Gate driver for MOS control semiconductor devices
    1.
    发明授权
    Gate driver for MOS control semiconductor devices 失效
    用于MOS控制半导体器件的栅极驱动器

    公开(公告)号:US06703874B2

    公开(公告)日:2004-03-09

    申请号:US10436265

    申请日:2003-05-13

    IPC分类号: H03K300

    摘要: A gate driver is provided for controlling a gate voltage of each of a plurality of MOS control semiconductor devices, such as IGBTs or metal oxide MOS transistors, of a semiconductor power converter in which said MOS control semiconductors are connected in series with each other, the gate driver includes a power supply line having a higher potential than a gate potential on each of said MOS control semiconductor devices when in steady ON state, and an arrangement for supplying a current from the power source line to the gate of each of said MOS control semiconductors to increase the gate voltage of the MOS control semiconductor devices when a potential difference between said power supply line and an emitter of each of said MOS control semiconductors is constant and when a collector voltage of the MOS control semiconductor device exceeds a predetermined value under ON state of the MOS control semiconductor device.

    摘要翻译: 提供一种栅极驱动器,用于控制半导体功率转换器中的多个MOS控制半导体器件(例如IGBT或金属氧化物MOS晶体管)中的每一个的栅极电压,其中所述MOS控制半导体彼此串联连接, 栅极驱动器包括在稳定导通状态时具有比每个所述MOS控制半导体器件上的栅极电位高的电位的电源线,以及用于将电流从电源线提供给每个所述MOS控制的栅极的装置 半导体,当所述电源线和所述MOS控制半导体的每一个的发射极之间的电位差恒定时,以及当所述MOS控制半导体器件的集电极电压在ON时超过预定值时,增加所述MOS控制半导体器件的栅极电压 MOS控制半导体器件的状态。

    Semiconductor power converting apparatus
    2.
    发明授权
    Semiconductor power converting apparatus 有权
    半导体电力转换装置

    公开(公告)号:US06809561B2

    公开(公告)日:2004-10-26

    申请号:US10638400

    申请日:2003-08-12

    IPC分类号: H03K300

    摘要: A semiconductor power converting apparatus including at least one series arrangement of MOS control semiconductor devices such as Insulator-gate Bipolar Transistors (IGBTs) or metal oxide MOS transistors which are respectively applied with a gate voltage under the control of corresponding a driver. The driver contains a supply line having a higher potential than a gate voltage of an IGBT coupled thereto when the IGBT is in a steady ON state, and is such that is causes an increase of the gate voltage of the IGBT in accordance with the current of the supply line when a potential difference between the power supply line and an emitter of the IGBT is constant and the collector voltage thereof exceeds a predetermined value under an ON state of the IGBT.

    摘要翻译: 一种半导体功率转换装置,包括在相应的驱动器的控制下分别施加栅极电压的MOS控制半导体器件如绝缘体 - 栅双极晶体管(IGBT)或金属氧化物MOS晶体管的至少一个串联布置。 当IGBT处于稳定导通状态时,驱动器具有比与其耦合的IGBT的栅极电压更高的电位的电源线,并且使得根据电流的电流使IGBT的栅极电压增加 在IGBT的导通状态下,当电源线和IGBT的发射极之间的电位差恒定并且集电极电压超过预定值时,电源线。

    Power conversion apparatus
    5.
    发明授权
    Power conversion apparatus 有权
    电力转换装置

    公开(公告)号:US06490182B2

    公开(公告)日:2002-12-03

    申请号:US09972981

    申请日:2001-10-10

    IPC分类号: H02H7122

    摘要: A semiconductor electric power converter in accordance with the present invention comprises an arm consisting of an IGBT, a capacitor connected between a collector and a gate of said IGBT, and a gate circuit connected to the gate of said IGBT for controlling the switching operation of said IGBT, wherein a plurality of said arms connected in series are connected in parallel and each midpoint of said arms connected in of series is connected to a load. Thereby the impedance between the gate terminal of the IGBT and the gate circuit is decreased when the gate voltage is higher than the gate voltage command value or the impedance between the gate and the emitter of the IGBT is decreased when the collector voltage is high so that an electric charge stored in the gate is rapidly discharged.

    摘要翻译: 根据本发明的半导体电力转换器包括由IGBT组成的臂,连接在所述IGBT的集电极和栅极之间的电容器,以及连接到所述IGBT的栅极的栅极电路,用于控制所述IGBT的开关操作 IGBT,其中串联连接的多个所述臂并联连接,并且串联连接的所述臂的每个中点连接到负载。 因此,当栅极电压高于栅极电压指令值时,IGBT的栅极端子与栅极电路之间的阻抗降低,或者当集电极电压高时IGBT的栅极和发射极之间的阻抗降低,从而 存储在门中的电荷被快速排出。

    Transport system and dynamo-electric machine
    9.
    发明申请
    Transport system and dynamo-electric machine 审中-公开
    运输系统和发电机

    公开(公告)号:US20060033402A1

    公开(公告)日:2006-02-16

    申请号:US11257119

    申请日:2005-10-25

    IPC分类号: H02K21/12 H02K1/22

    摘要: A dynamo-electric machine has a stator with a primary winding and a rotor with a field magnet and a shaft. the field magnet includes a first field magnet having different polarity magnetic poles sequentially arranged in a rotation direction and a second field magnet having different polarity magnetic poles sequentially arranged in a rotation direction. The machine further has a mechanism for shifting the first and the second field magnets in axial and rotation directions.

    摘要翻译: 发电机具有具有初级绕组的定子和具有磁场磁铁和轴的转子。 磁场磁体包括沿着旋转方向依次布置有不同极性磁极的第一磁场磁体和沿着旋转方向依次排列的具有不同极性磁极的第二磁场磁体。 该机器还具有用于沿轴向和旋转方向移动第一和第二场磁体的机构。