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1.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.
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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.
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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.
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Patent Agency Ranking
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.
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5.发明申请公开(公告)号：US20190123593A1
公开(公告)日：2019-04-25
申请号：US16227058
申请日：2018-12-20
Inventor： Eiji TAKAHASHI , Hideaki MIYAMOTO
IPC: H02J50/40 , H02J7/02 , H02P27/06 , H02J50/12 , H02J50/80 , B25J19/00 , H01F38/14 , H02P3/18 , B25J9/12
CPC classification number: H02J50/40 , B25J9/12 , B25J19/0045 , H01F38/14 , H02J7/025 , H02J50/12 , H02J50/70 , H02J50/80 , H02P3/18 , H02P27/06
Abstract: A wireless power feeding unit includes a power transmitting module and a power receiving module. The power transmitting module includes: a first inverter circuit which is connected to a power source via a switch; a first transmission coil connected to the first inverter circuit; a second inverter circuit which is connected to the power source or another power source not via the switch; a second transmission coil which is connected to the second inverter circuit; and a power transmission control circuit which controls the first and second inverter circuits. The power receiving module includes a first reception coil opposed to the first transmission coil and a second reception coil opposed to the second transmission coil. During operation of the first and second inverter circuits, even while supply of power to the first inverter circuit is stopped, the power transmission control circuit maintains control of the second inverter circuit.
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6.发明申请公开(公告)号：US20180152056A1
公开(公告)日：2018-05-31
申请号：US15825763
申请日：2017-11-29
Inventor： Eiji TAKAHASHI , Hideaki MIYAMOTO
CPC classification number: H02J50/40 , B25J9/12 , B25J19/0045 , H01F38/14 , H02J7/025 , H02J50/12 , H02J50/80 , H02P3/18 , H02P27/06
Abstract: A wireless power feeding unit includes a power transmitting module and a power receiving module. The power transmitting module includes: a first inverter circuit which is connected to a power source via a switch; a first transmission coil connected to the first inverter circuit; a second inverter circuit which is connected to the power source or another power source not via the switch; a second transmission coil which is connected to the second inverter circuit; and a power transmission control circuit which controls the first and second inverter circuits. The power receiving module includes a first reception coil opposed to the first transmission coil and a second reception coil opposed to the second transmission coil. During operation of the first and second inverter circuits, even while supply of power to the first inverter circuit is stopped, the power transmission control circuit maintains control of the second inverter circuit.
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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.
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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.
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