公开(公告)号：US10020678B1

公开(公告)日：2018-07-10

申请号：US14861397

申请日：2015-09-22

Applicant: ENERGOUS CORPORATION

Inventor： Michael A. Leabman

IPC: H02J17/00

CPC classification number: H02J50/40 ,  H02J7/025 ,  H02J50/20 ,  H02J50/80 ,  H02J50/90

Abstract: Systems and methods to generate and transmit power waves are disclosed herein. An example method includes: transmitting, by one or more transmitters, one or more power waves to provide power. A first antenna of a first antenna array of one or more antenna arrays of a respective transmitter of the one or more transmitters is located at a distance from a second antenna of a second antenna array of the one or more antenna arrays such that power waves transmitted by the first antenna and the second antenna are directed to form a pocket of energy to provide power to the targeted electronic device. The respective transmitter determines the distance between the first and second antennas: based upon one or more parameters received in a communication signal from the targeted electronic device, and to allow a desired mutual coupling effect between the first and second antennas.

公开(公告)号：US10014105B2

公开(公告)日：2018-07-03

申请号：US14661675

申请日：2015-03-18

Applicant: TDK CORPORATION

Inventor： Noritaka Chiyo ,  Tetsuya Nishiyama ,  Yasuhiro Terasaki ,  Mitsunari Suzuki

IPC: H01F27/42 ,  H01F38/14 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70 ,  H02J5/00 ,  H02J17/00 ,  H02J7/00 ,  H01F27/36

CPC classification number: H01F38/14 ,  H01F27/367 ,  H02J5/005 ,  H02J7/0042 ,  H02J17/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70

Abstract: A coil unit includes a non-magnetic conductive plate which is disposed along an axis of a coil, and a magnetic body. The magnetic body includes a first portion which is positioned in an outer side than an outline of one side of the conductive plate in the axis direction of the coil, and a second portion which is positioned in an outer side than an outline of the other side of the conductive plate in the axis direction of the coil. When viewing from the axis direction of the coil, the first and second portions are positioned on a side of the conductive plate where is opposite to a side which faces the coil.

公开(公告)号：US10008888B2

公开(公告)日：2018-06-26

申请号：US14335822

申请日：2014-07-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： WooSub Youm ,  Sung Q Lee ,  Gunn Hwang

IPC: H02J7/02 ,  H02J7/00 ,  H02J50/80 ,  H02J7/04 ,  H02J17/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/15

CPC classification number: H02J50/80 ,  H02J7/025 ,  H02J7/042 ,  H02J17/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/15 ,  H02J2007/0037

Abstract: Provided is a wireless power transmission system. The wireless power transmission system includes a power supply unit generating amplified power; a wireless power transmission unit receiving and converting the amplified power into wireless power; a wireless power reception unit receiving and converting the wireless power into charging power; and a charging unit receiving the charging power, wherein the charging unit includes a battery to store the charging power and the power supply unit includes a power detection unit identifies the charged state of the battery based on the amplified voltage and amplified current of the amplified power.

公开(公告)号：US10008883B2

公开(公告)日：2018-06-26

申请号：US14897522

申请日：2014-06-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Osamu Ohashi ,  Tsuyoshi Nishio ,  Noriaki Asaoka ,  Masayoshi Koizumi

IPC: H02J7/00 ,  H02J50/12 ,  H02J7/02 ,  H02J17/00 ,  B60L11/18 ,  H02J50/80 ,  H02J5/00

CPC classification number: H02J50/12 ,  B60L53/12 ,  B60L53/60 ,  B60L2270/147 ,  H02J7/025 ,  H02J50/80 ,  H02J50/90 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/92 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163

Abstract: Power feed device (100) supplies power to storage battery (152) mounted on vehicle (150), through power receiving unit (154) of vehicle (150). Power supply unit (104) performs preliminary supply to power receiving unit (154) while sequentially changing a frequency, and performs main supply with power larger than in the preliminary supply. Power supply-side controller (103) acquires frequency characteristics associated with power supply coil (104a), and specifies a resonance frequency based on the acquired frequency characteristics. Power supply-side controller (103) determines whether or not to supply power to power reception coil (154a) based on a frequency difference between resonance frequencies.

