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公开(公告)号：US09583576B2
公开(公告)日：2017-02-28
申请号：US14148885
申请日：2014-01-07
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Hideki Uochi , Koichiro Kamata
IPC: G11C7/00 , H01L29/24 , G11C11/404 , G11C13/00
CPC classification number: G11C13/0007 , G11C11/404 , G11C13/003 , G11C13/004 , G11C13/0069 , G11C2013/0045 , G11C2013/0078 , G11C2213/53 , H01L27/115 , H01L29/16 , H01L29/24 , H01L29/247 , H01L29/49
Abstract: Disclosed is a semiconductor device having a memory cell which comprises a transistor having a control gate and a storage gate. The storage gate comprises an oxide semiconductor and is able to be a conductor and an insulator depending on the potential of the storage gate and the potential of the control gate. Data is written by setting the potential of the control gate to allow the storage gate to be a conductor, supplying a potential of data to be stored to the storage gate, and setting the potential of the control gate to allow the storage gate to be an insulator. Data is read by supplying a potential for reading to a read signal line connected to one of a source and a drain of the transistor and detecting the change in potential of a bit line connected to the other of the source and the drain.
Abstract translation: 公开了一种具有存储单元的半导体器件，该存储单元包括具有控制栅极和存储栅极的晶体管。 存储栅极包括氧化物半导体，并且能够根据存储栅极的电位和控制栅极的电位而成为导体和绝缘体。 通过设置控制栅极的电位来允许存储门为导体，向存储门提供要存储的数据的电位，以及设置控制门的电位以允许存储门为 绝缘子。 通过向连接到晶体管的源极和漏极中的一个的读取信号线提供读取电位并检测与源极和漏极中的另一个连接的位线的电位变化来读取数据。
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公开(公告)号：US09477249B2
公开(公告)日：2016-10-25
申请号：US13711961
申请日：2012-12-12
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kei Takahashi , Koichiro Kamata , Misako Miwa , Shuhei Maeda
CPC classification number: H02M3/156 , G05F3/08 , H02J5/005 , H02J7/00 , H02J7/025 , H02J50/12 , H02M2001/0022
Abstract: A circuit capable of keeping input impedance constant is provided. Further, a circuit which can contribute to improvement in power feeding efficiency in power feeding by a magnetic resonance method is provided. A voltage (a former voltage) proportional to a direct-current voltage input to a DC-DC converter from the outside and a voltage (a latter voltage) proportional to a current input from the outside are detected, and the ratio of the former voltage and the latter voltage are held constant. Accordingly, input impedance can be kept constant. Further, impedance conversion is performed in the DC-DC converter. Thus, even when the battery in which power feeding is performed exists on an output side of the DC-DC converter, input impedance can be kept constant. Consequently, power can be supplied to a power receiving device including the DC-DC converter and the battery with high power feeding efficiency by a magnetic resonance method.
Abstract translation: 提供能够保持输入阻抗恒定的电路。 此外，提供了可以通过磁共振方法有助于提高馈电的馈电效率的电路。 检测与从外部输入到DC-DC转换器的直流电压成比例的电压（前一个电压）和与从外部输入的电流成比例的电压（后一个电压），并且前一个电压 并且后一电压保持恒定。 因此，输入阻抗可以保持恒定。 此外，在DC-DC转换器中进行阻抗转换。 因此，即使在DC-DC转换器的输出侧存在进行供电的电池，也可以保持输入阻抗恒定。 因此，可以通过磁共振方式向具有高功率馈送效率的DC-DC转换器和电池的电力接收装置供电。
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公开(公告)号：US10726913B2
公开(公告)日：2020-07-28
申请号：US15462956
申请日：2017-03-20
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Hideki Uochi , Koichiro Kamata
IPC: G11C7/00 , G11C13/00 , G11C11/404 , H01L29/24 , H01L27/115 , H01L29/16 , H01L29/49
Abstract: Disclosed is a semiconductor device having a memory cell which comprises a transistor having a control gate and a storage gate. The storage gate comprises an oxide semiconductor and is able to be a conductor and an insulator depending on the potential of the storage gate and the potential of the control gate. Data is written by setting the potential of the control gate to allow the storage gate to be a conductor, supplying a potential of data to be stored to the storage gate, and setting the potential of the control gate to allow the storage gate to be an insulator. Data is read by supplying a potential for reading to a read signal line connected to one of a source and a drain of the transistor and detecting the change in potential of a bit line connected to the other of the source and the drain.
