Direct current detecting device using saturable reactors
    1.
    发明授权
    Direct current detecting device using saturable reactors 失效
    直流电流检测装置采用饱和电抗器

    公开(公告)号:US4286211A

    公开(公告)日:1981-08-25

    申请号:US89372

    申请日:1979-10-30

    CPC分类号: G01R19/20 G01R15/185

    摘要: A direct current detecting device is disclosed in which two pairs of saturable cores are provided so as to enclose a conductor carrying a direct current to be measured. On each of the saturable cores, a bias winding, a feedback winding and an output winding are wound. First and second output circuits are provided, each connected with a pair of output windings and each including two closed current paths consisting of the output winding, a common load, a common A.C. supply source and a diode. The diodes function to allow the greater one of current flows of the two closed paths to be passed through the common load. An amplifier is connected to receive the difference between output signals of the two output circuits. The output of the amplifier is supplied to the feedback winding whereby the magnitude of the feedback current becomes a function of the magnitude of the current flowing through the conductor.

    摘要翻译: 公开了一种直流电流检测装置,其中设置两对可饱和芯,以包围承载待测量的直流电流的导体。 在每个可饱和芯上缠绕偏置绕组,反馈绕组和输出绕组。 提供第一和第二输出电路,每个输出电路都与一对输出绕组连接,每个输出绕组包括由输出绕组,公共负载,公共交流电源和二极管组成的两个闭合电流路径。 二极管用于允许两个封闭路径的较大电流流过公共负载。 连接放大器以接收两个输出电路的输出信号之间的差异。 放大器的输出被提供给反馈绕组,由此反馈电流的大小成为流过导体的电流大小的函数。

    Controller of injection molding machine
    3.
    发明授权
    Controller of injection molding machine 有权
    注塑机控制器

    公开(公告)号:US07824164B2

    公开(公告)日:2010-11-02

    申请号:US12285277

    申请日:2008-10-01

    IPC分类号: B29C45/77

    摘要: The present invention comprises a speed feedback control system for carrying out speed feedback control on the basis of a speed detected value Vd obtained by converting a position detected value Xd obtained from a screw position sensor 4, a pressure feedback control system for carrying out a pressure feedback control on the basis of a pressure detected value Pdb obtained from an injection pressure sensor 6b, and a VP switching control function portion Fc for carrying out switching from a speed control region to a pressure control region Zp when a pressure deviation Ep between a preset pressure set value Ps and the pressure detected value Pdb becomes a preset switching determination value Eps or less and carrying out the switching to the pressure control region Zp after control of a speed command value in the speed control region Zv by a predetermined control pattern Dp at this switching.

    摘要翻译: 本发明包括一个速度反馈控制系统,用于基于通过转换从螺钉位置传感器4获得的位置检测值Xd获得的速度检测值Vd来执行速度反馈控制,用于执行压力的压力反馈控制系统 基于从喷射压力传感器6b获得的压力检测值Pdb进行反馈控制,以及VP切换控制功能部Fc,用于在预设的压力偏差Ep之间进行从速度控制区域切换到压力控制区域Zp 压力设定值Ps和压力检测值Pdb成为预先设定的切换判定值Eps以下,并且通过预定的控制模式Dp在速度控制区域Zv中控制速度指令值之后进行对压力控制区域Zp的切换 这种切换。

    Thin film transistor, electro-optical device, and electronic apparatus
    4.
    发明申请
    Thin film transistor, electro-optical device, and electronic apparatus 有权
    薄膜晶体管,电光器件和电子设备

    公开(公告)号:US20080169462A1

    公开(公告)日:2008-07-17

    申请号:US11901676

    申请日:2007-09-18

    IPC分类号: H01L35/24

    摘要: A thin film transistor includes a source electrode and a drain electrode which are disposed to face each other, an organic semiconductor layer provided at least between the source electrode and the drain electrode, a plurality of gate lines extending over the source electrode, the organic semiconductor layer, and the drain electrode, and a gate insulating layer interposed between the source electrode, the drain electrode, and the organic semiconductor layer and the plurality of gate lines.

