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    POWER FEEDING DEVICE, POWER RECEIVING DEVICE, AND WIRELESS POWER FEED SYSTEM
    11.
    发明申请
    POWER FEEDING DEVICE, POWER RECEIVING DEVICE, AND WIRELESS POWER FEED SYSTEM 有权

    公开(公告)号：US20220385108A1

    公开(公告)日：2022-12-01

    申请号：US17887305

    申请日：2022-08-12

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Koichiro KAMATA ,  Misako SATO ,  Shuhei MAEDA

    IPC: H02J50/12 ,  H02J5/00 ,  H02J50/90 ,  H02J50/50 ,  H02J50/40

    Abstract: A wireless power feed system with high transfer efficiency of electric power is disclosed. The wireless power feed system includes a power feeding device and a power receiving device, wherein the power feeding device includes a first electromagnetic coupling coil that is connected to an AC power source via a directional coupler; a first resonant coil; a switch connected to the opposite ends of the first resonant coil; a control circuit which conducts switching on/off of the switch based on a parameter of an amplitude of a reflective wave detected by the directional coupler; and an analog-digital converter provided between the first electromagnetic coupling coil and the control circuit; and the power receiving device includes a second resonant coil; and a second electromagnetic coupling coil, and wherein the first electromagnetic coupling coil is provided between the first resonant coil and the second resonant coil.

    STORAGE DEVICE, SEMICONDUCTOR DEVICE, ELECTRONIC COMPONENT, AND ELECTRONIC DEVICE
    12.
    发明申请
    STORAGE DEVICE, SEMICONDUCTOR DEVICE, ELECTRONIC COMPONENT, AND ELECTRONIC DEVICE 有权

    公开(公告)号：US20210081023A1

    公开(公告)日：2021-03-18

    申请号：US17104460

    申请日：2020-11-25

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Shuhei MAEDA ,  Shuhei NAGATSUKA ,  Tatsuya ONUKI ,  Kiyoshi KATO

    IPC: G06F1/3234 ,  G11C16/30 ,  G11C14/00 ,  G11C5/14

    Abstract: To reduce the area of a memory cell having a backup function. A storage device includes a cell array, and a row circuit and a column circuit that drive the cell array. The cell array includes a first power supply line, a second power supply line, a word line, a pair of bit lines, a memory cell, and a backup circuit. The cell array is located in a power domain where power gating can be performed. In the power gating sequence of the cell array, data in the memory cell is backed up to the backup circuit. The backup circuit is stacked over a region where the memory cell is formed. A plurality of wiring layers are provided between the backup circuit and the memory cell. The first power supply line, the second power supply line, the word line, and the pair of bit lines are located in different wiring layers.

    STORAGE DEVICE, SEMICONDUCTOR DEVICE, ELECTRONIC COMPONENT, AND ELECTRONIC DEVICE
    13.
    发明申请
    STORAGE DEVICE, SEMICONDUCTOR DEVICE, ELECTRONIC COMPONENT, AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20190377401A1

    公开(公告)日：2019-12-12

    申请号：US16476642

    申请日：2018-01-09

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Shuhei MAEDA ,  Shuhei NAGATSUKA ,  Tatsuya ONUKI ,  Kiyoshi KATO

    IPC: G06F1/3234 ,  G11C5/14 ,  G11C16/30 ,  G11C14/00

    Abstract: To reduce the area of a memory cell having a backup function. A storage device includes a cell array, and a row circuit and a column circuit that drive the cell array. The cell array includes a first power supply line, a second power supply line, a word line, a pair of bit lines, a memory cell, and a backup circuit. The cell array is located in a power domain where power gating can be performed. In the power gating sequence of the cell array, data in the memory cell is backed up to the backup circuit. The backup circuit is stacked over a region where the memory cell is formed. A plurality of wiring layers are provided between the backup circuit and the memory cell. The first power supply line, the second power supply line, the word line, and the pair of bit lines are located in different wiring layers.

    POWER FEEDING DEVICE, POWER RECEIVING DEVICE, AND WIRELESS POWER FEED SYSTEM
    17.
    发明申请
    POWER FEEDING DEVICE, POWER RECEIVING DEVICE, AND WIRELESS POWER FEED SYSTEM 审中-公开
    电力馈电装置，电力接收装置和无线电力馈电系统

    公开(公告)号：US20150270723A1

    公开(公告)日：2015-09-24

    申请号：US14731776

    申请日：2015-06-05

    Applicant: Semiconductor Energy Laboratory Co., LTD.

    Inventor： Koichiro KAMATA ,  Misako SATO ,  Shuhei MAEDA

    IPC: H02J5/00 ,  H02J17/00

    CPC classification number: H02J5/005 ,  H01F38/00 ,  H02J5/00 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

    Abstract: A wireless power feed system with high transfer efficiency of electric power is disclosed. The wireless power feed system includes a power feeding device and a power receiving device, wherein the power feeding device includes a first electromagnetic coupling coil that is connected to an AC power source via a directional coupler; a first resonant coil; a switch connected to the opposite ends of the first resonant coil; a control circuit which conducts switching on/off of the switch based on a parameter of an amplitude of a reflective wave detected by the directional coupler; and an analog-digital converter provided between the first electromagnetic coupling coil and the control circuit; and the power receiving device includes a second resonant coil; and a second electromagnetic coupling coil, and wherein the first electromagnetic coupling coil is provided between the first resonant coil and the second resonant coil.

    Abstract translation: 公开了一种具有高电力传输效率的无线馈电系统。 无线馈电系统包括馈电装置和电力接收装置，其中馈电装置包括经由定向耦合器连接到AC电源的第一电磁耦合线圈; 第一谐振线圈; 连接到所述第一谐振线圈的相对端的开关; 控制电路，其基于由所述定向耦合器检测到的反射波的振幅的参数来进行所述开关的接通/断开; 以及设置在所述第一电磁耦合线圈和所述控制电路之间的模拟数字转换器; 并且所述受电装置包括第二谐振线圈; 和第二电磁耦合线圈，并且其中所述第一电磁耦合线圈设置在所述第一谐振线圈和所述第二谐振线圈之间。

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