公开(公告)号：US10008874B2

公开(公告)日：2018-06-26

申请号：US14780009

申请日：2013-12-27

Applicant: INTEL CORPORATION

Inventor： Evan R. Green ,  Adam D. Rea

IPC: H02J7/00 ,  H01F27/42 ,  H04B1/38 ,  H02J7/02 ,  H02J17/00 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80

CPC classification number: H02J7/025 ,  H02J7/04 ,  H02J17/00 ,  H02J50/12 ,  H02J50/80

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of wireless power transfer. For example, an apparatus may include a controller to control a Wireless Power Transmitter (WPT) to transmit a sequence of probes during a detection period, to detect a Wireless Power Receiver (WPR) based on a detected induced load on the WPT during transmission of probe of the sequence of probes, and, upon detection of the WPR, to control the WPT to transmit a wireless charging signal to the WPR.

公开(公告)号：US09997959B2

公开(公告)日：2018-06-12

申请号：US13742992

申请日：2013-01-16

Applicant: Samsung Electronics Co., LTD.

Inventor： Ki Young Kim ,  Eun Seok Park ,  Young Ho Ryu ,  Sang Wook Kwon ,  Nam Yun Kim ,  Dong Zo Kim ,  Yun Kwon Park ,  Chang Wook Yoon ,  Jin Sung Choi ,  Young Tack Hong

IPC: H02J50/80 ,  H02J50/50 ,  H02J17/00 ,  H02J5/00 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/50 ,  H02J50/80

Abstract: A wireless power transmission system and a method for increasing a coupling efficiency by adjusting a resonant frequency are provided. A device of the wireless power transmission system includes a resonator configured to transmit a wireless power, and a communication unit configured to receive information from another device. The device further includes a controller configured to determine a power transmission efficiency based on the information, and adjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency.

公开(公告)号：US09991747B2

公开(公告)日：2018-06-05

申请号：US14838284

申请日：2015-08-27

Applicant: QUALCOMM Incorporated

Inventor： Stanley Slavko Toncich ,  William Henry Von Novak, III

IPC: H02J50/12 ,  H02J50/90 ,  G06K7/00 ,  G06K7/10 ,  G06K19/07 ,  H01Q1/38 ,  H01Q7/00 ,  H02J5/00 ,  H02J7/02 ,  H04B5/00 ,  H04B5/02 ,  H02J17/00 ,  H01Q1/22 ,  H01F38/14

CPC classification number: H02J50/12 ,  G06K7/0008 ,  G06K7/10178 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/0723 ,  H01F38/14 ,  H01Q1/2225 ,  H01Q1/38 ,  H01Q7/00 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/90 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/02 ,  Y10T307/406

Abstract: Exemplary embodiments are directed to wireless power transfer including generating an electromagnetic field at a resonant frequency of a transmitter to create a coupling-mode region within a near field of the transmitter during a synchronization portion of a time-multiplexed recurring period. During a power transmission portion of the recurring period, the electromagnetic field will continue to be generated when there is a receiver within the coupling-mode region, or the electromagnetic field will be disabled when there are no receivers within the coupling-mode region. Different segments of the power transmission portion are allocated to different receivers. The transmitter issues serial commands to the receivers by on/off keying the electromagnetic field. The receivers issue serial replies by changing the amount of power consumed from the electromagnetic field between two different states. The serial commands and serial replies are used to determine the number of receivers, their power requirements, and the allocation of segments.

