Apple Inc.

Te Connectivity Nederland Bv

Powerbyproxi Limited

Tyco Electronics Nederland Bv

Ali Abdolkhani

Saining Ren

Aiguo Hu

Rex Pius Huang

Peter Dirk Jaeger

Wijnand Van Gils

Arunim Kumar

Gied Habraken

Lawrence Bernardo Dela Cruz

Guus Mertens

Daniel James Robertson

Ron Rafer Floresca

Junbo Zeng

Ya-Ting Wang

Lawerence Bernardo Dela Cruz

Eugenio Jr Sia Lecias

Michael Nasa

An inductive power transmitter comprising a plurality of autonomous resonant inverters, wherein each inverter outputs a voltage to a respective transmitter coil/coils for inductive power transfer; and a magnetic coupling structure between the respective transmitter coils, wherein the magnetic coupling structure is configured to determine a phase shift between the output voltage of each inverter.

Inverter for inductive power transmitter

An inductive power transmitter comprising: at least one power transmitting coil configured to generate an inductive power transfer (IPT) field; and an object detection system configured to detect objects in or adjacent a space occupied by the IPT field when generated; wherein the object detection system is configured to detect a receiver object based on a tag associated with the receiver object.

Inductive power transmitter

An inductive power receiver, comprising: a receiving coil; a bridge circuit configured to connect to the receiving coil comprising: a first branch including a first semiconductor device; a second branch including a second semiconductor device; a third branch including a first capacitor; and a forth branch including a second capacitor, and a controller configured to control at least one of the first semiconductor device and the second semiconductor device to regulate power provided to a load.

Inductive power receiver

An inductive power transmitter having a plurality of transmitting coils for generating an alternating magnetic field arranged in a row with each transmitting coil partially overlapping with adjacent transmitting coils in the row. A transmitting circuit connected to each transmitting coil may drive the transmitting coils so that each transmitting coil's alternating magnetic field is phase shifted with respect to the alternating magnetic field of adjacent transmitting coils in the row or so that the alternating magnetic field generated by the transmitting coils travels along a charging surface.

Transmitter for inductive power transfer systems

An inductive power transfer coil assembly including: a magnetically permeable core including a base having a pair of spaced apart limbs extending therefrom; and a winding located between and above the pair of spaced apart limbs.

Magnetically permeable core and an inductive power transfer coil arrangement

An inductive power transfer coil arrangement comprising: a first coil assembly including: at least a first magnetically permeable core including a base having first and second limbs extending away therefrom, wherein the first limb is located between two second limbs and extends further from the base than the second limbs, and at least one coil wound about at least one limb; and a second coil assembly including: at least a second magnetically permeable core for use in an inductive power transfer system, including a base having first and second limbs extending away therefrom, wherein the first limb is located between two second limbs that extend further from the base than the second limbs; and at least one coil wound about at least one limb; the first and second magnetically permeable cores being arranged in relatively moveable relationship such that in some relative positions the first and second magnetically permeable cores are opposed such as to provide effective magnetic coupling.

Magnetically permeable core and inductive power transfer coil arrangement

An inductive power transfer device including: a resonant circuit, having a power transfer coil and a power transfer capacitor; a coupling coil, magnetically-coupled to the power transfer coil; a variable impedance; and a controller configured to determine the impedance value of the variable impedance based on predetermined criteria including: substantially regulating power provided to a load; tuning the resonant circuit resonant frequency substantially to a predetermined frequency; adjusting a frequency of a magnetic field associated with the power transfer coil; and/or adjusting an impedance reflected by the power transfer coil to a corresponding coupled power transfer coil.

Coupled-coil power control for inductive power transfer systems

The invention relates to a contactless connector (), a system including the contactless connector () and a corresponding mating connector (), and a manufacturing method for the contactless connector. In order to enable the contactless connector () to transmit/receive power to/from the corresponding mating connector (), the invention suggest providing at the contactless connector an inner ferrite element () and an inductive coupling element () arranged to at least partially surround the inner ferrite element. An outer ferrite element () of the contactless connector is arranged to at least partially surround the inductive coupling element (), wherein a front end () of the outer ferrite element () facing the mating () end of the contactless connector is recessed in an axial direction of the contactless connector with respect to a front end () of the inner ferrite element () facing the mating end. A rear end () of the outer ferrite element () is magnetically connected to a rear end () of the inner ferrite element (). An inductive coupling support element () is arranged around the inner ferrite element (). The inductive coupling element is a wire wound around the inductive coupling support element (to form a coil comprising a plurality of coil windings (). The inductive coupling support element (comprises an outwardly extending intermediate disc that divides the coil windings () into a first and a second coil winding section. The intermediate disc () has a slot () forming a coil wire passageway through which the coil wire is routed.

Contactless connector, contactless connector system, and a manufacturing method for the contactless connector

A magnetically permeable core for use in wireless power transfer systems. The core includes a base with first and second portions that extend away from the base. The first portion extends further from the base than the second portion in order to maintain an effective flux linkage throughout a range of relative displacement of a receiving core from a transmitting core. Transmitters and/or receivers for use in wireless power transfer systems may include the magnetically permeable core and windings.

Magnetically permeable core for use in wireless power transfer systems

The invention relates to a contactless connector (), a system including the contactless connector () and a corresponding mating connector (), and a manufacturing method for the contactless connector. In order to enable the contactless connector to transmit/receive power to/from the corresponding mating connector, the invention suggest providing at the contactless connector an inner ferrite element () and an inductive coupling element () arranged to at least partially surround the inner ferrite element. An outer ferrite element () of the contactless connector is arranged to at least partially surround the inductive coupling element (), wherein a front end () of the outer ferrite element () facing the mating end of the contactless connector is recessed in an axial direction of the contactless connector with respect to a front end () of the inner ferrite element () facing the mating end (). A rear end () of the outer ferrite element () is magnetically connected to a rear end () of the inner ferrite element (). An inductive coupling support element () is arranged around the inner ferrite core element (). The inductive coupling element () is formed from a wire wound around the inductive coupling support element () to form a coil comprising a plurality of coil windings (). The connector further comprises an antenna element () and an antenna connection line () arranged in an opening in the inner ferrite element ().

Growing community of inventors

Auckland, New Zealand

Ali Abdolkhani