Patent application number | Description | Published |
20090129126 | Single Phase Power Supply for Inductively Coupled Power Transfer Systems - An ICPT system has a single phase power supply which energises a conductive path ( | 05-21-2009 |
20090302688 | Inductive Power Transfer System Pick-Up Circuit - An IPT pick-up circuit includes a resonant circuit including a pick-up inductor and a tuning capacitance in parallel with the pick-up inductor, a control system to control power transfer to the pick-up circuit and a power conditioning impedance provided in series between the resonant circuit and the control system, selected to provide a required power factor in the resonant circuit. | 12-10-2009 |
20090302933 | Tuning methods and apparatus for inductively coupled power transfer (ICPT) systems - A method is provided for controlling a resonant circuit ( | 12-10-2009 |
20100109604 | MULTI POWER SOURCED ELECTRIC VEHICLE - An inductive power transfer (IPT) pad and system for the charging of electric and hybid electric vehicles. The batter of such a vehicle can be selectively coupled to a high power electrical supply for fast charging or a lower power electrical supply for charging using IPT. The batteries of the vehicles are used in a system to control the load demand in an electricity network through variations of the frequency of power supplied. | 05-06-2010 |
20100289340 | INDUCTIVELY COUPLED POWER TRANSFER SYSTEM - An inductively coupled power transfer system has a power pick-up that uses an asymmetrical magnetically permeable core ( | 11-18-2010 |
20110105020 | COMMUNICATIONS SYSTEM - An apparatus for generating and/or transmitting communications signals, the apparatus including a system for generating signals at a first frequency, a system for mixing the frequency of the generated signals from the first frequency down to a second frequency and a near field antenna for receiving the signals at the second frequency and being provided sufficiently near to a wire transmission line so as to wirelessly couple thereto. | 05-05-2011 |
20110116290 | POWER CONTROL - A pick-up circuit for an inductive power transfer (IPT) system includes a series-tuned pick-up coil and a plurality of parallel AC processing circuits provided between the series-tuned pick-up coil and an output, each processing circuit being adapted to produce an output signal based directly or indirectly at least in part on a voltage of the series-tuned pick-up coil and including a switch for selectively coupling the processing circuit to the output so as to selectively provide the respective output signal to the output of the pick-up circuit. | 05-19-2011 |
20110221277 | INDUCTIVELY COUPLED AC POWER TRANSFER - An Inductive Power Transfer System pickup provides a controlled AC power supply by controlled variation of the phase angle between the pickup coil induced voltage (jwMI) and the tuning capacitor C voltage. The phase angle can be varied by maintaining the tuning capacitor C voltage substantially constant for a selected time period. Switches S | 09-15-2011 |
20120025602 | Inductive power transfer apparatus - A magnetic flux pad for receiving or generating magnetic flux. The pad includes two pole areas ( | 02-02-2012 |
20120025603 | Inductive power transfer apparatus - A magnetic flux pad for generating or receiving magnetic flux has two pole areas ( | 02-02-2012 |
20120119697 | INDUCTIVE POWER TRANSFER APPARATUS AND ELECTRIC AUTOCYCLE CHARGER INCLUDING THE INDUCTIVE POWER TRANSFER APPARATUS - The invention provides an electric autocycle support apparatus comprising an autocycle engagement device adapted to support an autocycle, the engagement device having a coil adapted to provide a magnetic field for inductively charging an autocycle supported by the apparatus. The invention also provides an electric autocycle stand and a charging system. | 05-17-2012 |
20120217111 | ROADWAY POWERED ELECTRIC VEHICLE SYSTEM - A roadway powered electric vehicle system includes a power supply ( | 08-30-2012 |
20120319479 | POWER DEMAND MANAGEMENT IN INDUCTIVE POWER TRANSFER SYSTEMS - A method of controlling power delivered to one or more loads in an inductive power transfer (IPT) system includes varying a frequency of a current in a primary conductive path ( | 12-20-2012 |
20130229061 | INDUCTIVE POWER TRANSFER SYSTEM PRIMARY TRACK TOPOLOGIES - 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. | 09-05-2013 |
20130270921 | INDUCTIVE POWER TRANSFER APPARATUS - An IPT system magnetic flux pad includes two substantially planar coils ( | 10-17-2013 |
20130272044 | INDUCTIVE POWER TRANSFER CONTROL - An inductive power transfer (IPT) control method is disclosed for controlling the output of an IPT pick-up. The invention involves selectively shunting first and second diodes of a diode bridge to selectively rectify an AC current input for supply to a load, or recirculate the AC current to a resonant circuit coupled to the input of the controller. By controlling the proportion of each positive-negative cycle of the AC input which is rectified/recirculated, the output is regulated. Also disclosed is an IPT controller adapted to perform the method, an IPT pick-up incorporating the IPT controller, and an IPT system incorporating at least one such IPT pick-up. | 10-17-2013 |
20140292264 | Multi power sourced electric vehicle - An apparatus is disclosed for charging a battery of an electric or a hybrid vehicle. The apparatus includes first means for selectively coupling the battery to a high power electrical supply and second means for selectively coupling the battery to a lower power electrical supply, wherein the second means for coupling comprises a pickup pad electrically coupled to the battery. Power is transferred to the pickup pad from a charging pad by inductive power transfer. | 10-02-2014 |
