Converter circuit having control means with capability to short-circuit converter output
    1.
    发明授权
    Converter circuit having control means with capability to short-circuit converter output 有权
    转换器电路具有控制装置,具有短路转换器输出的能力

    公开(公告)号:US06320772B1

    公开(公告)日:2001-11-20

    申请号:US09573824

    申请日:2000-05-18

    IPC分类号: H02M542

    摘要: A converter circuit has a reactor connectable to an AC power supply. It further has a PWM converter circuit connected to the reactor, the PWM converter circuit including a high speed diode, a rectifier diode and a switching element connected in parallel to the rectifier diode. The converter circuit further has an input current detector for detecting an input current of the PWM converter circuit, a DC voltage level detector for detecting an output voltage of the PWM converter circuit, a voltage polarity detector connected to the AC power supply, and a control device. The control device measures a variation period of the output voltage measured by the voltage level detector to judge a power supply frequency. It then controls the PWM converter circuit based on a power supply frequency judgement result, a detection result from the voltage level detector, an input current detected by the input current detector, and an output voltage detected by the DC voltage detector.

    摘要翻译: A转换器电路具有可连接到AC电源的电抗器。 它还具有连接到电抗器的PWM转换器电路,PWM转换器电路包括与整流二极管并联连接的高速二极管,整流二极管和开关元件。 转换器电路还具有用于检测PWM转换电路的输入电流的输入电流检测器,用于检测PWM转换电路的输出电压的直流电压电平检测器,与交流电源连接的电压极性检测器,以及控制电路 设备。 控制装置测量由电压电平检测器测量的输出电压的变化周期,以判断电源频率。 然后,根据电源频率判断结果,电压电平检测器的检测结果,输入电流检测器检测到的输入电流以及由直流电压检测器检测的输出电压来控制PWM转换电路。

    Motor control apparatus
    2.
    发明授权
    Motor control apparatus 有权
    电机控制装置

    公开(公告)号:US06984948B2

    公开(公告)日:2006-01-10

    申请号:US10734752

    申请日:2003-12-10

    IPC分类号: H02P6/18

    摘要: In a motor control apparatus of the present invention, a control section which receives an input voltage to an inverter circuit, a motor current flowing to a brushless motor and a motor current command value indicating the value of a current required to flow to the inverter circuit, and controls the inverter circuit by maintaining a phase of the voltage applied to the brushless motor when the value of the input voltage to the inverter circuit is smaller than the value of a voltage required to be applied to the brushless motor.

    摘要翻译: 在本发明的电动机控制装置中,接收逆变器电路的输入电压的控制部,流向无刷电动机的电动机电流以及指示流向逆变器电路所需的电流值的电动机电流指令值 并且当逆变器电路的输入电压的值小于施加到无刷电动机的电压的值时,通过保持施加到无刷电动机的电压的相位来控制逆变器电路。

    Power supply apparatus
    3.
    发明授权
    Power supply apparatus 有权
    电源设备

    公开(公告)号:US06215287B1

    公开(公告)日:2001-04-10

    申请号:US09571893

    申请日:2000-05-16

    IPC分类号: G05F100

    摘要: The present invention provides a power supply apparatus which can suppress a raising and hunting of output (DC voltage) to a load which is light. The power supply apparatus comprises an AC-to-DC converter for supplying a load with a DC voltage, and a switching operation controller for correcting a power factor and controlling a switching element so that an output or a DC voltage of the AC-to-DC converter becomes a predetermined target value. The switching operation controller has a low-pass filter for smoothening the DC voltage with a variable cut off frequency. By varying the cut-off frequency of the low-pass filter, it is possible to recognize a rising of the DC voltage to suppress and stabilize a boost and hunting of the DC voltage in a light load state.

    摘要翻译: 本发明提供一种能够抑制对轻负载的输出(DC电压)的升高和捕获的电源装置。 电源装置包括用于向负载提供DC电压的AC-DC转换器,以及用于校正功率因数并控制开关元件的开关操作控制器,使得AC-DC转换器的输出或DC电压 DC转换器成为预定的目标值。 开关操作控制器具有用于使可变截止频率平滑DC电压的低通滤波器。 通过改变低通滤波器的截止频率,可以在轻负载状态下识别直流电压的上升以抑制和稳定直流电压的升压和振荡。

    Converter circuit and motor driving apparatus
    4.
    发明授权
    Converter circuit and motor driving apparatus 失效
    转换电路和电机驱动装置

    公开(公告)号:US07646165B2

    公开(公告)日:2010-01-12

    申请号:US11892281

    申请日:2007-08-21

    IPC分类号: H02P27/04

    CPC分类号: H02M5/458

    摘要: A converter circuit for converting an output voltage from an AC power supply includes a rectifier circuit for rectifying the output voltage of the AC power supply; first and second capacitors connected in series, for smoothing the output of the rectifier circuit; and a switch circuit for switching the connections between the respective capacitors and the AC power supply so that the output voltage of the AC power supply is applied to each of the respective capacitors at a cycle that is shorter than the cycle of the AC power supply.

