公开(公告)号：US09065341B2

公开(公告)日：2015-06-23

申请号：US13980911

申请日：2011-11-24

申请人： Satoshi Murakami ,  Masaki Yamada ,  Ryota Kondo ,  Takashi Kaneyama ,  Kazutoshi Awane

发明人： Satoshi Murakami ,  Masaki Yamada ,  Ryota Kondo ,  Takashi Kaneyama ,  Kazutoshi Awane

IPC分类号： H02M3/335

CPC分类号： H02M3/335 ,  H02M3/33507

摘要： A DC-DC converter in which a primary side and a secondary side are insulated by a transformer, includes: two diodes having anodes respectively connected to both ends of a secondary winding of the transformer and cathodes connected to each other; a series circuit composed of a resistor and a capacitor connected in series; and a snubber circuit formed by connecting the cathodes of the diodes to the connection point between the resistor and the capacitor. Surge voltage caused on the secondary side of the transformer is clamped at the voltage of the capacitor, and surge energy stored in the capacitor is regenerated to a load via the resistor. Thus, surge voltage caused on the secondary side of the transformer is suppressed with a simple configuration, and effective use of surge energy is ensured.

摘要翻译： 其中初级侧和次级侧由变压器绝缘的DC-DC转换器包括：具有分别连接到变压器的次级绕组的两端的阳极和彼此连接的阴极的两个二极管; 由电阻器和串联连接的电容器组成的串联电路; 以及通过将二极管的阴极连接到电阻器和电容器之间的连接点而形成的缓冲电路。 在变压器的二次侧产生的浪涌电压被钳位在电容器的电压上，并且存储在电容器中的浪涌能量通过电阻再生成负载。 因此，通过简单的结构来抑制在变压器的次级侧产生的浪涌电压，并且确保有效地利用浪涌能量。

公开(公告)号：US20150015181A1

公开(公告)日：2015-01-15

申请号：US14364186

申请日：2012-12-13

申请人： Ryota Kondo ,  Masaki Yamada ,  Yusuke Higaki

发明人： Ryota Kondo ,  Masaki Yamada ,  Yusuke Higaki

IPC分类号： H02M3/335 ,  H02J7/00

CPC分类号： H02M3/33584 ,  H02J7/0054 ,  H02J2007/0059 ,  H02M3/3353 ,  H02M2001/0058 ,  Y02B70/1491

摘要： In a DC/DC converter for bidirectional power transmission, a first switching circuit is connected between a first winding of a high-frequency transformer and a DC power supply, and a second switching circuit is connected between a second winding and a battery. In the first and second switching circuits, capacitors are connected in parallel to semiconductor switching devices, and first and second reactors are connected on AC input/output lines. Upon power transmission, the switching circuit on the primary side of the high-frequency transformer performs zero voltage switching, and the switching circuit on the secondary side performs a step-up operation by using the reactor.

摘要翻译： 在用于双向功率传输的DC / DC转换器中，第一开关电路连接在高频变压器的第一绕组和直流电源之间，第二开关电路连接在第二绕组和电池之间。 在第一和第二开关电路中，电容器并联连接到半导体开关器件，第一和第二电抗器连接在AC输入/输出线上。 在电力传输时，高频变压器初级侧的开关电路进行零电压切换，次级侧的开关电路通过使用电抗器进行升压动作。

公开(公告)号：US20140362624A1

公开(公告)日：2014-12-11

申请号：US14372572

申请日：2012-01-17

申请人： Masaki Yamada

发明人： Masaki Yamada

IPC分类号： H01L29/82 ,  H01L29/861 ,  H02M7/06 ,  H01L43/02

CPC分类号： H01L29/82 ,  H01L27/22 ,  H01L29/861 ,  H01L43/02 ,  H01L43/08 ,  H02M7/06

摘要： Provided is a spin torque diode element having an excellent frequency characteristic and an excellent rectification efficiency. The spin torque diode element according to the present invention includes first and second magnetization free layers and a magnetization fixed layer that is shared by the magnetization free layers and has a configuration that a current can be flown to the first and second magnetization free layers via the magnetization fixed layer.

