Motorola Solutions, Inc.

Sin Keng Lee

Chee Khon Chong

Wei Lun Oo

Teik Siew Tan

Kow Chee Chong

Macwien Krishnamurthi

Chin Keong Alexander Oon

Swee Hak Law

Ya Yeing Lo

Fook Teng Fam

Sue Ling Tan

An apparatus, device, and charging system are provided. The apparatus comprises a primary stationary receive coil and a secondary rotatable receive coil, the primary stationary receive coil being electronically coupled to the secondary rotatable receive coil. The secondary rotatable receive coil provides a charge mode position when rotated in a same plane as the primary stationary receive coil. The secondary rotatable receive coil provides non-charge mode position when retracted back against the primary stationary receive coil. The coils may be coupled is series and or parallel configurations. The primary stationary receive coil may be integrated within or appended to a housing. The secondary rotatable receive coil may be integrated within or coupled to a rotatable clip coupled to the housing. Rotation of the clip extends a charging configuration with which to charge the primary stationary receive coil and the secondary rotatable receive coil.

Apparatus and system with rotatable housing for harvesting magnetic energy

A wireless power transfer device including a first power amplifier configured to generate a first drive signal, a second power amplifier configured to generate a second drive signal, a first transmitter coil configured to generate a first magnetic field having a first magnitude in response to receiving the first drive signal, and a second transmitter coil configured to generate a second magnetic field having a second magnitude in response to receiving the second drive signal. The wireless power transfer device also includes a repeater coil magnetically coupled to the first transmitter coil and the second transmitter coil, and configured to generate a third magnetic field having a third magnitude. The third magnitude is greater than the first magnitude and greater than the second magnitude. The repeater coil is configured to magnetically transfer power to an external device.

Method of wirelessly transferring power

A wireless power transfer device including a first coil having a first portion, and configured to generate a magnetic field, and a second coil having a second portion. The second coil positioned with respect to the first coil such that the first portion of the first coil overlaps the second portion of the second coil in an overlap region. The wireless power transfer device also includes a power amplifier electrically coupled to one selected from a group consisting of the first coil and the second coil, and a flux concentrator aligned with the overlap region and configured to concentrate a magnetic flux of the magnetic field. The power amplifier configured to output a drive signal.

Wireless power transfer device and method

An apparatus and method for full-orientation over-the-air charging includes a receiver coil associated with a portable electronic device for wireless charging; and a repeater coil associated with a device selectively configured to engage or support the portable electronic device for wireless charging, wherein the device is one of a cover, holster, or case for the portable electronic device; wherein, when the device is selectively engaged or supporting the portable electronic device, a portion of the repeater coil overlaps a portion of the receiver coil forming a magnetic coupling therebetween and supporting wireless charging of the portable electronic device in a plurality of orientations of the portable electronic device relative to a transmitter coil.

Apparatus and method for full-orientation over-the-air charging in portable electronic devices

A power transfer interface () is formed of a primary repeater coil () and one or more secondary repeater coils () coupled via a wired interconnect (), and integrated within a garment (). The repeater coils operate as part of a wireless charging or powering system in which a transmit coil (), located in a vehicle or a radio, is driven to magnetically couple a wireless radio frequency (RF) power signal to the primary repeater coil () which in turn transfers the RF power signal to the secondary repeater coil () via the wired interconnect (). The system further comprises a portable electronic device () having a receive coil (). The receive coil () wirelessly receives the RF power signal from the secondary repeater coil (), which can in turn be used to power the portable device or charge a battery of the portable device.

Method and apparatus for power transfer for a portable electronic device

An antenna structure () commences at a feed point () that is coupled to an inverted F antenna section (). The inverted F antenna section is coupled to a monopole section () that is further coupled to a helical section (). The inverted F section, monopole section, and helical section are coupled in series together.

Growing community of inventors

Penang, Malaysia

Sin Keng Lee