    摘要翻译: 用于转换来自AC电源的输出电压的A转换器电路包括:整流电路,用于整流交流电源的输出电压; 串联连接的第一和第二电容器,用于平滑整流器电路的输出; 以及用于切换各个电容器和AC电源之间的连接的开关电路,使得以比AC电源的周期短的周期将AC电源的输出电压施加到每个相应的电容器。

    Converter circuit and motor driving apparatus
    5.
    发明申请
    Converter circuit and motor driving apparatus 失效
    转换电路和电机驱动装置

    公开(公告)号:US20080002443A1

    公开(公告)日:2008-01-03

    申请号:US11892281

    申请日:2007-08-21

    IPC分类号: H02M7/06

    CPC分类号: H02M5/458

    摘要: A converter circuit for converting an output voltage from an AC power supply includes a rectifier circuit for rectifying the output voltage of the AC power supply; first and second capacitors connected in series, for smoothing the output of the rectifier circuit; and a switch circuit for switching the connections between the respective capacitors and the AC power supply so that the output voltage of the AC power supply is applied to each of the respective capacitors at a cycle that is shorter than the cycle of the AC power supply.

    摘要翻译: 用于转换来自AC电源的输出电压的A转换器电路包括:整流电路,用于整流交流电源的输出电压; 串联连接的第一和第二电容器,用于平滑整流器电路的输出; 以及用于切换各个电容器和AC电源之间的连接的开关电路,使得以比AC电源的周期更短的周期将AC电源的输出电压施加到每个相应的电容器。

    Converter circuit and motor driving apparatus
    6.
    发明授权
    Converter circuit and motor driving apparatus 失效
    转换电路和电机驱动装置

    公开(公告)号:US07274579B2

    公开(公告)日:2007-09-25

    申请号:US10936704

    申请日:2004-09-09

    IPC分类号: H02M7/02 H02M5/40

    CPC分类号: H02M5/458

    摘要: A converter circuit for converting an output voltage from an AC power supply includes a rectifier circuit for rectifying the output voltage of the AC power supply; first and second capacitors connected in series, for smoothing the output of the rectifier circuit; and a switch circuit for switching the connections between the respective capacitors and the AC power supply so that the output voltage of the AC power supply is applied to each of the respective capacitors at a cycle that is shorter than the cycle of the AC power supply.

    摘要翻译: 用于转换来自AC电源的输出电压的A转换器电路包括:整流电路,用于整流交流电源的输出电压; 串联连接的第一和第二电容器,用于平滑整流器电路的输出; 以及用于切换各个电容器和AC电源之间的连接的开关电路,使得以比AC电源的周期短的周期将AC电源的输出电压施加到每个相应的电容器。

    Converter circuit and motor driving apparatus
    7.
    发明申请
    Converter circuit and motor driving apparatus 失效
    转换电路和电机驱动装置

    公开(公告)号:US20050057210A1

    公开(公告)日:2005-03-17

    申请号:US10936704

    申请日:2004-09-09

    CPC分类号: H02M5/458

    摘要: A converter circuit for converting an output voltage from an AC power supply is provided with a rectifier circuit for rectifying the output voltage of the AC power supply; first and second capacitors connected in series, for smoothing the output of the rectifier circuit; and a switch circuit for switching the connections between the respective capacitors and the AC power supply so that the output voltage of the AC power supply is applied to each of the respective capacitors at a cycle shorter than the cycle of the AC power supply.

    摘要翻译: 用于转换来自交流电源的输出电压的A转换器电路设置有用于整流交流电源的输出电压的整流电路; 串联连接的第一和第二电容器,用于平滑整流器电路的输出; 以及用于切换各个电容器和AC电源之间的连接的开关电路,使得以比AC电源的周期短的周期将AC电源的输出电压施加到每个相应的电容器。

    PRESS MACHINE DIE UNIT REPLACING DEVICE
    8.
    发明申请
    PRESS MACHINE DIE UNIT REPLACING DEVICE 审中-公开
    压机机组更换装置

    公开(公告)号:US20130310236A1

    公开(公告)日:2013-11-21

    申请号:US13990645

    申请日:2010-11-30

    IPC分类号: B23Q3/155 B21D37/04

    摘要: A press machine die unit replacing device for replacing die units in a press machine may include a die unit storage device controllably rotatably disposed on a position adjacent to a press machine and having various types of replacement die units that are placed thereon, and a transferring mechanism that is capable of transferring the die units between the die unit storage device and the press machine. The die units selected by controllable rotation of the die unit storage device are capable of being carried in or discharged from the press machine via the transferring mechanism.

