-
1.发明申请公开(公告)号：US20170288412A1
公开(公告)日：2017-10-05
申请号：US15628772
申请日：2017-06-21
Inventor： Hiroshi YAMAMOTO , Kenichi ASANUMA , Tsutomu SAKATA , Hiroshi KANNO
CPC classification number: H02J50/12 , G01V3/10 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/60 , H02J50/70
Abstract: A power transmission device includes an inverter using a frequency f11 lower than a frequency f0 between a first resonator and a second resonator or a frequency f12 higher than the frequency f0 to generate a first power; an oscillator using a frequency f10 lower than a frequency fr between the first resonator and the second resonator or a frequency f20 higher than the frequency fr to generate a second power; and a power transmission control circuitry setting a foreign object detection period between first and second transmission periods, using the frequency f11 or frequency f12 in the first transmission period, using the frequency f10 or frequency f20 in the foreign object detection period, and if it is determined that a substance is present in the foreign object detection period, transmitting power in the second transmission period at a frequency different from the frequency used in the first transmission period.
-
公开(公告)号：US20220224159A1
公开(公告)日：2022-07-14
申请号：US17606194
申请日：2020-04-17
Inventor： Masato MATSUMOTO , Eiji TAKAHASHI , Hideaki MIYAMOTO , Tsutomu SAKATA
Abstract: A wireless power and data transmission apparatus includes an inner module and an outer module. The inner module includes: an annular-shaped first antenna disposed around an axis; and an annular-shaped first communication electrode disposed around the axis, the first communication electrode being at a different position from that of the first antenna regarding a direction along the axis. The outer module includes: an annular-shaped second antenna disposed around the axis, the second antenna performing power transmission or power reception with the first antenna via magnetic field coupling or electric field coupling; and an annular-shaped second communication electrode disposed around the axis, the second communication electrode being at a different position from that of the second antenna regarding the direction along the axis, and the second antenna performing communications with the first communication electrode via electric field coupling.
-
公开(公告)号：US20170092420A1
公开(公告)日：2017-03-30
申请号：US15374316
申请日：2016-12-09
Inventor： Kenichi ASANUMA , Atsushi YAMAMOTO , Tsutomu SAKATA , Akio HIDAKA , Toshiaki KIKUI
Abstract: A contactless connector apparatus is provided with a first coil closely opposed to a second coil so as to be electromagnetically coupled thereto. The first coil includes: an inner transmitter coil wound around an axis passing through its center; and an outer transmitter coil wound around the axis and outside the inner coil. One end of the outer transmitter coil is connected to one end of the inner transmitter coil such that, when a current flows through the transmitter coils, a direction of a loop current generated around the axis by a current flowing through the inner transmitter coil is opposite to that of a loop current generated around the axis by a current flowing through the outer transmitter coil. A self-inductance of the outer transmitter coil is larger than that of the inner transmitter coil.
-
4.发明申请公开(公告)号：US20180205266A1
公开(公告)日：2018-07-19
申请号：US15865975
申请日：2018-01-09
Inventor： Hideaki MIYAMOTO , Satoru KIKUCHI , Tsutomu SAKATA , Eiji TAKAHASHI , Hiroshi KANNO
Abstract: A power transmitter wirelessly transmits electric power to a power receiver that includes a reception antenna. The power transmitter includes: an inverter circuit; a transmission antenna which sends out the AC power having been output from the inverter circuit; and a control circuit which, based on measurement values of voltage and current to be input to the inverter circuit, determines a value of a control parameter defining an output voltage from the inverter circuit and controls the inverter circuit by using the determined value of the control parameter. When at least one of the measurement values of voltage and current to be input to the inverter circuit changes, the control circuit changes the value of the control parameter based on the measurement values of voltage and current so that a voltage to be output from the power receiving circuit is maintained within a predetermined range.
-
5.发明申请WIRELESS POWER TRANSMITTER APPARATUS HAVING POWER TRANSMITTER APPARATUS AND POWER RECEPTION APPARATUS SUPPLIED WITH ELECTRIC POWER ENERGY VIA SPACE 有权具有发电机装置和功率接收装置的无线电力发送装置通过空间提供电力能量公开(公告)号：US20160079951A1
公开(公告)日：2016-03-17
申请号：US14784395
申请日：2014-04-09
Inventor： Hideo OOSUMI , Hiroshi KANNO , Tsutomu SAKATA
Abstract: A power transmitter apparatus of a wireless power transmitter apparatus transmits electric power from the power transmitter apparatus to a power reception apparatus by electromagnetically coupling a power transmitter apparatus resonance coil with a power reception apparatus resonance coil. The power transmitter apparatus includes a control signal detector portion that generates a control signal based on a voltage change of a voltage across both terminals of the power transmitter apparatus resonance coil and transmits the control signal; and a switching circuit that resonates the power transmitter apparatus resonance coil on the basis of the control signal.
