A wireless power receiver according to an embodiment wirelessly receives power from a wireless power transmitter. The wireless power receiver includes a printed circuit board having a reception space in a predetermined area, a receiving coil disposed in the reception space of the printed circuit board for receiving power from the wireless power transmitter, and a short-range communication antenna disposed on the printed circuit board while surrounding the receiving coil.

A removable module includes circuitry, a near field communication (NFC) coupler to provide a data signal to the circuitry, and a second NFC coupler to supply operating voltage to the circuitry.

Embodiments describe a wireless charging transmitter coil includes: a support structure having an outer perimeter surrounding a contact housing and having first and second channels extending from the outer perimeter to the contact housing; first and second contacts positioned within the contact housing; and a wire wound around the outer perimeter of the support structure, the wire having a first end that extends through the first channel and a second end that extends through the second channel.

Systems and methods for mitigating constraints associated with wireless power transmission in applications where the position and orientation of the desired magnetic field changes over time, for example, because the position and orientation of the receiver being powered changes over time or because different receivers having different positions and orientations are being powered at different times. In accordance with some embodiments, the system employs a plurality of wireless power transmitters in a defined space, each transmitter consisting of individual coils oriented orthogonally relative to each other. Using field interference amongst these individual coils as well as amongst the transmitters they form, one can actively control the wireless power field intensity and orientation at any given point in the defined space. This allows for methods to steer the power transmission towards a specific target at a specific angle.

The system performs communication between two systems, a master system, that creates an alternating magnetic field by means of which it dialogues with one or more slave systems, which respond at frequencies other than those generated by the master by a non-linear magnetic core generating harmonics of higher order than those of the magnetic field created by the master. The generation of harmonics is controlled by the slave by a short-circuit coil which enables the data transmission from the slave to the master. The slave system can have its own power supply or it can be powered by the short-circuit coil. This allows microcontrollers in the slaves to be powered and give them intelligence and a large storage capacity, making them ideal for control security and monitoring processes. The excitation frequency can be varied because the functionality of the slaves does not depend on the frequency of the exciter field.

A charging system for an Implantable Medical Device (IMD) is disclosed having a charging coil and one or more sense coils. The charging coil and one or more sense coils are preferably housed in a charging coil assembly coupled to an electronics module by a cable. The charging coil is preferably a wire winding, while the one or more sense coils are concentric with the charging coil and preferably formed in one or more traces of a circuit board. The magnitude of one or more voltages induced on the one or more sense coils can be measured to determine the position of the charging coil relative to the IMD, and in particular whether the charging coil is (i) centered, (ii) not centered but not misaligned, or (iii) misaligned, with respect to the IMD being charged, which three conditions sequentially comprise lower coupling between the charging coil and the IMD.

A device for remotely supplying power, through magnetic induction, to a secondary module able to move in relation to a primary module along a predetermined path. An advantageous arrangement of the primary coils of the primary module and of a secondary coil of the secondary module furthermore allows the device to estimate the position of the secondary module. The primary coils are arranged such that: the primary coils form respective magnetic fields oriented in the same direction along their respective axes, during the movement, the inductive coupling between the first primary coil and the secondary coil evolves in the opposite way to the inductive coupling between the second primary coil and the secondary coil, the total inductive coupling existing between the primary coils and the secondary coil is substantially constant regardless of the position of the secondary coil.

Disclosed is an electronic device capable of securing improved radiation performance and emitting a magnetic field signal including payment information using a loop antenna, even though a portion of the electronic device may be made of metal.

This disclosure relates to the inductive charging of portable electronic devices. In particular, a charging assembly is disclosed that allows a portable electronic device to be charged in multiple orientations with respect to a charging device. The charging assembly includes two or more separate inductive receiving coils. The inductive receiving coils can be arranged orthogonally with respect to one another by wrapping one or more secondary receiving coils around a primary receiving coil. By orienting the receiving coils orthogonally with respect to one another, the likelihood of at least one of the receiving coils being aligned with a charging field emitted by a charging device increases substantially.

According to certain embodiments, an electronic device comprises a plurality of coils configured to transmit charging power; a communication circuit; at least one processor; and at least one memory. The at least one memory stores instructions that, when executed by the at least one processor, causes the at least one processor to perform a plurality of operations. The plurality of operations comprises transmitting a first signal for requesting device-related information to a plurality of external electronic devices through the communication circuit, receiving a corresponding plurality of first response signals in response to the first signal from the plurality of external electronic devices through the communication circuit, selecting at least one external electronic device from among the plurality of external electronic devices on the basis of the plurality of first response signals, and upon selecting the at least one selected external electronic device, transmitting a second signal that indicates the at least one selected external electronic device and comprises at least information associated with the plurality of external electronic devices to the plurality of external electronic devices via the communication circuit.