    摘要翻译: 用于更换冲压机中的模具单元的冲压机模具单元更换装置可以包括可控地旋转地设置在与冲压机相邻的位置并具有放置在其上的各种类型的更换模具单元的模具单元存储装置,以及转移机构 能够在模具单元存储装置和压力机之间传送模具单元。 通过模具单元存储装置的可控旋转选择的模具单元能够通过传送机构被携带或从压力机排出。

    SEMICONDUCTOR DEVICE, POWER CONVERTER AND METHOD FOR CONTROLLING THE POWER CONVERTER
    9.
    发明申请
    SEMICONDUCTOR DEVICE, POWER CONVERTER AND METHOD FOR CONTROLLING THE POWER CONVERTER 有权
    半导体器件,功率转换器和控制功率转换器的方法

    公开(公告)号:US20130107600A1

    公开(公告)日:2013-05-02

    申请号:US13583825

    申请日:2012-04-16

    IPC分类号: H03K17/06 H02M7/537 H01L29/78

    摘要: Disclosed is a semiconductor device which includes: a semiconductor element 200 including a first metal-insulator-semiconductor field-effect transistor 200a and a second metal-insulator-semiconductor field-effect transistor 200b which is connected in parallel with the first metal-insulator-semiconductor field-effect transistor; and a control section which controls the operation of the semiconductor element. The control section controls the semiconductor element so that in a forward direction mode, current flows in a forward direction through the first and second metal-insulator-semiconductor field-effect transistors but that in a reverse direction mode, current flows in the reverse direction through the first metal-insulator-semiconductor field-effect transistor but does not flow through the second metal-insulator-semiconductor field-effect transistor.

    摘要翻译: 公开了一种半导体器件,其包括:半导体元件200,其包括第一金属 - 绝缘体半导体场效应晶体管200a和与第一金属绝缘体 - 半导体场效应晶体管200a并联连接的第二金属 - 半导体场效应晶体管; 以及控制部,其控制半导体元件的动作。 控制部分控制半导体元件,使得在正向模式中,电流沿正向流过第一和第二金属 - 绝缘体 - 半导体场效应晶体管,但是在反向模式中,电流沿相反方向通过 第一金属 - 绝缘体 - 半导体场效应晶体管,但不流过第二金属 - 绝缘体 - 半导体场效应晶体管。

    Sound absorbing material, multilayer sound absorbing material, molded product of multilayer sound absorbing material, sound absorbing interior material, and sound absorbing floor covering material
    10.
    发明授权
    Sound absorbing material, multilayer sound absorbing material, molded product of multilayer sound absorbing material, sound absorbing interior material, and sound absorbing floor covering material 有权
    吸声材料,多层吸声材料,多层吸声材料的成型产品,吸音内饰材料和吸音地板覆盖材料

    公开(公告)号:US08393438B2

    公开(公告)日:2013-03-12

    申请号:US13122287

    申请日:2009-03-18

    IPC分类号: E04B1/82

    摘要: The object of the present invention is to provide a sound absorbing material having a light weight and excellent sound absorbing performance, and a sound absorbing material consisting of a fiber sheet made of fibers containing at least 50% by mass of a porous fiber having many minute pores, each minute pore opening onto the surface of the porous fiber, and having an airflow resistance in the range of between 0.05 and 3.0 kPa·s/m.The porous fiber having many minute pores, each one opening onto the surface of the porous fiber, has air-permeability, and so a sound absorbing property in itself, and a sheet made of the porous fiber having air-permeability and sound absorbing property has even further sound absorbing properties created by the spaces between the porous fibers, resulting in the sheet becoming a sound absorbing material with extremely great sound absorbing efficiency.

    摘要翻译: 本发明的目的是提供一种重量轻且吸音性能优异的吸音材料,以及由纤维制成的吸音材料,该纤维片材含有至少50质量%多孔纤维 孔隙,多孔纤维表面上的每分钟孔隙,气流阻力在0.05-3.0kPa·s / m的范围内。 多孔纤维具有多孔,多孔纤维的表面开口的多孔纤维具有透气性,因此其吸音性本身以及具有透气性和吸音性的多孔纤维制成的片具有 甚至由多孔纤维之间的空间产生的进一步的吸声性能,导致该片材成为具有非常大的吸声效率的吸声材料。