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: A wireless power transmitter is provided for power transmission to a wireless power receiver. The transmitter comprises a primary coil to transfer power to a secondary coil of the wireless power receiver, a power supply, a driver to provide an electric potential from the power supply to the primary coil, a monitoring system to measure electrical flow parameters of the primary coil, and to filter the measured electrical flow parameters thereby producing a response signal, and a controller to direct operation of the wireless power transmitter. The controller is configured to perform error checking by directing the driver to provide the electric potential as a superposition of a transmission signal and a sensing signal, the filter characteristics comprising electrical flow parameters of the and sensing signal, and detecting, based a difference between the response and sensing signals, an error condition indicative of a foreign object.

Abstract: A wireless power receiver, configured to inductively receive power from a wireless power outlet for powering a load, and to encode a signal for detection by the wireless power outlet, is provided. The wireless power receiver comprising a receiver circuit having a secondary coil connected to the load and configured to receive power from a primary coil associated with the wireless power outlet, and a resonance adjuster electrically connected to the secondary coil and configured to adjust the resonant frequency of the receiver circuit, between one of two resonant frequencies, by selectively modifying the receiver circuit. The wireless power receiver further comprises a controller configured to operate the resonance adjuster to encode the signal by adjusting the resonant frequency of the receiver circuit, wherein the signal comprises a plurality of data blocks carrying information, alternating with a plurality of power blocks each carrying a power instruction.

Abstract: In a system and method for transferring power from a wireless power outlet to a wireless power receiver, an outlet transmits a first-type ping signal transferring a burst of energy to the wireless power receiver. The outlet includes a detector able to detect when the receiver activates an over voltage protection mechanism. When the OVP is activated the outlet may transmit a lower energy second-type ping signal.

Abstract: A method of transferring power inductively is provided, the method comprising providing a wireless power outlet comprising a primary inductive coil connected to a power source via a driver, providing a secondary unit configured and disposed to form an inductive couple with the wireless power outlet for power transfer, emitting, by the wireless power outlet, one or more digital pings at a predetermined power level, determining if at least one or more of the digital pings engaged the secondary unit, repeating, if engagement of a secondary unit was not determined to have occurred, the emitting and determining until a digital ping engages a secondary unit, wherein the power of the digital pings is increased relative to the previous emitting, and transferring power from the wireless power outlet to the secondary unit according to a wireless power transfer standard in accordance with the power of the engaged digital ping.

Abstract: The disclosure herein relates to systems and methods for wireless power transfer between a wireless power outlet and a wireless power receiver. In particular, the disclosure relate to a wireless power receiver enabled to monitor a sensor arrangement associated with the secondary coil of the power receiver and further determine its orientation relative to the wireless power outlet and calculate the electric power loss for an orientation. Furthermore, a monitoring unit associated with the wireless power receiver is operable to receive power transfer and orientation data from the sensor arrangement such as voltage, current, capacity, resistance, temperature and the like, to calculate efficiency data from the sensor data and further operable to communicate the efficiency data to a communication and control.

Abstract: The disclosure relates to systems and methods for controlling a wireless power transfer system based upon Inductive Charging Technology using frequency based signaling communication protocol, operable to function in modes of Standby, Digital Ping, Identification, Power Transfer and End of Charge (EOC). The power transfer system comprising at least one wireless power outlet associated with a wireless power transmitter coil and at least one electrical device associated with a wireless power receiver coil, where the wireless power receiver coil is in multi-directional communication with the wireless power transmission of a message transmitter coil. The amount of power transferred is controlled by feedback communication between the receiver and the transmitter configured to increase or NO decrease power.

Abstract: An inductive power transfer system operable in a plurality of modes comprising an inductive power transmitter capable of providing power to the inductive power receiver over an extended region. The system may be switchable between the various modes by means of a mode selector operable to activate various features as required, such as: an alignment mechanism a resonance tuner, an auxiliary coil arrangement or a resonance seeking arrangement. Associated methods are taught.

Abstract: The disclosure relates to systems and methods for managing a wireless powering system for power transfer to electrical devices, providing central management console through a communication network. The wireless powering system comprising at least one wireless power outlet with an integrated communication module and at least one management server and is further operable is further operable to provide location based services when coupled with a software application. The management system, of the current disclosure, is enabling remote health check and maintenance of all of wireless power outlets within the network. Further, the management system allows for complete monitoring of a deployment according to system administrator rights and policy management coupled with command and control functioning to determine allowed/disallowed functionality while transferring powering to an electrical device in a specific venue.

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 probing coil receives analog signals indicative of resonance properties of the primary coil; analog filters may be used to filter frequencies, and a processor capable of generating digital information in response to the analog signal and 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. A resistor may be selectably connected in series with the primary coil and shorted out when power is transmitted.

Abstract: An inductive power transmitter for inductive power transmission to an inductive power receiver is provided, comprising a primary coil, capable of being inductively coupled to a secondary coil in the inductive power receiver, a power supply and an associate driver configured to provide a varying electrical potential from the power supply to the primary coil, a monitoring system configured to measure electrical flow parameters of the primary coil, and a controller configured to detect, based on the electrical flow parameters measured by the monitoring system, an error condition indicative of a foreign object introduced between the primary coil and the secondary coil, and to facilitate, when the error condition is detected, interrupting the electrical potential to the primary coil.

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: An inductive power transfer system includes an inductive power transmitter in the shape of a container that is capable of holding one or more electrical devices. The system is operable to transfer power inductively to devices stowed within the container via inductive power receivers. The inductive power transmitter includes at least one primary inductor configured to couple inductively with at least one secondary inductor and at least one driver configured to provide a variable electric potential at a driving frequency across said primary inductor. The inductive power receiver may comprise at least one secondary inductor connectable to a receiving circuit and an electric load, said secondary inductor configured to couple inductively with said at least one primary inductor such that power is transferred to said electric load.

Abstract: A wireless power transmitter and method for providing power to a remote secondary coil of a power receiver include a primary coil, a driver, and a signal receiving circuit wherein the power transmitter is configured to switch between a standby mode and a transmission mode. In the standby mode, the power transmitter is configured to wait for an activation signal from the power receiver. In the transmission mode, the driver is operable to provide an oscillating voltage across the primary coil such that the primary coil transmits power to the remote secondary coil; and the signal receiving circuit receives feedback signals from the power receiver concurrently with uninterrupted power transfer.

Abstract: A wireless power system comprising a secondary unit and a wireless power outlet configured to provide an electric charge wirelessly to the secondary unit comprises a primary inductive coil connected to a power source via a driver configured to provide an oscillating driving voltage to the primary inductive coil. The secondary unit is configured to receive an electric charge wirelessly from the wireless power outlet, and comprises a secondary inductive coil wired to an electric load. The wireless power outlet and secondary unit are each configured to ensure compatibility with one another.

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 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.