20150008752 | Multi power sourced electric vehicle - An inductive power transfer pad for transmitting wireless power to a wireless power receiver separable from the inductive power transfer pad. The inductive power transfer pad includes a coil having at least one turn of a conductor in a first layer and a plurality of ferromagnetic slabs arranged in a second layer substantially parallel to that of the coil, the ferromagnetic slabs being arranged so as to be spaced apart from one another about the coil with their lengths extending across a longitudinal length of the coil. | 01-08-2015 |
Patent application number | Description | Published |
20090289505 | Assembly for Supplying a Consumer with Electric Power - An arrangement for supplying a load with electrical energy from a power source comprises a textile, woven floor covering ( | 11-26-2009 |
20140042821 | INDUCTIVE POWER TRANSFER APPARATUS WITH AC AND DC OUTPUT - An inductive power transfer system (IPT) pick-up comprises:
| 02-13-2014 |
20140361630 | MAGNETIC FIELD SHAPING FOR INDUCTIVE POWER TRANSFER - An IPT system magnetic flux device for generating or receiving a magnetic flux, has a magnetically permeable core and at least one coil magnetically associated with the core. A shield repels magnetic flux and is located on the opposite side of the core such that the shield includes an outer portion that extends beyond at least part of the perimeter of the core. | 12-11-2014 |
20150028849 | INDUCTIVE POWER TRANSFER SYSTEM AND METHOD - Foreign object detection apparatus for an IPT system, includes a control means adapted to detect the presence of a foreign object on or adjacent to an IPT primary pad of the system. | 01-29-2015 |
20150236513 | MULTIPLE COIL FLUX PAD - The present invention provides a magnetic flux pad for generating or receiving magnetic flux, comprising at least three coils positioned such that the windings thereof are in substantially the same plane, and a power supply or pickup controller operable to selectively energise or receive power from two or more of the coils such that a magnetic field is produced or received by at least one of a plurality of pairs of the at least three coils. In preferred embodiments, the three or more coils are substantially mutually decoupled, overlapping, and/or equidistantly spaced from one another. | 08-20-2015 |
Patent application number | Description | Published |
20120313444 | INDUCTIVELY CONTROLLED SERIES RESONANT AC POWER TRANSFER - An inductive power transfer pickup circuit has a pickup coil (L | 12-13-2012 |
20140284159 | NON-FERRITE STRUCTURES FOR INDUCTIVE POWER TRANSFER - An inductive power transfer apparatus suitable for producing a magnetic field for inductive power transfer is disclosed. The apparatus has three or more coils arranged such that when energised with a power source, magnetic fields produced by each coil augment each other on a first surface and substantially weaken each other on a second surface. The first and second surfaces have an obverse relationship to each other. Also disclosed is a roadway inductive power transfer module suitable for producing a magnetic field for inductive power transfer to a vehicle using the roadway, and an Inductive power transfer apparatus suitable for receiving a magnetic field for inductive power transfer. | 09-25-2014 |
20150035377 | VAR CONTROL FOR INDUCTIVE POWER TRANSFER SYSTEMS - Disclosed herein is an inductive power transfer (IPT) compensation circuit and method for reflecting a controlled reactance to a primary conductor at a selected operating frequency, compensating for reactive loads reflected to the primary conductor by one or more other pick-ups inductively coupled with the primary conductor in use. The compensation circuit comprises a first switch means coupled to a resonant circuit and operable to reflect a capacitive reactance to the primary conductor; a second switch means coupled to the resonant circuit and operable to reflect an inductive reactance to the primary conductor; and control means adapted to control operation of the first and second switch means to compensate for inductive and capacitive reactances, respectively, in the primary conductor. | 02-05-2015 |
20150084588 | WIRING HARNESS AND WIRELESS POWER TRANSFER SYSTEM - 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. | 03-26-2015 |
20150214738 | LOCAL DEMAND SIDE POWER MANAGEMENT FOR ELECTRIC UTILITY NETWORKS - A demand side electric power supply management system is disclosed. The system comprises an islanded power system having a point of coupling to a supply grid. The islanded power system supplies a plurality of electric loads, each of which is associated with a load controller to control the maximum power demanded by that load. A measuring means associated with the point of coupling measures the total power transfer between the grid and the islanded system, and a system controller monitors the measured power transfer relative to a set point and provides a control signal to a plurality of load controllers. Each load controller receives substantially the same control signal and determines the maximum power which the or each load associated with the load controller is allowed to draw from the islanded power system based on information contained in the control signal. | 07-30-2015 |