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公开(公告)号：US11342797B2
公开(公告)日：2022-05-24
申请号：US17057799
申请日：2019-05-23
Applicant: Wi-Charge Ltd.
Inventor： Yoav Biderman , Ortal Alpert , Ori Refael Mor , Omer Nahmias , Lior Golan , Ran Sagi , Zohar Levin , Alexander Slepoy , Yan Rosh , Eyal Conforti
Abstract: 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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公开(公告)号：US11070298B2
公开(公告)日：2021-07-20
申请号：US16651788
申请日：2018-09-28
Applicant: Wi-Charge Ltd.
Inventor： Ortal Alpert , Lior Golan , Ori Refael Mor , Ran Sagi , Omer Nahmias , Yoram Ashush , Yoav Biderman , Zohar Mills-Levin , Yan Rosh , Eyal Conforti
Abstract: A fail-safe wireless power transmission system having a transmitter, a receiver, a receiver functionality monitor unit, a transmitter functionality monitor unit and at least two sensors. The transmitter has at least one low emission state, and at least one high emission state, the high emission states having higher emissions and more complex safety systems. The transmitter may be precluded from switching from a low emission state to any high emission states upon detection of a receiver control unit malfunction, a transmitter control unit malfunction, a likelihood of human-accessible emission from the system greater than a predetermined level, or an inconsistency between results arising from at least two of the sensors. Two different methods of such preclusion may be used simultaneously or consecutively to improve reliability. A transmitter control unit analyzes data from the sensors, and performs calculations to determine if and what type of preclusion is needed.
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公开(公告)号：US20210091603A1
公开(公告)日：2021-03-25
申请号：US16613533
申请日：2018-05-15
Applicant: Wi-Charge Ltd.
Inventor： Ortal Alpert , Ran Sagi , Ori Refael Mor , Lior Golan , Yoav Biderman , Omer Nahmias , Alexander Slepoy , Zohar Levin , Eyal Conforti , Yan Rosh
IPC: H02J50/30 , H02J50/60 , H04B10/50 , H04B10/564 , H04B10/80
Abstract: 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.
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公开(公告)号：US20180034557A1
公开(公告)日：2018-02-01
申请号：US15548175
申请日：2016-02-02
Applicant: Wi-Charge Ltd.
Inventor： Ortal Alpert , Yoni Cohen , Ori Refael Mor , Omer Nahmias , Eitan Ronen , Lior Golan
CPC classification number: H04B10/807 , H01S3/08 , H04B10/69
Abstract: A receiver for receiving an incident beam of optical power from a remote transmitter over a predefined field of view, comprising an input lens having a high durability coating that can withstand domestic handling and contamination. Such a high durability coating may reflect a non-insignificant part of the light incident thereon. Behind the lens, there is fitted a retroreflector disposed such that it reflects that part of the incident beam traversing the lens, back through the lens to the transmitter. Reflections from the front surface of the lens impinge on one or more transparent beam catchers appropriately located, and equipped with energy conversion devices, such as photovoltaic cells, to convert light from the reflections of the incident beam into electricity. Additional energy conversion devices may be located inward of the lens, to collect and convert reflections from the inner surface of the lens, of light returning from the retroreflector.
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公开(公告)号：US09866075B2
公开(公告)日：2018-01-09
申请号：US15484722
申请日：2017-04-11
Applicant: Wi-Charge Ltd.
Inventor： Alexander Slepoy , Lior Golan , Omer Nahmias , Ran Sagi , Ortal Alpert , Ori Refael Mor
CPC classification number: H02J50/30 , H01L31/0304 , H02J7/025 , H02J7/355 , H02J50/40 , H04B10/807
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20170294809A1
公开(公告)日：2017-10-12
申请号：US15484722
申请日：2017-04-11
Applicant: Wi-Charge Ltd.
Inventor： Alexander Slepoy , Lior Golan , Omer Nahmias , Ran Sagi , Ortal Alpert , Ori Refael Mor
IPC: H02J50/30 , H02J7/35 , H01L31/0304 , H02J50/40 , H02J7/02
CPC classification number: H02J50/30 , H01L31/0304 , H02J7/025 , H02J7/355 , H02J50/40 , H04B10/807
Abstract: 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.
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公开(公告)号：US09312701B1
公开(公告)日：2016-04-12
申请号：US14811260
申请日：2015-07-28
Applicant: Wi-Charge Ltd.
Inventor： Ori Refael Mor , Ortal Alpert , Alexander Slepoy , Lior Golan , Ran Sagi , Vadim Shmukler , Eitan Ronen , Omer Nahmias , Victor Vaisleib
CPC classification number: H02J50/30 , H02J5/005 , H02J7/025 , H02J17/00 , H04B10/807
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US12003118B2
公开(公告)日：2024-06-04
申请号：US17745359
申请日：2022-05-16
Applicant: Wi-Charge Ltd.
Inventor： Yoav Biderman , Ortal Alpert , Ori Refael Mor , Omer Nahmias , Lior Golan , Ran Sagi , Zohar Levin , Alexander Slepoy , Yan Rosh , Eyal Conforti
CPC classification number: H02J50/60 , H02J50/30 , H02J50/80 , H02J50/90 , H02J2310/12
Abstract: 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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公开(公告)号：US11356183B2
公开(公告)日：2022-06-07
申请号：US16084719
申请日：2017-03-14
Applicant: WI-CHARGE LTD.
Inventor： Lior Golan , Alexander Slepoy , Omer Nahmias , Ran Sagi , Ortal Alpert , Ori Refael Mor
IPC: H02J50/30 , H04B10/80 , H02J50/60 , H01S3/00 , H01S3/042 , H01S3/09 , H01S3/13 , H01S3/16 , H01S5/00 , H01S5/024 , H01S5/042 , H01S5/0683 , H01S5/34
Abstract: 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.
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公开(公告)号：US11322991B2
公开(公告)日：2022-05-03
申请号：US16613533
申请日：2018-05-15
Applicant: Wi-Charge Ltd.
Inventor： Ortal Alpert , Ran Sagi , Ori Refael Mor , Lior Golan , Yoav Biderman , Omer Nahmias , Alexander Slepoy , Zohar Levin , Eyal Conforti , Yan Rosh
Abstract: 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.
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