摘要翻译： 提供了具有优异的频率特性和优异的整流效率的自旋转矩二极管元件。 根据本发明的自旋转矩二极管元件包括第一和第二磁化自由层和由磁化自由层共享的磁化固定层，并且具有通过经由该磁化自由层能够流过第一和第二无磁化层的结构 磁化固定层。

公开(公告)号：US08730868B2

公开(公告)日：2014-05-20

申请号：US13401086

申请日：2012-02-21

申请人： Masaki Yamada ,  Yuji Ogata ,  Nobuyuki Muranaka

发明人： Masaki Yamada ,  Yuji Ogata ,  Nobuyuki Muranaka

IPC分类号： H04B7/212 ,  H04W56/00

CPC分类号： H04W56/0015 ,  H04J3/0641 ,  H04J3/0661 ,  H04J3/0667 ,  H04J3/14 ,  H04L43/0858 ,  H04L43/106 ,  H04W56/00 ,  H04W56/001

摘要： In order to select a synchronization signal higher in accuracy, thereby increasing the accuracy of the time synchronization, it is provided a network node for transferring data in a network, comprising: a network interface having a plurality of ports; a transfer control module; a time synchronizing module; a fluctuation measurement module; and a clock. The time synchronization module uses a received time synchronization packet to synchronize the clock. The fluctuation measurement module determines an accuracy of a time contained in the received time synchronization packet based on a result of comparison between the time contained in the received time synchronization packet and a time of the clock.

摘要翻译： 为了精确地选择更高的同步信号，从而提高了时间同步的精度，提供了一种用于在网络中传送数据的网络节点，包括：具有多个端口的网络接口; 传输控制模块; 时间同步模块; 波动测量模块; 和时钟。 时间同步模块使用接收到的时间同步数据包来同步时钟。 波动测量模块基于接收的时间同步分组中包含的时间与时钟的时间之间的比较结果，确定接收的时间同步分组中包含的时间的精度。

公开(公告)号：US20140111145A1

公开(公告)日：2014-04-24

申请号：US14123900

申请日：2012-07-23

申请人： Kenro Mitsuda ,  Daigo Takemura ,  Masaki Yamada

发明人： Kenro Mitsuda ,  Daigo Takemura ,  Masaki Yamada

IPC分类号： H02J7/00

CPC分类号： B60W20/13 ,  B60L11/14 ,  B60L11/1811 ,  B60W10/26 ,  B60W20/00 ,  B60W20/14 ,  B60W30/18127 ,  H01M10/052 ,  H01M10/44 ,  H01M2220/20 ,  H02J7/007 ,  H02J7/06 ,  H02J7/14 ,  Y02E60/122 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7011 ,  Y02T10/7022 ,  Y02T10/7072 ,  Y02T10/7077 ,  Y02T90/127 ,  Y02T90/14

摘要： A charging control apparatus for a secondary battery, including a current control apparatus for, upon charging for a secondary battery from an electric generator regenerating kinetic energy as regenerative energy, performing control so as to suppress charging current for the secondary battery at a start of charging to a predetermined suppression rate with respect to charging current at the start of charging in the case that the charging current is not suppressed, and decrease the suppression rate as time elapses.

摘要翻译： 一种用于二次电池的充电控制装置，包括电流控制装置，用于在从产生再生能量的发电机作为再生能量对二次电池充电时进行控制，以在充电开始时抑制二次电池的充电电流 在充电电流不被抑制的情况下相对于充电开始时的充电电流达到规定的抑制率，并且随着时间流逝而降低抑制率。

公开(公告)号：US20140097805A1

公开(公告)日：2014-04-10

申请号：US14116518

申请日：2012-02-15

申请人： Yuuya Tanaka ,  Masaki Yamada ,  Shigeki Harada ,  Hiroshi Okuda ,  Nobuhiro Kihara

