公开(公告)号：US20130082648A1

公开(公告)日：2013-04-04

申请号：US13612990

申请日：2012-09-13

Applicant: Koichiro KAMATA

Inventor： Koichiro KAMATA

IPC: H01F38/14 ,  H02J7/04

CPC classification number: H02J50/12 ,  H01F38/14 ,  H02J7/025 ,  H02J17/00

Abstract: A power receiving device includes a resonant coil, an electromagnetic coupling coil, a rectifier circuit, a smoothing circuit, a voltage converter circuit which converts a voltage value of DC power into another voltage value, a control circuit which obtains voltage and current values of the DC power input to the voltage converter circuit, calculates an impedance from the obtained voltage and current values, and generates a pulse width modulation signal for controlling an output voltage and an output current of the voltage converter circuit, and a load to which the output voltage and the output current of the voltage converter circuit are input. The duty ratio of the pulse width modulation signal is determined so that the impedance calculated by the control circuit becomes close to an impedance for the maximum efficiency in transferring the AC power. The power receiving device is included in a contactless power feeding system.

Abstract translation: 电力接收装置包括谐振线圈，电磁耦合线圈，整流电路，平滑电路，将直流电力值转换为另一电压值的电压转换器电路，获得电压和电流值的控制电路 直流电压输入到电压转换器电路，根据获得的电压和电流值计算阻抗，并产生用于控制电压转换器电路的输出电压和输出电流的脉冲宽度调制信号，以及输出电压 输入电压转换电路的输出电流。 确定脉冲宽度调制信号的占空比，使得由控制电路计算的阻抗变得接近用于传递AC电力的最大效率的阻抗。 电力接收装置包括在非接触供电系统中。

公开(公告)号：US20120319646A1

公开(公告)日：2012-12-20

申请号：US13490497

申请日：2012-06-07

Applicant: Koichiro KAMATA

Inventor： Koichiro KAMATA

IPC: H02J7/00

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J7/045 ,  H02J50/90

Abstract: An object is to provide a wireless power feeding system using the resonance method, which can increase power transmission efficiency. The wireless power feeding system includes a power transmission coil electrically connected to a high-frequency power supply, a power transmission resonance coil for transmitting power by electromagnetic induction with the power transmission coil, a power reception resonance coil for exciting high-frequency power by magnetic resonance, a load coil for exciting high-frequency power by electromagnetic induction with the power reception resonance coil, a load, and a variable element. The load includes a microprocessor for controlling the impedance of the load, a battery charger, and a battery. The battery charger is configured to charge the battery with the high-frequency power excited by the load coil.

Abstract translation: 本发明的目的是提供一种使用谐振方法的无线馈电系统，其可以提高电力传输效率。 无线供电系统包括电连接到高频电源的电力传输线圈，用于通过电力传输线圈通过电磁感应传输电力的电力传输谐振线圈，用于通过磁性激发高频电力的功率接收谐振线圈 谐振，用于通过电力感应与受电共振线圈，负载和可变元件激发高频功率的负载线圈。 负载包括用于控制负载的阻抗的微处理器，电池充电器和电池。 电池充电器配置为由负载线圈激发的高频电源为电池充电。

公开(公告)号：US20120223592A1

公开(公告)日：2012-09-06

申请号：US13366995

申请日：2012-02-06

Applicant: Koichiro KAMATA

Inventor： Koichiro KAMATA

IPC: H02J17/00

CPC classification number: H02J50/80 ,  H02G3/0412 ,  H02G3/22 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40

Abstract: The frequency of high-frequency voltage which is output by a variable high frequency power source included in a power transmitting device is controlled in accordance with the value of electric power received by a power receiving device. That is to say, the frequency of the high-frequency voltage is controlled in accordance with data directly relating to power supply. Thus, electric power is accurately supplied with high transmission efficiency in the power supply system.

