A magnetic material for a wireless charging system comprises iron powders and 1-10% by weight of a thermosetting resin. The iron powders are individually insulated by the thermosetting resin. A method for manufacturing the magnetic material for the wireless charging system includes mixing particles of a balance of the iron powders, pressing the mixed particles of the iron powders and the thermosetting resin, and subjecting curing heat treatment to a green compact, where the iron powders are individually insulated by the thermosetting resin.

An apparatus comprises a switch-capacitor network, a power-switch network and a controller. The switch-capacitor network has a plurality of control switches and a plurality of flying capacitors, where the control switches are configured to connect two of the flying capacitors in series in a first configuration and in parallel in a second configuration. The power-switch network has a plurality of power switches and is coupled between an input port having an input voltage and an output port having an output voltage, where the power switches are configured to couple the switch-capacitor network to the input port and the output port in different ways during a charging phase and a discharging phase. The controller is configured to operate the control switches to configure the switch-capacitor network into different configurations during the charging phase or the discharging phase such that a ratio of the output voltage over the input voltage is changed in an operation mode.

An apparatus comprises a switch-capacitor network, a power-switch network and a controller. The switch-capacitor network has a plurality of control switches and a plurality of flying capacitors, where the control switches are configured to connect two of the flying capacitors in series in a first configuration and in parallel in a second configuration. The power-switch network has a plurality of power switches and is coupled between an input port having an input voltage and an output port having an output voltage, where the power switches are configured to couple the switch-capacitor network to the input port and the output port in different ways during a charging phase and a discharging phase. The controller is configured to operate the control switches to configure the switch-capacitor network into different configurations during the charging phase or the discharging phase such that a ratio of the output voltage over the input voltage is changed in an operation mode.

An induction charging device for an electrically operated motor vehicle includes a charging assembly having a charging coil, and a temperature-control assembly having a fluid pipe. The charging coil can be inductively coupled to a primary coil, such that a battery in the motor vehicle can be inductively charged. The charging assembly has a ferrite plate for directing the electromagnetic alternating field, which is established between the charging coil and the fluid pipe, such that waste heat from the ferrite plate and the charging coil can be transmitted to the fluid in the fluid pipe. The fluid pipe is formed by a shell-type metal shielding plate for shielding electromagnetic field emissions and a shell-type lower shell heat-conductingly in contact with the ferrite plate. The metal shielding plate and the lower shell are secured on one another in a fluid-tight manner and spaced apart from one another with a stiffening insert.

An induction charging device for an electrically operated motor vehicle includes a charging assembly having a charging coil, and a temperature-control assembly having a fluid pipe. The charging coil can be inductively coupled to a primary coil, such that a battery in the motor vehicle can be inductively charged. The charging assembly has a ferrite plate for directing the electromagnetic alternating field, which is established between the charging coil and the fluid pipe, such that waste heat from the ferrite plate and the charging coil can be transmitted to the fluid in the fluid pipe. The fluid pipe is formed by a shell-type metal shielding plate for shielding electromagnetic field emissions and a shell-type lower shell heat-conductingly in contact with the ferrite plate. The metal shielding plate and the lower shell are secured on one another in a fluid-tight manner and spaced apart from one another with a stiffening insert.

A mobile device mounting system includes a device case and a mount. The device case includes: an insert including a rectangular bore and defining a set of undercut sections about the rectangular bore; and a first set of magnetic elements arranged in a first pattern about the rectangular bore. The mount includes: a body; a polygonal boss extending from the body and configured to insert into the rectangular bore; a set of locking jaws arranged on the polygonal boss configured to transiently mate with the set of undercut sections to constrain the polygonal boss within the rectangular bore; and a second set of magnetic elements arranged in a second pattern about the polygonal boss and configured to transiently couple to the first set of magnetic elements to transiently retain the mount against the device case and to drive the set of locking jaws toward the set of undercut sections.

A mobile device mounting system includes a device case and a mount. The device case includes: an insert including a rectangular bore and defining a set of undercut sections about the rectangular bore; and a first set of magnetic elements arranged in a first pattern about the rectangular bore. The mount includes: a body; a polygonal boss extending from the body and configured to insert into the rectangular bore; a set of locking jaws arranged on the polygonal boss configured to transiently mate with the set of undercut sections to constrain the polygonal boss within the rectangular bore; and a second set of magnetic elements arranged in a second pattern about the polygonal boss and configured to transiently couple to the first set of magnetic elements to transiently retain the mount against the device case and to drive the set of locking jaws toward the set of undercut sections.

Systems and methods are described for an extended-range positioning system based on foreign-object detection (FOD). In particular, a power-transfer apparatus is disclosed that includes a coil and a foreign-object-detection (FOD) system. The coil is configured to generate a magnetic field based on an electric current running through the coil for transferring power to a receiver device. the FOD system includes a plurality of FOD sense loops, FOD circuitry, and active-beacon receive circuitry. The FOD sense loops detect metal objects within the magnetic field based on changes to an electrical characteristic(s) of one or more of the FOD sense loops. The FOD circuitry processes a modulation pattern of the electrical characteristic(s) of the one or more FOD sense loops and provides first positioning information. The active-beacon receive circuitry processes induced voltage in at least two sense loops to provide second positioning information.

Techniques and apparatuses are described that implement a smart device with an integrated radar system. The radar integrated circuit is positioned towards an upper-middle portion of a smart device to facilitate gesture recognition and reduce a false-alarm rate associated with other non-gesture related motions of a user. The radar integrated circuit is also positioned away from Global Navigation Satellite System (GNSS) antennas and a wireless charging receiver coil to reduce interference. The radar system operates in a low-power mode to reduce power consumption and facilitate mobile operation of the smart device. By limiting a footprint and power consumption of the radar system, the smart device can include other desirable features in a space-limited package (e.g., a camera, a fingerprint sensor, a display, and so forth).

Techniques and apparatuses are described that implement a smart device with an integrated radar system. The radar integrated circuit is positioned towards an upper-middle portion of a smart device to facilitate gesture recognition and reduce a false-alarm rate associated with other non-gesture related motions of a user. The radar integrated circuit is also positioned away from Global Navigation Satellite System (GNSS) antennas and a wireless charging receiver coil to reduce interference. The radar system operates in a low-power mode to reduce power consumption and facilitate mobile operation of the smart device. By limiting a footprint and power consumption of the radar system, the smart device can include other desirable features in a space-limited package (e.g., a camera, a fingerprint sensor, a display, and so forth).