    摘要翻译: 薄膜晶体管包括彼此相对配置的源电极和漏电极,至少设置在源电极和漏电极之间的有机半导体层,在源极上延伸的多条栅极线,有机半导体 层和漏电极,以及介于源电极,漏电极和有机半导体层之间的栅极绝缘层和多个栅极线。

    Piezoelectric transformer using single crystal of LiNbO.sub.3
    6.
    发明授权
    Piezoelectric transformer using single crystal of LiNbO.sub.3 失效
    使用LINBO3单晶压电变压器

    公开(公告)号:US5229680A

    公开(公告)日:1993-07-20

    申请号:US761049

    申请日:1991-09-18

    IPC分类号: H01L41/107

    CPC分类号: H01L41/107

    摘要: A piezoelectric transformer includes a substrate of piezoelectric material, preferably a single crystal of LiNbO.sub.3. The substrate is uniformly polarized in a selected direction thereof and vibrated in a direction of the length thereof. An input voltage is applied across both sides of a portion of the substrate in a direction of the thickness thereof and thus excites a vibration by way of piezoelectric effect. Thereby another voltage is caused in the direction of the thickness of the substrate in a portion other than the portion to which the input voltage is applied, and taken out as an output voltage. As a result, it is possible to decrease the output impedance to obtain a large load current and thus fully heighten a step-up ratio of the piezoelectric transformer.

    Transport device for transporting recording medium
    7.
    发明授权
    Transport device for transporting recording medium 失效
    用于传送记录介质的传送装置

    公开(公告)号:US5133541A

    公开(公告)日:1992-07-28

    申请号:US711399

    申请日:1991-06-06

    IPC分类号: B65H29/58 G03G15/23 G06K15/16

    摘要: The present invention discloses a transport device for transporting a recording medium comprising an inlet channel formed by a first guide member, a switching channel formed by a second guide member and communicating with said inlet channel, an outlet channel formed by a third guide member and connected to the junction of the inlet channel and said switching channel, transport member located at the upstream of the junction of the inlet channel and the switching channel with respect to a recording medium transport direction for transporting the recording medium through the inlet channel into the switching channel and reverse member located at the junction of the inlet channel, the switching channel and the outlet channel for backwardly transporting the recording medium into the outlet channel as released from the transport member after the recording medium is transported into the switching channel.

    摘要翻译: 本发明公开了一种输送记录介质的输送装置,包括由第一引导构件形成的入口通道,由第二引导构件形成并与所述入口通道连通的切换通道,由第三引导构件形成的出口通道, 到入口通道和所述切换通道的接合处,输送构件相对于记录介质输送方向位于入口通道和切换通道的接合处的上游,用于将记录介质通过入口通道输送到切换通道 以及位于入口通道,开关通道和出口通道的接合处的反向构件,用于在记录介质被输送到切换通道中之后将记录介质向后传送到从输送构件释放的出口通道。

    Apparatus and method for controlling switching elements in a
PWN-controlled voltage source inverter
    8.
    发明授权
    Apparatus and method for controlling switching elements in a PWN-controlled voltage source inverter 失效
    用于控制PWN控制的电压源逆变器中的开关元件的装置和方法

    公开(公告)号:US4924373A

    公开(公告)日:1990-05-08

    申请号:US298962

    申请日:1989-01-19

    摘要: Disclosed is an apparatus and method for controlling switching elements (51-56) of a PWM-controlled value type inverter by a software program using a microcomputer (10). The control apparatus of the present invention produces a switching element control signal (an on/off signal) according to the following steps. When a control command value commanding the output of the inverter is determined, a control mode corresponding to the commanded output value is selected from among a plurality of control modes (M1-M6) previously contained in a table to determine the switching elements to which the control signal is applied and the order of controlling the switching elements. Further, on the basis of the control command value, the difference between a modulation signal and a predetermined reference value is computed for each phase to determine the timing of controlling the switching elements. The unit control period of each control mode is divided into halves, and the switching element control timing is determined in each of the halves of the unit control period. The control signal is produced on the basis of the combination of the selected control mode and the determined control timing.