Abstract translation: 由功率发送装置所具备的可变高频电源输出的高频电压的频率根据受电装置的电力值进行控制。 也就是说，根据与电源直接相关的数据来控制高频电压的频率。 因此，在供电系统中，以高的传输效率精确地提供电力。

公开(公告)号：US20120187771A1

公开(公告)日：2012-07-26

申请号：US13352383

申请日：2012-01-18

Applicant: Koichiro KAMATA ,  Shinya OKANO ,  Misako SATO ,  Shuhei MAEDA

Inventor： Koichiro KAMATA ,  Shinya OKANO ,  Misako SATO ,  Shuhei MAEDA

IPC: H02J17/00

CPC classification number: H03H7/38 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H03C1/36 ,  H03D1/02

Abstract: A resonant power feeding system that can provide high power transmission efficiency between a power feeding device and a power reception device without dynamically controlling the oscillation frequency in accordance with the distance between the power feeding device and the power reception device. High power transmission efficiency between the power feeding device and the power reception device is obtained by addition of a structure for adjusting the matching condition to both the power reception device and the power feeding device. Specifically, a transmission-reception circuit and a matching circuit are provided in both the power reception device and the power feeding device, and wireless signals for adjusting the matching circuit are transmitted and received through a resonant coil. Thus, the power feeding device can efficiently supply power to the power reception device without adjusting the oscillation frequency.

Abstract translation: 一种谐振馈电系统，其能够在馈电装置和受电装置之间提供高功率传输效率，而不需要根据供电装置和受电装置之间的距离动态地控制振荡频率。 通过添加用于调节与受电装置和供电装置的匹配条件的结构，可以获得供电装置和受电装置之间的高功率传输效率。 具体地，在受电装置和供电装置中设置发送接收电路和匹配电路，通过谐振线圈发送接收用于调整匹配电路的无线信号。 因此，馈电装置可以在不调整振荡频率的情况下有效地向受电装置供电。

公开(公告)号：US20120161529A1

公开(公告)日：2012-06-28

申请号：US13311701

申请日：2011-12-06

Applicant: Koichiro KAMATA ,  Misako Sato ,  Shuhei Maeda

Inventor： Koichiro KAMATA ,  Misako Sato ,  Shuhei Maeda

IPC: 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.

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。

公开(公告)号：US20120025631A1

公开(公告)日：2012-02-02

申请号：US13189862

申请日：2011-07-25

Applicant: Yutaka SHIONOIRI ,  Koichiro KAMATA ,  Misako SATO ,  Shuhei MAEDA

Inventor： Yutaka SHIONOIRI ,  Koichiro KAMATA ,  Misako SATO ,  Shuhei MAEDA

IPC: H02J17/00

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J17/00 ,  H02J50/20 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

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, without causing increases in complexity and size of devices. 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 by receiving a position and resonant frequency detection signal using a plurality of sub-carriers having different frequencies from the power receiver, 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，其对于供电用户在电力接收端更方便，而不会增加设备的复杂性和尺寸。 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通过使用具有与电力接收器不同的频率的多个子载波接收位置和谐振频率检测信号来检测电力接收器的位置和谐振频率，并且控制 根据该信息将电力信号的频率发送到电力接收器。 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。

公开(公告)号：US20110122673A1

公开(公告)日：2011-05-26

申请号：US12951899

申请日：2010-11-22

Applicant: Koichiro KAMATA ,  Yusuke SEKINE

Inventor： Koichiro KAMATA ,  Yusuke SEKINE

IPC: G11C11/34

CPC classification number: G11C16/0433 ,  G11C16/02 ,  G11C16/0483 ,  H01L27/1156 ,  H01L27/1225 ,  H01L29/7869

Abstract: A nonvolatile memory includes a memory cell including a first transistor and a second transistor. The first transistor includes a first channel, a first gate electrode, a first source electrode, and a first drain electrode. The second transistor includes a second channel made of oxide semiconductor material, a second gate electrode, a second source electrode, and a second drain electrode. One of the second source electrode and the second drain electrode is electrically connected to the first gate electrode. Data writing in the memory cell is done by raising the potential of a node between one of the second source electrode and the second drain electrode and the first gate electrode. Data erasure in the memory cell is done by irradiating the second channel with ultraviolet light and lowering the potential of the node.

