SEMICONDUCTOR DEVICE
    2.
    发明申请
    SEMICONDUCTOR DEVICE 有权
    半导体器件

    公开(公告)号:US20130153900A1

    公开(公告)日:2013-06-20

    申请号:US13818993

    申请日:2011-08-26

    IPC分类号: H01L23/34

    摘要: A semiconductor device capable of rapidly and accurately sensing the information regarding the temperature of a semiconductor transistor contained therein. A MOSFET includes a plurality of cells, and includes a main cell group including a cell for supplying a current to a load among the plurality of cells, and a sense cell group including a cell for sensing temperature information regarding the temperature of the MOSFET thereamong. The main cell group and the sense cell group have different temperature characteristics showing changes in electrical characteristics to changes in temperature. A temperature sensing circuit senses the temperature of the MOSFET based on, for example, a value of a main current flowing through the main cell group and a value of a sense current flowing through the sense cell group.

    摘要翻译: 一种半导体器件,其能够快速且准确地感测关于其中包含的半导体晶体管的温度的信息。 MOSFET包括多个单元,并且包括主单元组,其包括用于向多个单元之间的负载提供电流的单元,以及包括用于感测关于MOSFET的温度的温度信息的单元的感测单元组。 主电池组和感应电池组具有不同的温度特性,显示电特性随温度变化的变化。 温度检测电路基于例如流过主单元组的主电流的值和流过感测单元组的感测电流的值来感测MOSFET的温度。

    Power semiconductor module, power converting apparatus, and railway car
    3.
    发明授权
    Power semiconductor module, power converting apparatus, and railway car 有权
    功率半导体模块,电力转换装置和铁路车辆

    公开(公告)号:US09270193B2

    公开(公告)日:2016-02-23

    申请号:US13582834

    申请日:2010-10-29

    摘要: A power semiconductor module includes an element pair formed by connecting, in anti-parallel to each other, an IGBT and an FWD group in which an FWD, a voltage drop characteristic of which during conduction has a negative temperature coefficient, and an FED, a voltage drop characteristic of which during conduction has a positive temperature coefficient, are connected in series and an element pair formed by connecting, in anti-parallel to each other, an IGBT and an FWD group in which a FWD, a voltage drop characteristic of which during conduction has a negative temperature coefficient, and an FWD, a voltage drop characteristic of which during conduction has a positive temperature coefficient, are connected in series. The element pairs are connected in parallel.

    摘要翻译: 功率半导体模块包括通过以彼此反并联的方式连接IGBT和FWD组形成的元件对,其中FWD(其导通期间的电压降特性具有负温度系数)以及FED, 在导通期间具有正温度系数的电压降特性串联连接,并且通过将IGBT和FWD组反向并联连接形成的元件对,其中FWD,其电压降特性 在导通时具有负温度系数,并且在导通期间具有正温度系数的电压降特性的FWD串联连接。 元件对并联连接。

    Semiconductor device
    4.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US08785931B2

    公开(公告)日:2014-07-22

    申请号:US13818993

    申请日:2011-08-26

    IPC分类号: H01L23/58 H01L29/78

    摘要: A semiconductor device capable of rapidly and accurately sensing the information regarding the temperature of a semiconductor transistor contained therein. A MOSFET includes a plurality of cells, and includes a main cell group including a cell for supplying a current to a load among the plurality of cells, and a sense cell group including a cell for sensing temperature information regarding the temperature of the MOSFET thereamong. The main cell group and the sense cell group have different temperature characteristics showing changes in electrical characteristics to changes in temperature. A temperature sensing circuit senses the temperature of the MOSFET based on, for example, a value of a main current flowing through the main cell group and a value of a sense current flowing through the sense cell group.