公开(公告)号：US09991048B2

公开(公告)日：2018-06-05

申请号：US14748639

申请日：2015-06-24

Applicant: Board of Trustees of The University of Alabama

Inventor： Jaber A. Abu Qahouq

IPC: H01F38/14 ,  H02J7/02 ,  H02J17/00 ,  H04B5/00 ,  H02J50/90 ,  H02J50/40 ,  H02J50/12 ,  H02J50/20 ,  H02J50/10

CPC classification number: H01F38/14 ,  H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02J50/20 ,  H02J50/40 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0087

Abstract: Systems and methods for transmitting and receiving wireless power are disclosed. A transmitter may include one or more magnetic inductive coil(s) configured to transmit power, a plurality of drive loops, one or more switches connected to the plurality of drive loops, and a controller configured to connect or disconnect the drive loops using the one or more switches. A receiver may include one or more magnetic inductive coil(s) configured to receive power, a plurality of load loops, one or more switches connected to the plurality of load loops, and a controller configured to connect or disconnect the load loops using the one or more switches. The wireless power system may include inductive coils and RF antennas that are adaptively controlled and configured. A transmitter and/or a receiver may adaptively rotate, adjust orientation and/or location.

公开(公告)号：US09985464B2

公开(公告)日：2018-05-29

申请号：US15477332

申请日：2017-04-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeshi Osada

IPC: H02J7/00 ,  H02J7/02 ,  H02J7/04 ,  H02J50/12 ,  H02J50/80 ,  H02J50/40 ,  H02J50/23 ,  H01M10/04 ,  H01M10/44 ,  H02J17/00 ,  H01F38/14 ,  H03D9/00 ,  H04B5/00 ,  H02J50/20 ,  H02J7/35

CPC classification number: H02J50/23 ,  H01F38/14 ,  H01M10/0436 ,  H01M10/44 ,  H02J7/025 ,  H02J7/041 ,  H02J7/042 ,  H02J7/045 ,  H02J7/35 ,  H02J17/00 ,  H02J50/12 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H03D9/00 ,  H04B5/0037 ,  Y02B40/90 ,  Y02E60/12 ,  Y10T307/625

Abstract: An object is to provide a power storage device provided with a battery that is a power storage means, for safe and accurate supply of electric power in a short period of time for drive power supply voltage without checking remaining capacity of the battery or changing batteries with deterioration over time of the battery for drive power supply voltage. The power storage device is provided with a battery that is a power storage means as a power supply for supplying electric power and a counter circuit for counting charging time of the power storage means. An electromagnetic wave with electric field intensity, magnetic field intensity, and power flux density per unit time which are transmitted from a power feeder are controlled, and the power storage means is efficiently charged using the electromagnetic wave in a short period of time.

公开(公告)号：US09985157B2

公开(公告)日：2018-05-29

申请号：US14723602

申请日：2015-05-28

Applicant: Deutsches Zentrum fuer Luft— und Raumfahrt e.V.

Inventor： Adolf Giesen ,  Stephan Anders ,  Hans-Albert Eckel

IPC: H02J50/30 ,  H01L31/054 ,  H02J50/90 ,  G02B5/00 ,  G02B27/14 ,  H04B10/80 ,  H02J17/00 ,  H01L31/056

CPC classification number: H01L31/0547 ,  G02B5/003 ,  G02B27/145 ,  H01L31/056 ,  H02J17/00 ,  H02J50/30 ,  H02J50/90 ,  H04B10/807 ,  Y02E10/52

Abstract: An optical energy transmission system having an energy-emitting unit is provided. The energy-emitting unit has a laser radiation source for generating an energy-transmitting laser beam and an aiming device for aligning the energy-transmitting laser beam relative to an energy-receiving unit which includes an optical/electrical converter, which converts the energy of the energy-transmitting laser beam into electrical energy. The converter has at least one converter element having a plurality of surfaces which reflect the energy-transmitting laser beam and which are arranged relative to one another such that the impinging energy-transmitting laser beam is deflected by one of the reflective surfaces to another one of the reflective surfaces. At least some of the reflective surfaces are formed by a conversion unit which reflects one part of the impinging laser beam and absorbs the other part thereof in a photovoltaic element, and in the process converts the optical energy into electrical energy.