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34.发明授权公开(公告)号：US10374463B2
公开(公告)日：2019-08-06
申请号：US15850321
申请日：2017-12-21
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Koichiro Kamata
IPC: H02J50/12 , H02J50/90 , H02J50/80 , H02J7/02 , H02J50/40 , H01F38/14 , H02J5/00 , H02J17/00 , H01F27/00
Abstract: A power feeding device utilizing an electromagnetic resonance coupling method and a contactless power feeding system can be provided. A coupling coefficient of electromagnetic induction coupling in the power feeding device and/or the inside of a power receiving device is optimized to improve electric power transmission efficiency of a resonance frequency regardless of positions of the power feeding device and the power receiving device. Provided is a power feeding device or a contactless power feeding system in which an S11 parameter which is a reflection component of electric power output from a high-frequency power source of the power feeding device is monitored, and one or both of positions of a transmission coil and a first resonant coil in the power feeding device and positions of a reception coil and a second resonant coil in a power receiving device are changed to adjust a coupling coefficient of electromagnetic induction coupling.
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公开(公告)号：US10340739B2
公开(公告)日：2019-07-02
申请号：US15355278
申请日：2016-11-18
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Koichiro Kamata
Abstract: A novel power receiving device and a novel power transmission device are provided. Power feeding and communication are performed using a magnetic resonance method. Specifically, in one embodiment of the present invention, power feeding is performed by generating a second high-frequency voltage based on a first high-frequency voltage induced in a resonant coil and communication is performed by modulating amplitude of the first high-frequency voltage induced in the resonant coil. Thus, it is possible to perform communication and power feeding based on data obtained by the communication in pseudo-parallel.
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Patent Agency Ranking
公开(公告)号：US09912170B2
公开(公告)日：2018-03-06
申请号：US14731776
申请日：2015-06-05
Applicant: Semiconductor Energy Laboratory Co., LTD.
Inventor： Koichiro Kamata , Misako Sato , Shuhei Maeda
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.
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公开(公告)号：US09633722B2
公开(公告)日：2017-04-25
申请号：US15284662
申请日：2016-10-04
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Hideki Uochi , Koichiro Kamata
IPC: G11C7/00 , G11C13/00 , H01L27/115 , H01L29/16 , H01L29/49
CPC classification number: G11C13/0007 , G11C11/404 , G11C13/003 , G11C13/004 , G11C13/0069 , G11C2013/0045 , G11C2013/0078 , G11C2213/53 , H01L27/115 , H01L29/16 , H01L29/24 , H01L29/247 , H01L29/49
Abstract: Disclosed is a semiconductor device having a memory cell which comprises a transistor having a control gate and a storage gate. The storage gate comprises an oxide semiconductor and is able to be a conductor and an insulator depending on the potential of the storage gate and the potential of the control gate. Data is written by setting the potential of the control gate to allow the storage gate to be a conductor, supplying a potential of data to be stored to the storage gate, and setting the potential of the control gate to allow the storage gate to be an insulator. Data is read by supplying a potential for reading to a read signal line connected to one of a source and a drain of the transistor and detecting the change in potential of a bit line connected to the other of the source and the drain.
