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1. 发明申请

WO2019224827A1 WIRELESS POWER SYSTEM HAVING IDENTIFIABLE RECEIVERS 审中-公开
公开(公告)号：WO2019224827A1
公开(公告)日：2019-11-28
申请号：PCT/IL2019/050587
申请日：2019-05-23
申请人： WI-CHARGE LTD
发明人： BIDERMAN, Yoav , ALPERT, Ortal , MOR, Ori Refael , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H04B10/112 , H02J50/60
摘要： A wireless power transmitter system for directing a high energy beam towards receivers fitted with identifying signs. One type of the identifying signs may have asymmetric shape properties, such that their mirror image cannot be matched to their actual shape, even after the image is rotated, tilted or otherwise geometrically manipulated. The system can thus determine whether a detected image of a sign is a true image received directly from said receiver, or is received after the imaged beam has undergone a reflection between the receiver and the transmission system. In the latter case, the system can prevent high power transmission from being directed to a location other than a real receiver, which could be a safety hazard. Other types of identifying signs may be located in or on the borders of different zones of a transmission space, to identify zones where transmission may be allowed or prohibited.

2. 发明申请

WO2020148772A1 SAFE ENCLOSURES FOR WIRELESS POWER SUPPLY 审中-公开
公开(公告)号：WO2020148772A1
公开(公告)日：2020-07-23
申请号：PCT/IL2020/050076
申请日：2020-01-17
申请人： WI-CHARGE LTD
发明人： ALPERT, Ortal , BIDERMAN, Yoav , MOR, Ori , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H02J50/30 , H04B10/11 , H04B10/80 , H02J50/40 , H02J50/60
摘要： A system for ensuring the integrity of the enclosure of a wireless power transmitter. The enclosure of the transmitter comprises a window in order to allow a high-power beam to exit the transmitter. The window is equipped with an area which reflects at least a portion of the beam, and directs the reflected beam onto a detector. Thus the system can ascertain whether the window is undamaged, since if the detector is receiving a satisfactory portion of the beam, then it is indicative of an undamaged window. This advantageously prevents dangerous beam generated damage which may be caused if the exit window of the transmitter is damaged. The laser beam is preferably circularly polarized before exiting the transmitter to prevent dangerous laser damage caused by the reflections of the maximum of the P or S polarization components, which may occur with linearly polarized beams.

3. 发明申请

WO2023084514A1 SCANNING MIRROR FOR LASER POWER TRANSMISSION SYSTEM 审中-公开
公开(公告)号：WO2023084514A1
公开(公告)日：2023-05-19
申请号：PCT/IL2022/051195
申请日：2022-11-09
申请人： WI-CHARGE LTD.
发明人： NAHMIAS, Omer , ALPERT, Ortal , SHAPIR, Ilanit , GOLAN, Lior , SLEPOY, Alexander , ROSH, Yan , MOR, Ori , ZLATKIN, Eli , SIMON, Nir
IPC分类号： H02J50/30 , H02J50/40 , H02J50/90 , H04B10/80
摘要： Systems for the aiming of a laser beam of wireless power towards the photovoltaic cell of a receiver, using an adjustable beam deflection unit, enabling accurate orientation of the mirror used to deflect the laser beam. Insufficient aiming accuracy may result in the spilling over of beam energy intended for absorption by the photovoltaic cell, into the surroundings. The criteria of accuracy and stability required of an electronically controlled beam aiming mirror must be such that the angular deviation of a beam, from the direction intended by the electronic control, is such that the level of optical power transferred into the surroundings, when a beam having the maximum power which the system can transmit is aimed at the target, does not exceed that allowed by a regulatory requirement. One common regulation limits the allowed dissipated power to the power of a class 3B laser.

4. 发明申请

WO2017179051A3 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
标题翻译：光学无线电源系统
公开(公告)号：WO2017179051A3
公开(公告)日：2017-10-19
申请号：PCT/IL2017/050438
申请日：2017-04-09
申请人： WI-CHARGE LTD.
发明人： SLEPOY, Alexander , GOLAN, Lior , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： G01N21/00 , G06M7/00 , H01J3/14 , H01S3/06 , H02M3/158 , H04B10/00
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.
摘要翻译：包括用于向接收器的光功率传输的安全特征的系统，其包括具有端反射器和增益介质的光学共振器，向增益介质供应功率的驱动器，以及控制其小信号增益，a 以及至少控制所述光束导向装置和所述驱动器的控制器。控制器通过输出命令以改变增益介质的小信号增益，光束的辐射率，由驱动器提供的功率，扫描速度或扫描光束转向设备的方向和位置，或者登记限定所述光电功率转换器的位置的扫描姿态。控制器还可以确保高整体辐射效率，并且可以警告未被目标接收器接收的发射功率。

5. 发明申请

WO2017179051A2 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
公开(公告)号：WO2017179051A2
公开(公告)日：2017-10-19
申请号：PCT/IL2017/050438
申请日：2017-04-09
申请人： WI-CHARGE LTD.
发明人： SLEPOY, Alexander , GOLAN, Lior , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

6. 发明申请

WO2017158605A1 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
公开(公告)号：WO2017158605A1
公开(公告)日：2017-09-21
申请号：PCT/IL2017/050329
申请日：2017-03-14
申请人： WI-CHARGE LTD.
发明人： GOLAN, Lior , SLEPOY, Alexander , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： H04B10/80
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

