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236 条记录 (耗时 0.051 秒)

    Clamp circuit for a semiconductor integrated circuit device
    24.
    发明授权
    Clamp circuit for a semiconductor integrated circuit device 有权
    半导体集成电路器件的钳位电路

    公开(公告)号：US06614282B2

    公开(公告)日：2003-09-02

    申请号：US10270808

    申请日：2002-10-14

    申请人： Hirofumi Abe ,  Hiroshi Fujii ,  Sinichi Noda ,  Hideaki Ishihara

    发明人： Hirofumi Abe ,  Hiroshi Fujii ,  Sinichi Noda ,  Hideaki Ishihara

    IPC分类号： H03K508

    CPC分类号： H03M1/1295

    摘要： A comparator, having an offset of 0.1V, compares a terminal voltage Vin1 with a clamp voltage VCL (5.1V). When an overvoltage input exceeding the VCL is entered to an input terminal, the comparator turns on a transistor Q11. The current flows across an externally provided resistor R11, the input terminal, and the transistor Q11, and flows into an output terminal of an operational amplifier. With a voltage drop at the resistor R11, the terminal voltage Vin1 starts decreasing toward an output voltage Vc of the operational amplifier.

    摘要翻译： 具有0.1V偏移的比较器将终端电压Vin1与钳位电压VCL（5.1V）进行比较。 当超过VCL的过压输入被输入到输入端时，比较器接通晶体管Q11。 电流流过外部提供的电阻器R11，输入端子和晶体管Q11，并流入运算放大器的输出端。 在电阻器R11处具有电压降，端子电压Vin1开始朝向运算放大器的输出电压Vc降低。

    Driving system of AC motor
    25.
    发明授权
    Driving system of AC motor 有权

    公开(公告)号：US06531843B2

    公开(公告)日：2003-03-11

    申请号：US09941791

    申请日：2001-08-30

    申请人： Yoshitaka Iwaji ,  Tsunehiro Endo ,  Hiroshi Fujii ,  Tatsuo Ando

    发明人： Yoshitaka Iwaji ,  Tsunehiro Endo ,  Hiroshi Fujii ,  Tatsuo Ando

    IPC分类号： H02P124

    CPC分类号： H02P6/085 ,  H02P6/18

    摘要： The present invention provides a control algorithm which instantaneously detects magnetic pole positions in the inside of a motor including polarities of the motor. A controller 1 applies a minute voltage change vhd to a voltage command on a dc axis which constitutes an estimation magnetic pole axis of the motor 3, detects electric currents Idc, Iqc of a motor 3 and discriminates the polarities of the magnetic pole axes by making use of the difference between a cycle in which ripple components of the electric currents Idc, Iqc become positive and a cycle in which the ripple components become negative or the difference between positive-side and negative-side current change rates. Further, the minute voltage change vhd with respect to the above-mentioned voltage command is generated on both of the dc axis and the qc axis rectangular thereto, and the magnetic pole positions of the motor are directly estimated based on the current ripple components on the respective axes. Without separately providing a cycle for discriminating the polarities of the magnetic poles, the cycle from the turning-on of a power source to the starting of the motor can be shortened so that the high-speed starting of the motor can be realized.

    Method of manufacturing sensor and resistor element
    26.
    发明授权
    Method of manufacturing sensor and resistor element 失效
    制造传感器和电阻元件的方法

    公开(公告)号：US06395575B1

    公开(公告)日：2002-05-28

    申请号：US09463144

    申请日：2000-01-20

    申请人： Shinji Umeda ,  Koji Nomura ,  Akihiko Ibata ,  Hiroshi Fujii ,  Takeshi Masutani

    发明人： Shinji Umeda ,  Koji Nomura ,  Akihiko Ibata ,  Hiroshi Fujii ,  Takeshi Masutani

    IPC分类号： H01L2100

    CPC分类号： G01D5/16 ,  H01L31/101 ,  H01L31/18

    摘要： A sensor in which a field effect transistor element 3 having a gate electrode 6 on its rear side is electrically connected onto a resistive element 2 having a top surface electrode and a bottom surface electrode in such a way that the gate electrode 6 and a portion of the top surface electrode of the resistive element 2 coincides, and a grounding electrode 12 on a substrate is electrically connected with the bottom surface electrode of the resistive element 2 so that they coincides.

