Abstract: This disclosure provides systems, methods and apparatus for power converters and particularly power converters for wireless power transfer to remote systems such as electric vehicles. In one aspect, the disclosure provides an electronic power supply. The electronic power supply includes at least first and second half-bridge circuitries. The first half-bridge circuitry includes semiconductor material of a first type. The second half-bridge circuitry of the H-bridge includes semiconductor material of a second type. The first semiconductor material type is different from the second semiconductor material type.

Abstract: An apparatus, a system and a method for wireless power transfer are disclosed. A method of forming a physical core of a wireless power transfer device includes positioning two or more electromagnetically permeable members adjacent to one another and applying longitudinal pressure to an end of the electromagnetically permeable members, the electromagnetically permeable members at least partially encapsulated in retaining compound. A wireless power transfer device includes a casing in which is housed an induction coil, a plurality of electromagnetically permeable members arranged in a line and a retaining compound.

Abstract: Systems, methods, and apparatus are disclosed for wirelessly charging an electric vehicle. In one aspect, a method of wirelessly charging an electric vehicle is provided. The method includes, obtaining a request from the electric vehicle for a level of charging power to be delivered from a power transmitter to the electric vehicle via a charging field. The method further includes controlling a current or voltage of the power transmitter based on a power efficiency factor and the requested level of charging power.

Abstract: Dynamic wireless charging systems may involve coordinating multiple charging base pads to provide coordinated, continuous power transfers to a moving receiver along the distance in which the dynamic wireless charging system is installed. These dynamic systems may require a large number of coils (base pads) which may be components in base array networks (BAN modules). The BAN modules may provide for simplified installation and system design wherein the BAN modules may be preassembled and self-contained, drop-in-place units. The layout and design of the BAN modules may be such that they may contain charging base pads, local controllers, distribution circuitry, and switching controls. The sizing of the BAN modules may dramatically affect the usability and practicality of such dynamic systems. The sizing of the BAN modules may be dependent upon the pitch between vehicle pads on electric vehicles and base pad pitch within the BAN modules.

Abstract: Dynamic systems may require a large number of coils (charging pads) which may be installed into the roadway to wirelessly provide power to electric vehicles as they are traveling along the roadway. The current in each of these coils may need to be turned on and off as a vehicle drives over the coils in order to efficiently utilize power and properly convey power to the passing vehicles. The supply network behind these coils may need to be capable of managing the individual coils with minimal infrastructure and cost as well as be capable of distributing the required power from the power grid to these pads efficiently and safely. The supply network may include charging coils, switches, local controllers, and distribution circuitry within a modular element, which may receive power from external sources and may be controlled by a central controller.

Abstract: Dynamic wireless charging systems may involve coordinating multiple charging base pads to provide coordinated, continuous power transfers to a moving receiver along the distance in which the dynamic wireless charging system is installed. The layout and design of the charging base pads, the current flow through the charging base pads, and the sequencing of charging base pad activation and current flow implemented may dramatically affect the power transfers and practicality of such dynamic systems. The sequencing and control of these coils may need to be capable of managing the individual coils with minimal infrastructure as well as be capable of distributing the required power from the power grid to these pads efficiently and safely, and may comprise charging base pads, controllers to control the power flow to, activation of, and current flow direction within the base pads.

Abstract: Various systems, methods, and apparatuses for operating a wireless charging device in an electric vehicle are disclosed. One method includes detecting a system fault indicative of one or more faults in the wireless charging device in the electric vehicle or in the transmitter. The method further includes determining a fault severity level from a plurality of fault severity levels based on a type of the system fault detected. A total number of types of system faults can be greater than a total number of the plurality of fault severity levels. The method further includes performing one or more system fault response operation based on the determined fault severity level. Each of the plurality of fault severity levels can be associated with a different set of system fault response operations.

Abstract: This disclosure provides systems, methods, and apparatuses for controlling wireless charging between a first entity and a second entity. For example, the apparatus may include a receiver communication circuit of the first entity configured to receive a current from a second entity via electromagnetic induction during the charging or alignment with the second entity. The apparatus may include a frequency measurement circuit configured to determine an operating frequency of the received current or a voltage induced by the electromagnetic induction. The apparatus may include a controller configured to compare the operating frequency to a threshold and adjust an operation of the charging or the alignment based on the comparison.

Abstract: Systems and methods in accordance with particular embodiments provide for alignment of an electric vehicle induction coil with a base system induction coil through a determination of the phase of a base system induction coil current signal. In certain embodiments, an electric vehicle induction coil that receives a transmission signal can be determined to be in greater alignment with a base system induction coil that transmits the transmission signal as the phases of the current signals at the base system induction coil and the electric vehicle induction coil converge. One embodiment includes a method of receiving wireless power, including detecting a transmission signal in a wireless power transmission, the transmission signal comprising periodic variations between a first frequency and a second frequency. The method further includes determining a phase of a base system induction coil signal based on the detected transmission signal.

Abstract: This disclosure provides methods and apparatus for use in wireless power transfer and particularly wireless power transfer to remote system such as electric vehicles. In one aspect a wireless power transfer system comprises a wireless power transfer device comprising a first connector portion; an electrical device comprising a second connector portion; and a wiring harness comprising a cable, a first end connector portion at one end of the cable configured to be removably connected to the first connector portion, and a second end connector portion at the other end of the second connector portion. In another aspect the the cable configured to be removably connected to wiring harness comprises a plurality of cables, each comprising a plurality of conductive filaments; and a connector portion comprising a plurality of pins each comprising a recessed end, wherein an end of each cable is soldered into the respective recessed ends.