发明人： Yuuya Tanaka ,  Masaki Yamada ,  Shigeki Harada ,  Hiroshi Okuda ,  Nobuhiro Kihara

IPC分类号： H02P9/02

CPC分类号： H02P9/02 ,  H02J3/00 ,  H02P9/107 ,  H02P9/48

摘要： An electric power supply system includes: an AC generator having a drooping characteristic; a rectification section for converting AC output of the AC generator to DC; a load having an electric storage device supplied with power from the AC generator; and a control section provided between the rectification section and the load. The control section controls the AC generator so that the AC generator operates at predetermined voltage lower than output voltage corresponding to the maximum power operation point of the AC generator.

摘要翻译： 一种电力供应系统，包括：具有下垂特性的交流发电机; 整流部分，用于将AC发电机的AC输出转换为DC; 具有从交流发电机供电的蓄电装置的负载; 以及设置在整流部和负载之间的控制部。 控制部分控制交流发电机，使得交流发电机在低于对应于交流发电机的最大功率运行点的输出电压的预定电压下工作。

公开(公告)号：US08659924B2

公开(公告)日：2014-02-25

申请号：US13128584

申请日：2009-04-08

申请人： Masaki Yamada ,  Akihiko Iwata

发明人： Masaki Yamada ,  Akihiko Iwata

IPC分类号： H02M1/42 ,  H02M7/217

CPC分类号： H02M1/4225 ,  H02M1/12 ,  H02M7/217 ,  Y02B70/126 ,  Y10T307/675

摘要： In a power conversion apparatus that converts AC power to DC power, an inverter circuit including one or more single-phase inverters connected in series with each other is connected in series at the subsequent stage of a rectification of an AC input. At the subsequent stage of the inverter circuit, a smoothing capacitor connected via a rectification diode, and a short-circuiting switch for bypassing the smoothing capacitor are provided. The short-circuiting switch is subjected to ON/OFF control by PWM control such that a voltage of the DC voltage supply of the inverter circuit follows a target voltage. The inverter circuit is subjected to output control such that a DC voltage of the smoothing capacitor follows a target voltage and an input power factor is improved.

摘要翻译： 在将AC电力转换为DC电力的电力转换装置中，在AC输入的整流的后续阶段，串联连接包括串联连接的一个以上的单相逆变器的逆变电路。 在逆变器电路的后续阶段，提供通过整流二极管连接的平滑电容器和用于旁路平滑电容器的短路开关。 短路开关通过PWM控制进行ON / OFF控制，使得逆变器电路的直流电压源的电压跟随目标电压。 对逆变器电路进行输出控制，使得平滑电容器的直流电压跟随目标电压，并且提高输入功率因数。

公开(公告)号：US20140028092A1

公开(公告)日：2014-01-30

申请号：US14111314

申请日：2012-02-06

申请人： Yoshihiro Takeshima ,  Masaki Yamada ,  Takuto Yano

发明人： Yoshihiro Takeshima ,  Masaki Yamada ,  Takuto Yano

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  B60L11/1812 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  H02M3/3376 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T90/127 ,  Y02T90/14

摘要： In a DC/DC converter that performs zero-voltage switching, capacitors are connected respectively in parallel to first and second MOSFETs that are included in an inverter unit in the primary-side of a transformer, and an inductor is connected to an AC output line. In a range of a current being more than a predetermined value, a control circuit controls the inverter unit using a PWM control with a fixed dead time, and in a light load range where the current is equal to or less than the predetermined value, the control unit changes the control to a PFM control and decreases a frequency so that the dead time becomes longer as the current decreases, to thereby keep a duty ratio without change.

