for generating a PWM contro…

DRIVE·Jan 9·2 min read

H02J50/60 Richtek Technology Corporation

METHOD AND DEVICE FOR DETECTING FOREIGN MATTER, HOUSEHOLD APPLIANCE AND AIR CONDITIONING SYSTEM

A method and device for detecting a foreign matter for a wireless power transmission system, a household appliance and an air conditioning system are provided. The wireless power transmission system i…

DRIVE·Nov 14·1 min read

H02J50/60 FOSHAN SHUNDE MIDEA ELECTRIC SCIENCE AND TECHNOLOGY CO., LTD.

POWER TRANSMISSION APPARATUS, POWER RECEPTION APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE STORAGE MEDIUM

A power transmission apparatus that can wirelessly transmit power to a power reception apparatus via a power transmission coil and communicate with the power reception apparatus determines presence/ab…

DRIVE·Nov 7·1 min read

H02J50/60 Samsung Electronics Co., Ltd.

METHOD FOR DETECTING FOREIGN MATERIAL OF WIRELESS POWER TRANSMISSION APPARATUS

A wireless power transmission apparatus is provided. The apparatus includes a converter configured to perform a DC/DC power conversion operation, an inverter connected to the converter and configured …

DRIVE·Oct 31·2 min read

TRANSMIT COIL SELECTION RESPONSIVE TO AVERAGE PEAK TO PEAK MEASUREMENT VOLTAGE POTENTIALS AND RELATED APPARATUSES AND METHOD

Object detection in wireless power systems and related system, methods, and devices are disclosed. A controller for a wireless power transmitter includes a measurement voltage potential input terminal…

DRIVE·Oct 31·1 min read

H02J50/60 Microchip Technology Incorporated

DETECTION OF FOREIGN OBJECTS IN LARGE CHARGING VOLUME APPLICATIONS

A wireless power transmission system includes a wireless power transmitter, a wireless power transfer circuit electrically connectable to the at least one wireless power transmitter, and a transmitter…

DRIVE·Oct 24·1 min read

FRIENDLY METAL LOSS ESTIMATION

A wireless power transfer device can include a coil that couples to a corresponding coil of a counterpart device to facilitate wireless power transfer, a power converter coupled to the coil, and contr…

DRIVE·Oct 17·1 min read

H02J50/60 Apple Inc.

FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM

DRIVE·Oct 10·2 min read

POWER RECEIVING APPARATUS, METHOD FOR POWER RECEIVING APPARATUS, AND STORAGE MEDIUM

A power receiving apparatus () includes a coil () that wirelessly receives electric power from a power transmission apparatus, communication means () for transmitting at a predetermined interval a sig…

DRIVE·Oct 3·1 min read

H02J50/60 KYOCERA Corporation

ELECTRONIC DEVICE, CONTROL METHOD, AND CONTROL PROGRAM

An electronic device according to one aspect includes: a transmitter configured to transmit a transmission signal; a receiver configured to receive a prescribed signal; an environment estimator config…

DRIVE·Aug 29·1 min read

DEVICE AND METHOD FOR PERFORMING POWER CALIBRATION IN WIRELESS POWER TRANSMISSION SYSTEM

The present specification provides a wireless power transmission device comprising: a power conversion unit configured so as to transmit, in a power transfer phase, wireless power generated on the bas…

DRIVE·Jul 25·1 min read

H02J50/60 LG ELECTRONICS INC.

WIRELESS POWER TRANSMISSION DEVICE AND OPERATION METHOD THEREOF

A wireless power transmission device includes a transmission device and a control device. The control device generates a driving signal to the transmission device in a first soft-start period, so as t…

DRIVE·Jul 11·1 min read

H02J50/60 Richtek Technology Corporation

POWER RECEIVING APPARATUS, POWER TRANSMITTING APPARATUS, CONTROL METHODS THEREOF, AND A NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

A power receiving apparatus capable of receiving power transmitted from a power transmitting apparatus capable of executing first foreign object detection and second foreign object detection, transmit…

DRIVE·Jul 4·1 min read

H02J50/60 SAMSUNG ELECTRONICS CO., LTD.

ENERGY SUPPLY DEVICE

An energy supply device that supplies energy to an object. In an embodiment, the energy supply device may include at least one processor, and a plurality of coils connected to a resonant condenser for…

DRIVE·Jun 20·1 min read

METHOD AND APPARATUS FOR MEASURING QUALITY FACTOR IN WIRELESS POWER TRANSMISSION SYSTEM

The present disclosure provides a method for transmitting wireless power performed by a wireless power transmitter in a wireless power transmission system, and an apparatus using same, the method comp…

DRIVE·Jun 20·2 min read

H02J50/60 LG Electronics Inc.

WIRELESS POWER TRANSFER AND COMMUNICATION

DRIVE·Jun 13·2 min read

H02J50/60 LG Electronics Inc.

METHOD AND DEVICE FOR UTILIZING COUPLING FACTOR IN WIRELESS POWER TRANSMISSION SYSTEM

The present disclosure provides a method by which a wireless power transmitter transmits wireless power in a wireless power transmission system, and a device using same, the method comprising: receivi…

DRIVE·May 9·2 min read

FOREIGN MATTER DETECTION DEVICE

A foreign matter detection device includes: a plurality of detection coils (- to -) between a transmission coil () of a power transmission device () and a reception coil () of a power reception device…

DRIVE·May 2·2 min read

H02J50/60 OMRON Corporation

POWER TRANSMITTING APPARATUS, POWER RECEIVING APPARATUS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

A power transmitting apparatus sets, on the basis of transmission power set with the power receiving apparatus, a first threshold for determining whether or not a foreign object exist, and a second th…

DRIVE·May 2·1 min read

FRIENDLY METAL LOSS ESTIMATION

DRIVE·Mar 28·1 min read

H02J50/60 Apple Inc.

POWER TRANSMISSION APPARATUS AND POWER RECEPTION APPARATUS

A power transmission apparatus wirelessly transmits power to a power reception apparatus, transmits a signal including information for use in identification of the presence probability of a foreign ob…

DRIVE·Mar 21·1 min read

Slotted Communications In Virtual AC Power Signal Transfer With Variable Slot Width

DRIVE·Mar 7·2 min read