Abstract: A smart battery includes a battery and a measurement module coupled to measure electrical characteristics of the battery. The smart battery also includes processing logic and a communication interface configured to receive the electrical characteristics and transmit the electrical characteristics to a receiver.

Abstract: A wireless power transfer system includes a transmitter configured to transmit power to a receiver, for example, through coupled resonators. The transmitter receives feedback from the receiver, and uses the feedback to control the power transmission, to control a parameter at the receiver, for example, a rectified voltage output by the receiver. The feedback to the transmitter may be provided, for example, by an out-of-band radio system between the transmitter and receiver, by a reflection coefficient at the transmitter, and/or by an encoded modulation of power in the receiver, for example, in an impedance matching module. The transmitter may control the transmitted power, for example, by controlling a transmitter signal generator voltage (VSiG), a transmitter gate driver voltage (VGD), a transmitter amplifier voltage (VPA), and/or an impedance setting in a transmitter impedance matching module.

Abstract: A wireless charging system for use in vehicles includes power transmitting coils which are used for resonant power transfer to power receiving devices in the vehicle. The system includes a detection system for detecting power receiving devices in the vicinity of the transmitting coils so that only the power transmitting coils having objects detected nearby are activated. The system also includes a tuning circuit that enables power transmitting coils to be tuned with respect to each other to increase the power delivery range or detuned with respect to each other to decrease interference between coils.

Abstract: An authentication between a wireless charger and a device configured to receive wireless energy from the wireless charger includes establishing a wireless data channel between the wireless charger and the device. An authentication challenge signal is driven onto a transmit charging coil of the wireless charger and a receive charging coil of the device is configured to receive the authentication challenge signal. The device sends an authentication response signal to the wireless charger based at least in part on the authentication challenge signal.

Abstract: A charging status or a location of a wireless charger is provided. A vehicle may charge at a particular wireless charger based at least in part on the charging status of the wireless charger and/or the location of the wireless charger.

Abstract: A wireless power transfer system (100) includes a transmitter (110) configured to transmit power to a receiver (120), for example, through coupled resonators (111,121). The transmitter receives feedback from the receiver, and uses the feedback to control the power transmission, to control a parameter at the receiver, for example, a rectified voltage output by the receiver. The feedback to the transmitter may be provided, for example, by an out-of-band radio system (117, 126) between the transmitter and receiver, by a reflection coefficient at the transmitter (116), and/or by an encoded modulation of power in the receiver, for example, in an impedance matching module (121). The transmitter may control the transmitted power, for example, by controlling a transmitter signal generator voltage (VSIG), a transmitter gate driver voltage (VGD), a transmitter amplifier voltage (VpA), and/or an impedance setting in a transmitter impedance matching module (111).

Abstract: A transmit charging coil is driven to wirelessly transfer energy to a receiving charging coil. The wireless energy transfer can be adjusted in response to detecting the receive charging coil. Navigation of an un-manned vehicle may be adjusted in response to the wireless energy transfer.

Abstract: A smart battery includes a battery and a measurement module coupled to measure electrical characteristics of the battery. The smart battery also includes processing logic and a communication interface configured to receive the electrical characteristics and transmit the electrical characteristics to a receiver.

Abstract: A wireless charging system for use in vehicles includes power transmitting coils which are used for resonant power transfer to power receiving devices in the vehicle. The system includes a detection system for detecting power receiving devices in the vicinity of the transmitting coils so that only the power transmitting coils having objects detected nearby are activated. The system also includes a tuning circuit that enables power transmitting coils to be tuned with respect to each other to increase the power delivery range or detuned with respect to each other to decrease interference between coils.