Abstract: One aspect provides a wireless power transmitter. The wireless power transmitter includes a transmit antenna configured to generate a field for wireless transmit power in both a first and second configuration. The wireless power transmitter further includes a first capacitor. The wireless power transmitter further includes at least one switch configured to selectively connect the first capacitor in one of the first and second configuration. The first capacitor can be in series with the transmit antenna in the first configuration and in parallel with the transmit antenna in the second configuration.

Abstract: Systems, methods, and apparatuses for receiving charging power wirelessly are described herein. One implementation may include an apparatus for receiving charging power wirelessly from a charging transmitter having a transmit coil. The apparatus comprises a receiver communication circuit, coupled to a receive coil and to a load. The receiver communication circuit is configured to receive information associated with at least one characteristic of the charging transmitter. The apparatus further comprises a sensor circuit configured to measure a value of a short circuit current or an open circuit voltage associated with the receive coil. The apparatus further comprises a controller configured to compare the value of the short circuit current or the open circuit voltage to a threshold charging parameter set at a level that provides charging power sufficient to charge the load.

Abstract: Systems, methods and apparatus for wireless power transfer and particularly wireless power transfer to remote systems such as electric vehicles are disclosed. In one aspect an induction coil is provided comprising a plurality of substantially co-planar coils formed from one or more lengths of conducting material, each length of conducting material being electrically connectable at each end to a power source or battery, and wherein at least one of the lengths of conducting material is continuously wound around two or more of the coils. In another aspect, a method is provided for forming such an induction coil. In yet another aspect, a switching device is operable to alter the configuration of the coils, for example in response to a detected characteristic of another induction coil or device coupled thereto.

Abstract: One aspect provides an apparatus configured to receive wireless charging power and wired charging power. The apparatus includes a first rectifier configured to receive wired charging power and to provide a first rectified output. The apparatus further includes a second rectifier configured to receive wireless charging power and to provide a second rectified output. The apparatus further includes a power-factor correction (PFC) module configured to receive the first and second rectified outputs, and further configured to provide a power-factor corrected output. The apparatus further includes an isolated DC-DC converter configured to receive the power-factor corrected output and to provide an isolated DC output. The apparatus further includes and a battery configured to receive the isolated DC output.

Abstract: This disclosure provides systems, methods and apparatus for power converters and particularly power converters for wireless power transfer to remote systems such as electric vehicles. In one aspect, the disclosure provides an electronic power supply. The electronic power supply includes at least first and second half-bridge circuitries. The first half-bridge circuitry includes semiconductor material of a first type. The second half-bridge circuitry of the H-bridge includes semiconductor material of a second type. The first semiconductor material type is different from the second semiconductor material type.

Abstract: A high-speed serial data transceiver includes multiple receivers and transmitters for receiving and transmitting multiple analog, serial data signals at multi-gigabit-per-second data rates. Each receiver includes a timing recovery system for tracking a phase and a frequency of the serial data signal associated with the receiver. The timing recovery system includes a phase interpolator responsive to phase control signals and a set of reference signals having different predetermined phases. The phase interpolator derives a sampling signal, having an interpolated phase, to sample the serial data signal. The timing recovery system in each receiver independently phase-aligns and frequency synchronizes the sampling signal to the serial data signal associated with the receiver. A receiver can include multiple paths for sampling a received, serial data signal in accordance with multiple time-staggered sampling signals, each having an interpolated phase.

Abstract: A multiphase IPT primary track conductor arrangement comprising a first phase conductor and a second phase conductor, the conductors being arranged substantially in a plane and so as to overlap each other and being arranged such that there is substantially balanced mutual coupling between the phase conductors.

Abstract: A high-speed serial data transceiver includes multiple receivers and transmitters for receiving and transmitting multiple analog, serial data signals at multi-gigabit-per-second data rates. Each receiver includes a timing recovery system for tracking a phase and a frequency of the serial data signal associated with the receiver. The timing recovery system includes a phase interpolator responsive to phase control signals and a set of reference signals having different predetermined phases. The phase interpolator derives a sampling signal, having an interpolated phase, to sample the serial data signal. The timing recovery system in each receiver independently phase-aligns and frequency synchronizes the sampling signal to the serial data signal associated with the receiver. A receiver can include multiple paths for sampling a received, serial data signal in accordance with multiple time-staggered sampling signals, each having an interpolated phase.

Abstract: A system and method is provided for phase interpolator based transmission clock control. The system includes a transmitter having a phase interpolator coupled to a master timing generator and a transmission module. The phase interpolator is also coupled to a receiver interpolator control module and/or an external interpolator control module. When the system is operating in repeat mode, the transmitter phase interpolator receives a control signal from a receiver interpolator control module. The transmitter phase interpolator uses the signal to synchronize the transmission clock to the sampling clock. When the system is operating in test mode, a user defines a transmission data profile in an external interpolator control module. The external interpolator control module generates a control signal based on the profile. The transmitter phase interpolator uses the signal to generate a transmission clock that is used by the transmission module to generate a data stream having the desired profile.

Abstract: An electronic device (100) configured to provide a localized haptic response to a user is provided. The electronic device (100) includes an interface assembly (102) having a user interface surface (600) with a display (206) disposed beneath the user interface surface (600). A compliance member, such as a haptic feedback bezel (209) is disposed beneath the display (206). The compliance member includes one or more cantilever members (210) having motion generation devices (402) coupled thereto. Each cantilever member (210) includes an ell (303) that passes about the display (206) and couples to the user interface surface (600). When the motion generation device (402) is actuated, a haptic force is delivered to the user interface surface (600) through the ell (303).