    摘要翻译： 其中具有在其后侧具有栅极电极6的场效应晶体管元件3的传感器电连接到具有顶表面电极和底表面电极的电阻元件2上，使得栅电极6和一部分 电阻元件2的顶表面电极重合，并且衬底上的接地电极12与电阻元件2的底表面电极电连接使得它们重合。

    Semiconductor module, power converter using the same and manufacturing method thereof
    27.
    发明授权
    Semiconductor module, power converter using the same and manufacturing method thereof 有权
    半导体模块，使用该半导体模块的功率转换器及其制造方法

    公开(公告)号：US6144571A

    公开(公告)日：2000-11-07

    申请号：US506269

    申请日：2000-02-17

    申请人： Yasushi Sasaki ,  Yutaka Maeno ,  Hiroshi Fujii ,  Kinya Nakatsu ,  Toshio Ogawa ,  Akihiro Tamba ,  Kazuji Yamada

    发明人： Yasushi Sasaki ,  Yutaka Maeno ,  Hiroshi Fujii ,  Kinya Nakatsu ,  Toshio Ogawa ,  Akihiro Tamba ,  Kazuji Yamada

    IPC分类号： H02M7/04 ,  H01L25/16 ,  H02M7/48 ,  H05K1/14 ,  H03M7/00 ,  H01L23/043

    CPC分类号： H01L25/165 ,  H01L25/162 ,  H01L2224/45124 ,  H01L2224/48137 ,  H01L2924/13055 ,  H01L2924/14 ,  H01L2924/19041 ,  H05K1/144

    摘要： In order to bring a moduled power converter into less size and cost in the case of a structure having a lead-insert-case, an insulated metal circuit board and a printed circuit board, a difficulty was encountered in thinning a wiring width and an increase in pad area for each metal wire has interfered with a reduction in its size and cost.In the present invention to cope with it, a power converter is constructed by using a semiconductor module having such a structure that a metal base and lead frames are adhered to each other in a state in which an insulating adhesive sheet is interposed therebetween, a resin-molded outer package is adhered to the metal base with an adhesive or the like, and a resin sealing agent is charged into the resin-molded outer package to thereby integrally seal the resin-molded outer package and circuit parts such as semiconductor elements implemented therein, whereby a reduction in size and cost thereof is realized.

    摘要翻译： 为了在具有引线插入壳体，绝缘金属电路板和印刷电路板的结构的情况下将模块化的功率转换器带入更小的尺寸和成本，在布线宽度变薄和增加时遇到困难 在每个金属线的焊盘区域中，其尺寸和成本受到干扰。 在本发明中，通过使用具有这样的结构的半导体模块来构成功率转换器，所述半导体模块具有金属基底和引线框架彼此粘合的状态，其间插入有绝缘粘合片，树脂 模塑的外包装用粘合剂等粘合到金属基底上，树脂密封剂装入树脂模塑的外包装中，从而将树脂模塑的外包装和其中实现的半导体元件的电路部件整体密封 从而实现了尺寸和成本的降低。

    Method and apparatus for continuous rolling by reheating locally cold portions produced by clamping during flash-butt welding
    28.
    发明授权
    Method and apparatus for continuous rolling by reheating locally cold portions produced by clamping during flash-butt welding 失效
    通过在闪光对接焊接期间通过夹紧产生的局部冷部重新加热来连续轧制的方法和装置

    公开(公告)号：US6116496A

    公开(公告)日：2000-09-12

    申请号：US876652

    申请日：1997-06-16

    申请人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

    发明人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

    IPC分类号： B23D79/00 ,  B21B1/02 ,  B21B1/04 ,  B21B15/00 ,  B21B45/00 ,  B23K11/04 ,  H05B6/02 ,  B23K5/22 ,  B23K13/01 ,  B23K37/00 ,  H05B6/16

    CPC分类号： B23K11/04 ,  B21B15/0085 ,  B21B45/004 ,  B21B1/04 ,  B21B2001/022

    摘要： A method of continuous rolling comprises the steps of: forming a continuous billet 20 by joining a rear end of preceding billet 21 with a front end of succeeding billet 21 by flash-butt welding 3; removing burr on welded portions of the continuous billets 20; then rolling the continuous billet 20 in a rolling mill line 6; wherein locally cold portions produced by clamping at welding are reheated after removing the burr using a travelling induction-heating unit 5 running at a speed synchronously with a running speed of the continuous billet 20, which travelling induction-heating unit 5 is provided with induction-heating coils arranged at the same distance with that of the locally cold portions.

