Patents Assigned to Powermat Technologies Ltd
  • Patent number: 9960640
    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.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: May 1, 2018
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Elieser Mach, Arik Rofe, Oola Greenwald, Guy Raveh
  • Patent number: 9843202
    Abstract: An inductive power transfer system and methods for controlling efficient operational wireless power transfer to an electrical device. The system includes an inductive power outlet, an inductive power receiver and a signal transfer system communicating power transfer instruction from receiver to outlet, while transferring power from the outlet to the receiver. The present invention relates to wireless power transfer systems and methods incorporating a current limiter activation mechanism to allow power transfer at an extended operational range, providing a technical solution when an inductive power outlet and an inductive power receiver are laterally misaligned.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: December 12, 2017
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Moti Kdoshim, Moti Ashery, Elieser Mach, Oola Greenwald, Itamar Cohen-Ogen
  • Patent number: 9837827
    Abstract: An inductive power transmitter comprises a first primary inductor configured to inductively couple a first secondary inductor and configured to hold a first variable electrical potential. The transmitter also comprises a second primary inductor configured to inductively couple a second secondary inductor that is configured to hold a second variable electrical potential. The primary inductors are arranged in an overlapping fashion on a substrate forming a charging surface. The first primary inductor is connected to a first driver capable of providing the first variable electrical potential, and the second primary inductor is connected to a second driver capable of providing the second variable electrical potential in a first embodiment while a second possibility is that the first primary inductor is connected to a first driver capable of providing the first variable electrical potential, and the second primary inductor comprises capacitor and is not connected to a driver.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: December 5, 2017
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventor: Amir Ben-Shalom
  • Patent number: 9813117
    Abstract: A vehicle inductive power assembly and method for transferring electrical power inductively to an electrical device, in a motorized vehicle. The system includes an inductive power transfer system which is configured to provide the electrical power to the electrical device as well as a communications security system which is configured to establish a secure communications channel between the inductive power transfer system and the electrical device. Following activation of the inductive power transfer system, the communications security system initiates a handshaking procedure between the inductive power transfer system and the electrical device. If the handshaking procedure is successful the communications security system instructs the inductive power transfer system to commence providing the electrical power to the electrical device.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: November 7, 2017
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Rotem Shraga, Arye Nudelman, Ilya Gluzman, Assaf Gad
  • Patent number: 9685795
    Abstract: Wireless power transfer between a power transmitter and a power receiver may include a power transfer established by a detector of the wireless power transmitter detecting a magnetic field from a wireless power receiver in proximity to the wireless power transmitter and activating the wireless power transmitter to transfer power to the wireless power receiver.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: June 20, 2017
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Yossi Azancot, Amir Ben-Shalom, Oola Greenwald, Arik Rofe, Alfred Liebovitz, Dov Rhodes, Noam Meyuhas
  • Patent number: 9666360
    Abstract: A pin-less power coupling arrangement comprising at least one pin-less power jack; the power jack comprising a primary coil shielded behind an insulating layer for inductive coupling to a pin-less power plug; said power plug comprising a secondary coil wherein said insulating layer is substantially flat and said power plug and said power jack may be aligned by an alignment means. Various such alignment means are discussed as are enabled surfaces for supporting inductive power jacks and inductive plugs coupled to various appliances.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: May 30, 2017
    Assignee: POWERMAT TECHNOLOGIES, LTD.
    Inventors: Yossi Azancot, Amir Ben-Shalom, Oola Greenwald, Arik Rofe
  • Patent number: 9548625
    Abstract: Wireless power transfer between power transmitters and power receivers may be established by a digital ping phase during which the wireless power transmitter applies a power signal and waits for a valid response message from the power receiver. The response message may include an identification code and a checksum byte used by the power transmitter to validate the identification code. When a valid response is received, the power transmitter transitions to a power transfer phase.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 17, 2017
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Elieser Mach, Oz Moshkovich, Ian Podkamien, Yuval Koren
  • Patent number: 9520740
    Abstract: A shielding arrangement for preventing AM radio interference when a wireless charger is used in a vehicle has a plurality of parallel conductors arranged at a distance from one another responsive to a frequency desired to be attenuated. An interconnection arrangement includes a solid conductive junction and connects the conductors to one another without forming loops, and to ground. The conductors are traces disposed on a PCB. Additional parallel conducts are disposed on the other side of the PCB at an orthogonal orientation with respect to the first conductors. The spacing between the conductors is determined in response to the frequency desired to be attenuated, as well as frequencies thereabove that are desired to be propagated therethrough, such as mobile telephone signals. The solid conductive junction that is disposed on the printed circuit board is electrically and thermally conductive, such as copper.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: December 13, 2016
    Assignees: VISTEON GLOBAL TECHNOLOGIES, INC., POWERMAT TECHNOLOGIES LTD.