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公开(公告)号：US09472974B2
公开(公告)日：2016-10-18
申请号：US14481435
申请日：2014-09-09
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Yutaka Shionoiri , Koichiro Kamata , Misako Sato , Shuhei Maeda
CPC classification number: H02J50/12 , H02J7/025 , H02J50/20 , H02J50/40 , H02J50/80 , H02J50/90 , H04B5/0037 , H04B5/0093
Abstract: An object is to provide a power feeding system and a power feeding method which are more convenient for a power feeding user at the power receiving end. An object is to provide a power feeding system and a power feeding method which also allow a power feeding provider (a company) which feeds power (at the power transmitting end) to supply power without waste. A power feeding device which wirelessly supplies power to a power receiver detects the position and the resonant frequency of the power receiver to be supplied with power, and controls the frequency of a power signal to be transmitted to the power receiver on the basis of the information. An efficient power feeding service can be offered by transmitting a power signal to the power receiver at an optimum frequency for high power transmission efficiency.
Abstract translation: 本发明的目的是提供一种供电系统和馈电方法，其对于电力接收端的馈电用户更为方便。 本发明的目的是提供一种馈电系统和馈电方法，其还允许馈电供应商（在发电端发电）供电而不浪费电力。 向功率接收器无线供电的供电装置检测供电电源的位置和谐振频率，并根据信息控制发送到电力接收器的电力信号的频率 。 通过以最佳频率向功率接收器发送功率信号以实现高功率传输效率，可以提供有效的馈电服务。
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公开(公告)号：US09391674B2
公开(公告)日：2016-07-12
申请号：US13864303
申请日：2013-04-17
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Misako Miwa , Koichiro Kamata , Yutaka Shionoiri , Shuhei Maeda
CPC classification number: H04B5/0037 , H04B5/0087
Abstract: To provide a power feeding system and the like with which charging can be performed without a decrease in the power supply efficiency. To provide a power feeding system and the like with which can offer a power feeding service which is efficient to both a power feeding user and a power feeding provider. The power transmission state in each of power transmitting portions is monitored, the power transmitting portion having the highest power transmission efficiency is selected based on positional advantage, and the power transmitting resonance coil included in the selected power transmitting portion is kept at a first resonance frequency, whereby power transmission continues. The resonance frequency of the power transmitting resonance coil included in the non-selected power transmitting portion (the number of the non-selected power transmitting portions may be plural) is set to a second resonance frequency, whereby power transmission is stopped.
Abstract translation: 为了提供能够进行充电而不降低电力供给效率的供电系统等。 为了提供能够提供对供电用户和供电提供者都有效的供电服务的供电系统等。 监视每个电力传输部分中的电力传输状态，基于位置优势选择具有最高功率传输效率的电力传输部分，并且包括在所选择的电力发送部分中的电力发送谐振线圈保持在第一谐振频率 ，从而继续传输电力。 包括在未选择的动力传递部中的动力传递共振线圈（未选择的动力传递部的数量可以是多个）的共振频率被设定为第二共振频率，从而停止动力传递。
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公开(公告)号：US09246357B2
公开(公告)日：2016-01-26
申请号：US13705317
申请日：2012-12-05
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Koichiro Kamata
Abstract: A contactless power feeding system includes a power transmitting device and a power receiving device. The power transmitting device includes a first AC power source configured to generate an AC power with a first frequency, a second AC power source configured to generate an AC power with a second frequency which is different from the first frequency, a first electromagnetic induction coil, and a first resonant coil. The power receiving device includes a second resonant coil, a second electromagnetic induction coil, and a power storage unit. Power is wirelessly supplied to the power storage unit at the second frequency by a magnetic resonance phenomenon which occurs between the first resonant coil and the second resonant coil.
Abstract translation: 非接触供电系统包括电力传输装置和电力接收装置。 电力传输装置包括：第一AC电源，其被配置为产生具有第一频率的AC电力;第二AC电源，被配置为产生具有与第一频率不同的第二频率的AC电力;第一电磁感应线圈， 和第一谐振线圈。 电力接收装置包括第二谐振线圈，第二电磁感应线圈和电力存储单元。 通过发生在第一谐振线圈和第二谐振线圈之间的磁共振现象，以第二频率将功率无线地提供给蓄电单元。
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