    摘要翻译: 一种半导体器件,其能够快速且准确地感测关于其中包含的半导体晶体管的温度的信息。 MOSFET包括多个单元,并且包括主单元组,其包括用于向多个单元之间的负载提供电流的单元,以及包括用于感测关于MOSFET的温度的温度信息的单元的感测单元组。 主电池组和感应电池组具有不同的温度特性,显示电特性随温度变化的变化。 温度检测电路基于例如流过主单元组的主电流的值和流过感测单元组的感测电流的值来感测MOSFET的温度。

    Drive circuit for semiconductor element
    5.
    发明授权
    Drive circuit for semiconductor element 有权
    半导体元件驱动电路

    公开(公告)号:US07948277B2

    公开(公告)日:2011-05-24

    申请号:US12294437

    申请日:2007-04-04

    IPC分类号: H03K3/00

    摘要: A drive circuit wherein any abnormality of a semiconductor element is prevented from being erroneously sensed in a case where a gate “ON” command has entered in a state in which a gate voltage of the semiconductor element has not lowered fully. A detection process for a controlled variable of the semiconductor element is permitted only within a period which corresponds to a controlled variable of the semiconductor element at the time when an “ON” signal has been inputted to a control circuit, and a detected controlled variable which is detected within the period and a comparison controlled variable which is set in correspondence with the controlled variable are compared so as to output an abnormality signal, whereby the semiconductor element is turn-off at a speed lower than in normal turn-off.

    摘要翻译: 在半导体元件的栅极电压未完全降低的状态下,在栅极“ON”指令进入的情况下,防止半导体元件的任何异常被错误地检测到的驱动电路。 只有在“ON”信号被输入到控制电路时的半导体元件的受控变量对应的期间内才允许半导体元件的受控变量的检测处理,以及检测到的控制变量, 在与该控制变量对应的情况下设定的比较控制变量进行比较,从而输出异常信号,由此半导体元件以比正常关断低的速度关断。

    Drive control device and drive control method
    9.
    发明授权
    Drive control device and drive control method 有权
    驱动控制装置及驱动控制方式

    公开(公告)号:US09024564B2

    公开(公告)日:2015-05-05

    申请号:US13851511

    申请日:2013-03-27

    摘要: The invention provides a drive control device that comprises: inverters that are connected to a motor; a variable resistive element that is connected between the motor and each of the inverters; a current/voltage detection device connected between the motor and each of the inverters; and a controller that, when detecting a fault of an inverter that drives the motor based on a detection signal from the current/voltage detection device, gradually increases a resistance value of a variable resistive element provided between the faulty inverter and the motor at a velocity of a resistance variation such that a surge voltage has a voltage value for which the variable resistive element and the motor are not damaged, and executes drive control of the motor by a normal inverter other than the faulty inverter.

    摘要翻译: 本发明提供了一种驱动控制装置,其包括:连接到电动机的反相器; 连接在电动机和每个逆变器之间的可变电阻元件; 连接在电动机和每个逆变器之间的电流/电压检测装置; 以及控制器,当基于来自所述电流/电压检测装置的检测信号检测到驱动所述电动机的逆变器的故障时,以设定在所述故障逆变器和所述电动机之间的可变电阻元件的电阻值以速度逐渐增加 电阻变化使得浪涌电压具有可变电阻元件和电动机不被损坏的电压值,并且通过除故障逆变器之外的正常逆变器来执行电动机的驱动控制。

    DRIVE CIRCUIT FOR SEMICONDUCTOR ELEMENT
    10.
    发明申请
    DRIVE CIRCUIT FOR SEMICONDUCTOR ELEMENT 有权
    半导体元件的驱动电路

    公开(公告)号:US20100231269A1

    公开(公告)日:2010-09-16

    申请号:US12294437

    申请日:2007-04-04

    IPC分类号: H03K3/021

    摘要: A drive circuit wherein any abnormality of a semiconductor element is prevented from being erroneously sensed in a case where a gate “ON” command has entered in a state in which a gate voltage of the semiconductor element has not lowered fully. A detection process for a controlled variable of the semiconductor element is permitted only within a period which corresponds to a controlled variable of the semiconductor element at the time when an “ON” signal has been inputted to a control circuit, and a detected controlled variable which is detected within the period and a comparison controlled variable which is set in correspondence with the controlled variable are compared so as to output an abnormality signal, whereby the semiconductor element is turn-off at a speed lower than in normal turn-off.

    摘要翻译: 在半导体元件的栅极电压未完全降低的状态下,在栅极“ON”指令进入的情况下,防止半导体元件的任何异常被错误地检测到的驱动电路。 只有在“ON”信号被输入到控制电路时的半导体元件的受控变量对应的期间内才允许半导体元件的受控变量的检测处理,以及检测到的控制变量, 在与该控制变量对应的情况下设定的比较控制变量进行比较,从而输出异常信号,由此半导体元件以比正常关断低的速度关断。