摘要翻译： 在执行零电压切换的DC / DC转换器中，电容器分别与变压器初级侧的逆变器单元中包含的第一和第二MOSFET并联，并且电感器连接到AC输出线 。 在电流大于预定值的范围内，控制电路使用具有固定死区时间的PWM控制来控制逆变器单元，并且在电流等于或小于预定值的轻负载范围内， 控制单元将控制改变为PFM控制并且降低频率，使得死区时间随着电流减小而变长，从而保持占空比而不改变。

公开(公告)号：US20130301304A1

公开(公告)日：2013-11-14

申请号：US13980911

申请日：2011-11-24

申请人： Satoshi Murakami ,  Masaki Yamada ,  Ryota Kondo ,  Takashi Kaneyama ,  Kazutoshi Awane

发明人： Satoshi Murakami ,  Masaki Yamada ,  Ryota Kondo ,  Takashi Kaneyama ,  Kazutoshi Awane

IPC分类号： H02M3/335

CPC分类号： H02M3/335 ,  H02M3/33507

摘要： A DC-DC converter in which a primary side and a secondary side are insulated by a transformer, includes: two diodes having anodes respectively connected to both ends of a secondary winding of the transformer and cathodes connected to each other; a series circuit composed of a resistor and a capacitor connected in series; and a snubber circuit formed by connecting the cathodes of the diodes to the connection point between the resistor and the capacitor. Surge voltage caused on the secondary side of the transformer is clamped at the voltage of the capacitor, and surge energy stored in the capacitor is regenerated to a load via the resistor. Thus, surge voltage caused on the secondary side of the transformer is suppressed with a simple configuration, and effective use of surge energy is ensured.

摘要翻译： 其中初级侧和次级侧由变压器绝缘的DC-DC转换器包括：具有分别连接到变压器的次级绕组的两端的阳极和彼此连接的阴极的两个二极管; 由电阻器和串联连接的电容器组成的串联电路; 以及通过将二极管的阴极连接到电阻器和电容器之间的连接点而形成的缓冲电路。 在变压器的二次侧产生的浪涌电压被钳位在电容器的电压上，并且存储在电容器中的浪涌能量通过电阻再生成负载。 因此，通过简单的结构来抑制在变压器的次级侧产生的浪涌电压，并且确保有效地利用浪涌能量。

公开(公告)号：US20120133008A1

公开(公告)日：2012-05-31

申请号：US13389016

申请日：2010-08-04

申请人： Masaki Yamada ,  Hiromasa Takahashi

发明人： Masaki Yamada ,  Hiromasa Takahashi

IPC分类号： H01L29/82

CPC分类号： G11C11/16 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/098 ,  G01R33/1284 ,  G11B5/3909 ,  G11B5/3912 ,  G11B2005/3996 ,  G11C11/161 ,  G11C11/1673 ,  G11C11/1675 ,  H01L27/22 ,  H01L43/08

摘要： Provided are a spin-injection element having high spin-injection efficiency, and a magnetic field sensor and a magnetic recording memory employing the element. The element comprises a barrier layer, a magnetic conductive layer, and a spin accumulation portion comprised of non-magnetic conductive material. In the element, a first spin accumulation layer (103) and the barrier layer (102) have respectively a body-centered cubic lattice structure. Due to this, the first spin accumulation layer (103) and the barrier layer (102) come into contact with each other through a boundary face with improved crystalline symmetry. Thereby, lattice matching is improved and scattering of the tunnel electrons in the Δ1 band is prevented, resulting in improvement in the spin polarizability. Further, the characteristics of the device employing the spin injection element are improved.

摘要翻译： 提供了具有高自旋注入效率的自旋注入元件，以及采用该元件的磁场传感器和磁记录存储器。 元件包括阻挡层，磁导电层和由非磁性导电材料构成的自旋聚集部分。 在元件中，第一自旋累积层（103）和阻挡层（102）分别具有体心立方晶格结构。 由此，第一自旋累积层（103）和阻挡层（102）通过具有改善的结晶对称性的边界面相互接触。 由此，晶格匹配得到改善，并且防止了＆Dgr.1波段中的隧道电子的散射，从而提高了自旋极化率。 此外，提高了使用自旋注入元件的装置的特性。