Abstract: The disclosure relates to inductive charging systems comprising at least one power access point (PAP) comprising a primary inductor connectable to a power supply, a PAP credential characterizing said PAP and a charger link comprising at least one wireless communication component; at least one device comprising a secondary inductor, a device credential characterizing said device and a device link comprising at least one wireless communication component; and a power controller comprising a communicator comprising at least one wireless communication component and a server having a database. The disclosure further relates to methods of controlling the inductive charging performed by an inductive charging system.

Abstract: A system and method for inductively providing electrical power at a plurality of power levels to electrical devices. The system may include an inductive power outlet unit conductively coupled to a power supply and an inductive power receiver unit associated with the electrical device. The inductive power outlet unit includes a driver device operable to generate power at a plurality of power levels and electrical power is transferred to the electrical device at a power level selected from the plurality of power levels, in accordance with electrical power requirements of the electrical device. The power receiver may be operable in a plurality of modes having a secondary inductor configured to operate selectively with a plurality of inductance values.

Abstract: A wireless power receiver, configured to receive power from a wireless power outlet and to communicate with a host for providing electrical power thereto, is provided comprising a secondary inductive coil configured to receive power from a primary coil of the wireless power outlet, and a host control interface configured to facilitate communication between the wireless power receiver and the host. The host control interface comprises contacts, one or more information-carrying contacts configured to conduct at least one of a clock and a data signal between the wireless power receiver and the host, supply input and power supply ground contacts configured to cooperate to provide current between the wireless power receiver and the host, an interrupt-signal contact configured to carry an INTERRUPT signal from the wireless power receiver and the host, and an enable-signal contact configured to carry an ENABLE signal from the host to the wireless power receiver.

Abstract: A control circuit for an inductive power outlet configured to transfer power to an inductive power receiver includes a resonant circuit having a characteristic resonant peak and connected to a primary coil configured to inductively couple with a secondary coil of the inductive power receiver, a frequency driver operable to provide a driving voltage oscillating at an operating frequency higher than the characteristic resonant peak of the resonant circuit across the primary coil, a magnitude detector operable to monitor primary coil voltage, and a data demodulator operable to detect modulated peaks in primary coil voltage indicating that a communications modulator of the inductive power receiver has transitioned from a first state to a second state. The communications modulation determines a characteristic frequency of the peaks and extracts modulated data sent in communication signals from the inductive power receiver.

Abstract: An inductive power transfer system for charging batteries may include an inductive power transmitter, an inductive power receiver and an electrochemical cell or battery. The inductive power receiver may include a secondary inductor incorporated in enabled batteries or battery packaging, which when inductively coupled to a primary inductor of an inductive transmitter is operable to supply a potential across the electrochemical cell or battery thereby enabling the cell or battery to be charged or maintained at a charged level. The inductive battery may be in the shape of an industry standard battery.

Abstract: A triggerable power transmitter for power transmission from a primary coil to an inductively coupled secondary coil in a power receiver has a primary coil; a driver for electrically driving the primary coil; a front end receiving analog signal indicative of resonance properties of the primary coil and generating digital information in response to the analog signal; and a processor capable of: determining if said primary coil is coupled to a secondary coil based on the digital information, and triggering power from the primary coil to said secondary coil when said primary coil is inductively coupled to said secondary coil. The effective inductance of the primary coil increases reducing the resonance frequency when a secondary coil is inductively coupled to the primary coil. However, foreign material such as a metal sheet placed on the primary coil increases the effective resistance thus shortening the decay time of the resonance.

Abstract: A control circuit for an inductive power outlet configured to transfer power to an inductive power receiver includes a resonant circuit having a characteristic resonant peak and connected to a primary coil configured to inductively couple with a secondary coil of the inductive power receiver, a frequency driver operable to provide a driving voltage oscillating at an operating frequency higher than the characteristic resonant peak of the resonant circuit across the primary coil, a magnitude detector operable to monitor primary coil voltage, and a data demodulator operable to detect modulated peaks in primary coil voltage indicating that a communications modulator of the inductive power receiver has transitioned from a first state to a second state. The communications modulation determines a characteristic frequency of the peaks and extracts modulated data sent in communication signals from the inductive power receiver.

Abstract: An inductive power receiver including a resonant circuit, a rectifier, a rectified current sense, and a communication and control unit includes a communications modulator and at least one signal generator operable to generate a set of communication signals including a series of pulses generated at characteristic frequencies. Communication signals provide instructions for an inductive power outlet to regulate power transfer to the inductive power receiver.

Abstract: A system for locating a locator device includes a seeker device that sends a seeker signal which is received by the locator device and the locator device is operable to transmit a locator signal when a seeker signal is received. The locator device is used to provide an indication of the location of the locator device.

Abstract: An inductive power transfer system is provided that includes at least one inductive power receiver having at least one secondary inductor for forming an inductive couple with a primary inductor and providing power to an electric load and at least one inductive power outlet having at least one primary inductor wired to a power supply via a driver configured to provide a driving voltage across the primary inductor. The driving voltage is oscillating at a transmission frequency significantly different from the natural frequency of the inductive couple. The system further includes at least one power monitor and at least one frequency modulator operable to adjust the natural frequency of the inductive couple thereby regulating power provided to the electric load.

Abstract: An inductive power receiver including a resonant circuit, a rectifier, a rectified current sense, and a communication and control unit includes a communications modulator and at least one signal generator operable to generate a set of communication signals including a series of pulses generated at characteristic frequencies. Communication signals provide instructions for an inductive power outlet to regulate power transfer to the inductive power receiver.

Abstract: The disclosure relates to inductive charging systems comprising at least one power access point (PAP) comprising a primary inductor connectable to a power supply, a PAP credential characterizing said PAP and a charger link comprising at least one wireless communication component; at least one device comprising a secondary inductor, a device credential characterizing said device and a device link comprising at least one wireless communication component; and a power controller comprising a communicator comprising at least one wireless communication component and a server having a database. The disclosure further relates to methods of controlling the inductive charging performed by an inductive charging system.