Abstract translation: 无线功率发送装置的电力发送装置通过电力发送装置的共振线圈与受电装置的共振线圈电磁耦合，将电力从电力发送装置发送到受电装置。 电力发送装置包括：控制信号检测部，根据电力发送装置共鸣线圈的两端的电压的电压变化生成控制信号，发送控制信号; 以及基于控制信号使电力发送装置谐振线圈共振的开关电路。
-
Patent Agency Ranking
公开(公告)号：US20220149660A1
公开(公告)日：2022-05-12
申请号：US17433744
申请日：2020-02-26
Inventor： Hideaki MIYAMOTO , Tsutomu SAKATA , Minoru OKADA , Takeshi HIGASHINO , Quang Thang DUONG , Shudai KAWAI
Abstract: The operation of a wireless power transmission system is to be stabilized. A wireless power supply unit includes a power transmitting module and a power receiving module. The power transmitting module includes a transmission coil to send out AC power. The power receiving module includes: a reception coil to receive from the transmission coil at least a portion of the AC power; and a compensation circuit connected to the reception coil, the compensation circuit including at least one compensation element to counteract at least a part of a leakage reactance or an excitation reactance of a coil pair including the transmission coil and the reception coil.
-
公开(公告)号：US20210159736A1
公开(公告)日：2021-05-27
申请号：US17041891
申请日：2019-03-26
Inventor： Hideaki MIYAMOTO , Tsutomu SAKATA , Masato MATSUMOTO
Abstract: An object is to improve the communication quality in a system for wirelessly transmitting electric power and data. A transmission module is used as a power transmitting module or a power receiving module in a wireless power data transmission device for wirelessly transferring electric power and data between the power transmitting module and the power receiving module. The transmission module includes: a coil for transmitting or receiving electric power through magnetic field coupling; a communication electrode for transmitting or receiving signals through electric field coupling; a first conductive shield that is located between the coil and the communication electrode; and a second conductive shield that is located between the coil and the first conductive shield.
-
公开(公告)号：US20190089202A1
公开(公告)日：2019-03-21
申请号：US16198824
申请日：2018-11-22
Inventor： Eiji TAKAHASHI , Tsutomu SAKATA , Satoru KIKUCHI , Hiroshi KANNO
CPC classification number: H02J50/12 , B60L1/00 , B60L53/12 , B60L2210/30 , B60L2210/40 , H02J7/025 , H02J50/10 , H02J50/20 , H02J50/80 , H02M7/537 , Y02T10/7005 , Y02T10/7072 , Y02T10/7241 , Y02T90/122 , Y02T90/127 , Y02T90/14
Abstract: A power receiving device includes a power receiving antenna that receives AC power from a power transmitting antenna, a rectifier circuit that converts the AC power into DC power, a detection circuit that detects the DC power, a load driven by the DC power, a battery that charges the DC power, a switching circuit that provides i) connection and disconnection between the rectifier circuit and the load and ii) connection and disconnection between the load and the battery, and a control circuit that controls the power receiving device. The control circuit controls the switching circuit to disconnect the rectifier circuit from the load and connect the load to the battery if the DC power is less than or equal to a power threshold value, and drive the load by the DC power charged in the battery.
-
公开(公告)号：US20240039331A1
公开(公告)日：2024-02-01
申请号：US18255976
申请日：2020-12-09
Inventor： Hideaki MIYAMOTO , Eiji TAKAHASHI , Tsutomu SAKATA
CPC classification number: H02J50/005 , H02J50/70 , H02J50/10 , H02J50/90 , H01F38/14 , H01F27/36 , B60L53/12
Abstract: A wireless power supply unit includes: a power transmitting coil; and a power receiving coil that wirelessly receives electric power from the power transmitting coil. One of the power transmitting coil and the power receiving coil is shaped so that, during use, a central portion thereof is located beyond an outer peripheral portion thereof, as viewed from another one of the power transmitting coil and the power receiving coil.
-
公开(公告)号：US20220149668A1
公开(公告)日：2022-05-12
申请号：US17434037
申请日：2019-12-16
Inventor： Masato MATSUMOTO , Tsutomu SAKATA , Hideaki MIYAMOTO
Abstract: In a system for wirelessly transmitting electric power and data, communication quality is improved. A transfer module is for use as a power transmitting module or a power receiving module in a wireless power/data transfer apparatus that wirelessly transmits electric power and data between a power transmitting module and a power receiving module. The transfer module includes: an antenna that performs power transmission or power reception via magnetic field coupling or electric field coupling; a differential transmission line pair to perform transmission or reception via electric field coupling; and a shielding part being located between the antenna and the differential transmission line pair to reduce electromagnetic interference between the antenna and the differential transmission line pair.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.016 seconds)