7. 发明申请

WO2019135226A1 MULTIPLE BEAM WIRELESS POWER TRANSMISSION SYSTEM 审中-公开
公开(公告)号：WO2019135226A1
公开(公告)日：2019-07-11
申请号：PCT/IL2019/050010
申请日：2019-01-02
申请人： WI-CHARGE LTD
发明人： BIDERMAN, Yoav , ALPERT, Ortal , MOR, Ori , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H01Q19/10 , H01Q21/28 , H01S5/10 , H01S5/14 , H02J50/23
摘要： A system for transmitting wireless power from multiple sources to multiple receivers, in which the safety of the system is maintained in spite of the possibility that two beams may intersect in the transmission space, thereby generating power or power density levels which exceed those at which the safety mechanisms of the system were designed to operate. The paths of the beams are known from the transmission positions and directions, and from the positions and orientations of the receivers, as measured by positioning devices on them. When an intersection, or near intersection of beams is determined, the system is triggered to reduce the safety risk by attenuating or turning off, or by diverting, one or more of the beams. In addition, since a reflected beam's path may not be readily discernable, the system can ascertain if one of the beams has undergone a reflection, by looking for displayed mirror images.

8. 发明申请

WO2018211506A1 FLEXIBLE MANAGEMENT SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
公开(公告)号：WO2018211506A1
公开(公告)日：2018-11-22
申请号：PCT/IL2018/050532
申请日：2018-05-15
申请人： WI-CHARGE LTD
发明人： ALPERT, Ortal , SAGI, Ran , MOR, Ori , GOLAN, Lior , BIDERMAN, Yoav , NAHMIAS, Omer , SLEPOY, Alexander , LEVIN, Zohar , CONFORTI, Eyal , ROSH, Yan
IPC分类号： H01S3/00 , H02J50/30 , H04B10/00 , H04B10/80
摘要： A safety supervision system for wireless power transmission, comprising a transmitter having an optical beam generator with safe states for transmitting power to receivers that convert the beam into electrical power. The system control unit stores previously known signatures categorized by predetermined parameters associated with one or more unwanted situations, stores data from sensors, compares this stored data to the signatures, and executes one or more responses based on this comparison. The system may comprise transmitter and/or receiver malfunction detection systems adapted to monitor the transmitter and receiver control units and to cause the optical beam generator to switch to a safe state upon detection of a transmitter or receiver control unit malfunction, and may further comprise a hazard detection system preventing human exposure to beam intensity above a predefined safe level.

9. 发明申请

WO2017009854A1 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
标题翻译：光纤无线供电系统
公开(公告)号：WO2017009854A1
公开(公告)日：2017-01-19
申请号：PCT/IL2016/050776
申请日：2016-07-14
申请人： WI-CHARGE LTD.
发明人： MOR, Ori Refael , ALPERT, Ortal , SLEPOY, Alexander , GOLAN, Lior , SAGI, Ran , SHMUKLER, Vadim , RONEN, Eitan , NAHMIAS, Omer , VAISLEIB, Victor
IPC分类号： H04B10/00
CPC分类号： H02J50/30 , H02J5/005 , H02J7/025 , H02J17/00 , H04B10/807
摘要： A system for optical wireless power transmission to a power receiving apparatus generally situated in a mobile electronic device. The transmitter has an optical resonator with end reflectors and a gain medium positioned between them, such that an optical beam is generated. The frequency of the beam is selected such that it is absorbed by almost all transparent organic materials in general use. A beam steering unit on the transmitter can direct the beam in any of a plurality of directions, and the beam is absorbed on the receiver by means of an optical-to-electrical power converter, through a low reflection surface. The band gap of this power converter is selected to be smaller than that of the gain medium. The receiver has a voltage converter including an inductor, an energy storage device and a switch. A beam steerer controller ensures that the beam impinges on the receiver.
摘要翻译：一种用于向通常位于移动电子设备中的电力接收设备的光无线电力传输的系统。发射机具有带有端反射器的光学谐振器和位于它们之间的增益介质，从而产生光束。选择光束的频率使其被几乎所有通常使用的透明有机材料吸收。发射机上的光束转向单元可以在多个方向中的任何一个方向上引导光束，并且通过光 - 电功率转换器通过低反射表面将光束吸收在接收器上。该功率转换器的带隙被选择为小于增益介质的带隙。接收器具有电压转换器，其包括电感器，能量存储装置和开关。光束转向器控制器确保光束照射在接收器上。

10. 发明公开

EP4246770A2 WIRELESS POWER SYSTEM HAVING IDENTIFIABLE RECEIVERS 审中-实审
公开(公告)号：EP4246770A2
公开(公告)日：2023-09-20
申请号：EP23190192.7
申请日：2019-05-23
申请人： WI-CHARGE LTD
发明人： BIDERMAN, Yoav , ALPERT, Ortal , MOR, Ori Refael , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H02J50/60
摘要： A wireless power transmitter system for directing a high energy beam towards receivers fitted with identifying signs. One type of the identifying signs may have asymmetric shape properties, such that their mirror image cannot be matched to their actual shape, even after the image is rotated, tilted or otherwise geometrically manipulated. The system can thus determine whether a detected image of a sign is a true image received directly from said receiver, or is received after the imaged beam has undergone a reflection between the receiver and the transmission system. In the latter case, the system can prevent high power transmission from being directed to a location other than a real receiver, which could be a safety hazard. Other types of identifying signs may be located in or on the borders of different zones of a transmission space, to identify zones where transmission may be allowed or prohibited.

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