    摘要翻译: 公开了一种通过使用微型计算机(10)的软件程序来控制PWM控制值型逆变器的开关元件(51-56)的装置和方法。 本发明的控制装置根据以下步骤产生开关元件控制信号(开/关信号)。 当确定指示反相器的输出的控制指令值时,从先前包含在表中的多个控制模式(M1-M6)中选择与指令输出值对应的控制模式,以确定转换元件 施加控制信号和控制开关元件的顺序。 此外,基于控制指令值,针对每个相位计算调制信号和预定基准值之间的差以确定控制开关元件的时序。 每个控制模式的单位控制周期被分成两半,并且在单位控制周期的每一半的每一个中确定开关元件控制定时。 基于所选择的控制模式和确定的控制定时的组合来产生控制信号。

    Control apparatus for maintaining traction in electric rolling stock
    9.
    发明授权
    Control apparatus for maintaining traction in electric rolling stock 失效
    用于维持电动车辆牵引力的控制装置

    公开(公告)号:US4799161A

    公开(公告)日:1989-01-17

    申请号:US894102

    申请日:1986-08-07

    摘要: The commencement of a developing period of slip is detected by the fact that a time-differential value v.sub.s of a creep velocity v.sub.s (a relative velocity between a peripheral velocity v.sub.m of a driving wheel and a vehicle velocity v.sub.t) exceeds a predetermined reference .delta..sub.1. The termination of the developing period is detected by the fact that a time-differential value v.sub.m of the peripheral velocity v.sub.m becomes equal to zero. During the developing period, a torque command Tp to a main motor controller is decreased by a re-adhesion control signal Tfa which is formed by the combination of a time-dependent component e.sub.1 and a slip-dependent component e.sub.2. After termination of the developing period, the torque command Tp is decreased with time at an appropriate time constant. According to the present invention, the arithmetic logic operation for control can be much simplified without any deterioration of a adhesion performance of an electric vehicle.

    摘要翻译: 由滑移速度vs(驱动轮的周边速度vm与车辆速度vt之间的相对速度)的时间差值vs超过预定的参考值δ1的事实来检测开始滑移的开始时段 通过周边速度vm的时间微分值vm等于零的事实来检测显影期间的终止。 在显影期间,通过由时间依赖分量e1和滑移相关分量e2的组合形成的再附着控制信号Tfa,降低了对主马达控制器的转矩指令Tp。 在显影期间结束后,转矩指令Tp以适当的时间常数随时间减小。 根据本发明,可以大大简化用于控制的算术逻辑运算,而不会降低电动车辆的附着性能。

    Power supply apparatus for linear motor
    10.
    发明授权
    Power supply apparatus for linear motor 失效
    线性电机供电装置

    公开(公告)号:US4721892A

    公开(公告)日:1988-01-26

    申请号:US11001

    申请日:1987-02-05

    摘要: Disclosed is a power supply apparatus for a linear motor transportation system having a number of discrete linear motor units serially arranged along a track to generate a moving magnetic field for driving vehicle. The apparatus comprises the linear motor units divided into a plurality of power supply systems each subdivided into a plurality of groups such that each of the power supply systems includes a series of ones of the linear motor units, the series of the linear motor units in each of the power supply systems being successively allotted to different ones of the groups; feeders provided respectively correspondingly to the groups in each of the power supply systems; feeder section switches for connecting respective one ends of the linear motor units in each of the group with corresponding ones of the feeders; a plurality of power supply devices provided respectively correspondingly to the groups in each of the power supply systems; and output side switches provided for connecting the respective outputs of the power supply device with corresponding ones of the feeders. The respective other ends of the linear motor units are connected with return path feeders and in each of the power supply systems, the series of linear motor units are successively excited by a corresponding one of the plurality of power supply devices as the vehicle runs.

    摘要翻译: 公开了一种用于线性电动机运输系统的电源装置,其具有沿轨道串联布置的多个离散线性电动机单元,以产生用于驾驶车辆的运动磁场。 该装置包括被分成多个电源系统的线性电动机单元,每个电源系统被分成多个组,使得每个电源系统包括一系列线性电动机单元,每一组线性电动机单元 的供电系统被连续分配给不同的组; 分别相应于每个电源系统中的组提供馈线; 馈线部分开关,用于连接各组中的线性电动机单元的相应一端和相应的馈线; 分别对应于每个电源系统中的组提供的多个电源装置; 以及输出侧开关,用于将电源装置的各个输出端与相应的馈线连接。 线性电动机单元的各自的另一端与返回路径馈送器连接,并且在每个电源系统中,随着车辆行驶,一系列线性电动机单元被多个电源装置中的相应一个相继激励。