    摘要翻译： 连续轧制的方法包括以下步骤：通过闪光对接3将前一坯料21的后端与后一坯料21的前端连接，形成连续坯料20; 去除连续坯料20的焊接部分上的毛刺; 然后在轧机生产线6中轧制连续坯料20; 其中通过在连续坯料20的运行速度下同步运行的行进感应加热单元5去除毛刺之后，在焊接时通过夹紧而产生的局部冷部被再加热，该行进感应加热单元5设置有感应加热单元5， 加热线圈与局部冷部分的距离相同。

    Method and apparatus of continuous rolling using multiple synchronously moving welders for tanden welding
    29.
    发明授权
    Method and apparatus of continuous rolling using multiple synchronously moving welders for tanden welding 失效
    使用多台同步焊机进行连续焊接的连续轧制方法和装置

    公开(公告)号：US6041993A

    公开(公告)日：2000-03-28

    申请号：US876650

    申请日：1997-06-16

    申请人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

    发明人： Giichi Matsuo ,  Susumu Okawa ,  Hiroshi Fujii

    IPC分类号： B24B9/04 ,  B21B1/02 ,  B21B1/18 ,  B21B15/00 ,  B23K11/04 ,  B23K37/00 ,  B23K31/00 ,  B23K31/02

    CPC分类号： B21B15/0085 ,  B21B1/18 ,  Y10T29/5183

    摘要： A method for continuous rolling includes flash-butt welding to form a continuous billet by joining a rear end of a preceding billet with a front end of a succeeding billet, removing burrs from a welded portion of the joined part, and continuously rolling the joined continuous billet in a rolling mill group. The flash-butt welding step includes the use of two travelling welders arranged in series and spaced at a distance along the direction of movement of the continuous billet corresponding to the length of the billet being welded. The travelling welders synchronously move with the continuous billet, and separately and simultaneously weld the continuous billet to another billet by flash-butt welding so as to extend the length of the continuous billet.

    摘要翻译： 连续轧制方法包括通过将前一坯料的后端与后续钢坯的前端连接，从接合部的焊接部分除去毛刺，连续轧制连续的连续坯料，形成连续坯料的闪光对焊 轧机组中的钢坯。 闪光对接焊接步骤包括使用串联布置的两个移动焊接机，并且沿着连续坯料的移动方向一定距离，对应于被焊接的坯料的长度。 移动焊工与连续坯料同步移动，并通过闪光对接焊接将连续坯料分别并同时焊接到另一坯料，以延长连续坯料的长度。

    Infrared oil-concentration meter
    30.
    发明授权
    Infrared oil-concentration meter 失效
    红外油浓度计

    公开(公告)号：US5672874A

    公开(公告)日：1997-09-30

    申请号：US413633

    申请日：1995-03-30

    申请人： Hiroshi Fujii ,  Ryosuke Fukushima ,  Tatsuhide Tsutsui ,  Masahiko Ishida ,  Shuzi Takada

    发明人： Hiroshi Fujii ,  Ryosuke Fukushima ,  Tatsuhide Tsutsui ,  Masahiko Ishida ,  Shuzi Takada

    IPC分类号： G01N33/26 ,  G01N21/35 ,  G01N21/3577 ,  G01N21/59 ,  G01N33/18 ,  G01N33/28

    CPC分类号： G01N33/1833 ,  G01N21/3577

    摘要： An oil concentration meter includes a sample cell for receiving an oil sample that can be irradiated with infrared rays from a light source. A first interference filter having a design wavelength of 3.4 .mu.m is positioned before a measuring detector, while a second interference filter transmitting a band range between 1 .mu.m and 5 .mu.m is positioned in front of a reference detector. A logarithm of the ratio of the reference detector output to the measuring detector output is used for determining the oil concentration in a sample.

    摘要翻译： 油浓度计包括用于接收可以照射来自光源的红外线的油样的样品池。 设计波长为3.4μm的第一干涉滤光器位于测量检测器之前，而传输1μm和5μm之间的波段范围的第二干涉滤光器位于参考检测器的前面。 使用参考检测器输出与测量检测器输出的比率的对数来确定样品中的油浓度。