    Inventors: Karen Lee Chiles, John Robert Balint, III, Kevin Grady, Oola Greenwald, Gary O'Brien
  • Patent number: 9520724
    Abstract: A method for wirelessly powering a load over an inductive link, wherein the inductive link is between a primary side and a secondary side, including transmitting a first power from the primary side to the secondary side; receiving by the primary side a modulated data signal from the secondary side; demodulating the received data signal; determining, based on the demodulated data signal, whether to transmit power to the load; and transmitting, based on the determination, power to the load of the secondary side over the inductive link.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: December 13, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventor: Sami Anttila
  • Patent number: 9478991
    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.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: October 25, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Eran Weissentern, Arik Rofe, Amir Ben-Shalom, Guy Raveh, Elieser Mach, Oola Greenwald
  • Patent number: 9412512
    Abstract: There is provided a method including transmitting inductively a first signal, receiving inductively a second signal in response to the first signal, determining whether the inductively received signal includes a modulation, and adjusting a power of the transmitted signal on the basis of a modulation of the received signal.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: August 9, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Sami Anttila, Ville Byman
  • Patent number: 9362049
    Abstract: An inductive power receiver configured for receiving power transferred from an inductive power outlet having a primary coil includes a secondary coil configured to form an inductive couple with the primary coil thereby facilitating the power transfer. The inductive power receiver further includes a transmission circuit having a variable amplifier configured to vary the voltage of the power drawn by the secondary coil, and a modulator configured to control the variable amplifier. The inductive power receiver is configured to modulate a signal by the varying of the voltage. An inductive power outlet configured for transferring power to the inductive power receiver includes a primary coil and a receiving circuit configured to detect changes in voltage of the power transferred and to produce an output signal based on the changes.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: June 7, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Yossi Azancot, Oola Greenwald, Amir Ben-Shalom, Arik Rofe
  • Patent number: 9354620
    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.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: May 31, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Amir Ben-Shalom, Oola Greenwald, Arik Rofe, Asheri Moti, Elieser Mach, Oz Moshkovich, Guy Raveh
  • Patent number: 9337902
    Abstract: An electrical device includes a host charger power management integrated circuit wired to a battery, a wired power input comprising a first VOUT and GND pair of power connectors wired to a first pair of charging inputs of the host charger power management integrated circuit, a wireless power port for conductively connecting with a retrofittable wireless power receiver, said wireless power port comprising a second VOUT and GND pair of power connectors wired to a second pair of charging inputs of the host charger power management integrated circuit; and a power DISABLE connector for communicating a DISABLE signal to disable charging.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: May 10, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Yoel Raab, Moshe Raines, Charle Hamisha, Arye Nudelman, Rotem Shraga, Oola Greenwald
  • Patent number: 9331750
    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.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: May 3, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Elieser Mach, Oz Moshkovich, Itay Sherman
  • Patent number: 9325195
    Abstract: An inductively enabled power pack charging system and method includes an integrated circuit for controlling inductive transfer of power to the power pack and managing communication with an external power source. The system may further include an electrochemical cell for storing energy received from the external power supply and magnetic shielding material for guiding magnetic flux away from the electrochemical cell.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: April 26, 2016
    Assignee: POWERMAT TECHNOLOGIES LTD.
    Inventors: Arkady Katz, Amir Ben-Shalom, Arik Rofe
  • Patent number: 9166440
    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.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: October 20, 2015
    Assignee: Powermat Technologies Ltd.
    Inventors: Amir Ben-Shalom, Arik Rofe, Oola Greenwald, Guy Raveh, Elieser Match
  • Patent number: 9161481
    Abstract: A shielding arrangement for preventing AM radio interference when a wireless charger is used in a vehicle has a plurality of parallel conductors arranged at a distance from one another responsive to a frequency desired to be attenuated. An interconnection arrangement includes a solid conductive junction and connects the conductors to one another without forming loops, and to ground. The conductors are traces disposed on a PCB. Additional parallel conducts are disposed on the other side of the PCB at an orthogonal orientation with respect to the first conductors. The spacing between the conductors is determined in response to the frequency desired to be attenuated, as well as frequencies thereabove that are desired to be propagated therethrough, such as mobile telephone signals. The solid conductive junction that is disposed on the printed circuit board is electrically and thermally conductive, such as copper.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 13, 2015
    Assignees: Visteon Global Technologies, Inc., Powermat Technologies Ltd.
    Inventors: Karen Lee Chiles, John Robert Balint, III, Kevin Grady, Oola Greenwald, Gary O'Brien
  • Patent number: 9136734
    Abstract: A transmission-guard is disclosed for preventing an inductive power outlet from transmitting power in the absence of an inductive power receiver. A transmission lock is associated with an inductive power outlet and a transmission key is associated with an inductive power receiver. The transmission lock is configured to prevent a primary inductor from connecting to the power supply unless triggered by a release signal via the transmission key.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: September 15, 2015
    Assignee: Powermat Technologies, Ltd.
    Inventors: Yossi Azancot, Amir Ben-Shalom, Oola Greenwald, Arik Rofe, Alfred Lei-Bovitz, Dov Rhodes, Noam Meyuhas
  • Patent number: 9124121
    Abstract: An inductive power receiver including a dual purpose inductor wired to an electric load, the dual purpose inductor is configured to inductively couple with a primary inductor wired to a power supply. The dual purpose inductor typically comprises a radio antenna such as a near field communication antenna. A method is described for charging electromagnetic cells via the inductive power receiver.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: September 1, 2015
    Assignee: Powermat Technologies, Ltd.
    Inventors: Amir Ben-Shalom, Noam Meyuhas