Abstract translation: 非易失性存储器包括具有第一晶体管和第二晶体管的存储单元。 第一晶体管包括第一沟道，第一栅极，第一源极和第一漏极。 第二晶体管包括由氧化物半导体材料制成的第二沟道，第二栅电极，第二源电极和第二漏电极。 第二源电极和第二漏电极中的一个电连接到第一栅电极。 通过提高第二源电极和第二漏电极之间的节点与第一栅电极之间的节点的电位来进行存储单元中的数据写入。 通过用紫外线照射第二通道并降低节点的电位来完成存储单元中的数据擦除。

公开(公告)号：US20130002036A1

公开(公告)日：2013-01-03

申请号：US13531636

申请日：2012-06-25

Applicant: Koichiro KAMATA

Inventor： Koichiro KAMATA

IPC: H02J17/00

CPC classification number: H02J50/40 ,  H02J5/005 ,  H02J7/0013 ,  H02J7/025 ,  H02J7/345 ,  H02J17/00 ,  H02J50/12 ,  H02J50/80

Abstract: A contactless power supply device capable of appropriately supplying power to a plurality of power supplied devices at the same time without contact is provided. A contactless power supply device capable of supplying power without contact even when the positional flexibility of a plurality of power supplied devices is increased is provided. The contactless power supply device determines a power supply condition that power can be most appropriately supplied to a plurality of power supplied devices that need power supply in a short time. The contactless power supply device can appropriately supply power to a plurality of power supplied devices at the same time without contact by controlling the resonant capacitance of a power transmission coil in an optimized power supply condition. The positional flexibility of the plurality of power supplied devices with respect to the contactless power supply device can be increased.

Abstract translation: 提供能够同时适当地向多个供电装置供电而进行接触的非接触式电力供给装置。 提供一种即使在多个供电装置的位置灵活性增加时也能够不接触地供电的非接触式电源装置。 非接触式电源装置确定能够最短时间地供给需要电力供给的多个供电装置的电力最适当地供给的供电状态。 非接触式电源装置能够通过在优化的电力供给状态下控制输电线圈的谐振电容而同时向多个供电装置供电，而无需接触。 可以增加多个供电装置相对于非接触供电装置的位置灵活性。

公开(公告)号：US20120193994A1

公开(公告)日：2012-08-02

申请号：US13330742

申请日：2011-12-20

Applicant: Koichiro KAMATA

Inventor： Koichiro KAMATA

IPC: H01F38/14

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0081

Abstract: A power transmitting system in which power can be successfully supplied by magnetic resonance from a power transmitting device to a selected power receiving device among a plurality of power receiving devices. The power receiving device includes a variable unit which can change the self resonant frequency of a resonance coil in accordance with an invalidation signal transmitted from the power transmitting device. Thus, even in the case where the plurality of power receiving devices are provided for one power transmitting device, the self resonant frequencies of the resonance coils included in the power receiving devices which are not to be supplied with power are changed to avoid resonance with the power transmitting device. Consequently, power can be successfully and selectively supplied to the power receiving devices to be supplied with power.

Abstract translation: 一种电力传输系统，其中能够通过磁共振从多个电力接收装置中的功率发送装置向所选择的电力接收装置成功地供电。 电力接收装置包括可变单元，其可以根据从电力发送装置发送的无效信号来改变谐振线圈的自谐振频率。 因此，即使在为一个电力发送装置设置多个电力接收装置的情况下，包含在不被供电的电力接收装置中的谐振线圈的自谐振频率也被改变，以避免与 动力传动装置。 因此，可以成功地并且选择性地将电能提供给受电装置以供电。

公开(公告)号：US20120062174A1

公开(公告)日：2012-03-15

申请号：US13207474

申请日：2011-08-11

Applicant: Koichiro KAMATA

Inventor： Koichiro KAMATA

IPC: H02J7/00

CPC classification number: H02J50/05 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  H04B5/00 ,  H04B5/0012

Abstract: An electric field coupling type wireless power feed system including a power transmitting device and a power receiving device which is unlikely to be affected by a noise and which has a reduced size is provided. A capacitive coupling type wireless power feed system includes a power receiving device including a first electrode using an oxide semiconductor film, and a battery and a power transmitting device including a second electrode, wherein the battery is charged by a voltage generated based on an electric field generated between the first electrode and the second electrode. The charging of the battery may be stopped by applying a positive direct-current voltage from a charge control circuit to the first electrode.

Abstract translation: 提供了一种电场耦合型无线馈电系统，其包括不太可能受噪声影响并且具有减小的尺寸的电力传输装置和电力接收装置。 一种电容耦合型无线馈电系统，包括：电源接收装置，包括使用氧化物半导体膜的第一电极，以及包括第二电极的电池和电力传输装置，其中，所述电池通过基于电场产生的电压进行充电 在第一电极和第二电极之间产生。 可以通过将来自充电控制电路的正直流电压施加到第一电极来停止电池的充电。