公开(公告)号：US20170074921A1

公开(公告)日：2017-03-16

申请号：US15180383

申请日：2016-06-13

申请人： Mitsubishi Electric Corporation

发明人： Shiori UOTA ,  Fumitaka TAMETANI ,  Takahiro INOUE ,  Rei YONEYAMA

IPC分类号： G01R31/26 ,  H01L27/06 ,  H01L29/739 ,  H01L29/16 ,  H01L29/861

CPC分类号： G01R31/2642 ,  G01R31/2608 ,  G01R31/2632 ,  G01R31/42 ,  H01L27/0635 ,  H01L29/16 ,  H01L29/1608 ,  H01L29/7393 ,  H01L29/861 ,  H03K17/18

摘要： A life estimation circuit includes a temperature detector configured to detect temperature of a power element unit, an inflection point detection unit configured to detect an inflection point of temperature variation in the power element unit based on an output signal from the temperature detector, an operation unit configured to determine an absolute value of a difference between the temperature of the power element unit at an inflection point detected this time and the temperature of the power element unit at an inflection point detected last time, a count circuit configured to count the number of times that the absolute value of the difference in temperature has reached a threshold temperature, and a signal generation unit configured to output, when a count value from the count circuit reaches a threshold number of times, an alarm signal indicating that the power element is about to reach the end of its life.

摘要翻译： 寿命估计电路包括：温度检测器，被配置为检测功率元件单元的温度;拐点检测单元，被配置为基于来自温度检测器的输出信号检测功率元件单元中的温度变化的拐点;操作单元 被配置为确定在此时检测的拐点处的功率元件单元的温度与上次检测到的拐点处的功率单元的温度之间的差的绝对值，配置为计数次数的计数电路 温度差的绝对值达到阈值温度，并且信号生成单元被配置为当来自计数电路的计数值达到阈值次数时，输出表示功率元件即将到达的报警信号 到达终身。

公开(公告)号：US20170063071A1

公开(公告)日：2017-03-02

申请号：US15094469

申请日：2016-04-08

申请人： Mitsubishi Electric Corporation

发明人： Rei YONEYAMA ,  Fumitaka TAMETANI ,  Manabu MATSUMOTO ,  Haruhiko TAKEMOTO ,  Hiroshi YOSHIDA ,  Motonobu JOKO

IPC分类号： H02H3/08 ,  H01L29/861 ,  H01L27/02 ,  H01L29/16 ,  H02M1/08 ,  H01L23/498 ,  H01L23/31 ,  H01L23/049 ,  H02H3/20 ,  H02H5/04 ,  H01L29/739 ,  H01L29/20

CPC分类号： H02H3/08 ,  H01L23/049 ,  H01L23/3114 ,  H01L23/49811 ,  H01L23/49844 ,  H01L27/0248 ,  H01L29/1602 ,  H01L29/1608 ,  H01L29/2003 ,  H01L29/7393 ,  H01L29/861 ,  H01L2224/48137 ,  H01L2224/4903 ,  H01L2224/73265 ,  H01L2924/181 ,  H01L2924/19107 ,  H02H3/085 ,  H02H3/20 ,  H02H5/04 ,  H02H5/041 ,  H02H7/10 ,  H02H7/222 ,  H02M1/08 ,  H02M1/32 ,  H02M7/003 ,  H02M7/5387 ,  H02M2001/327 ,  H01L2924/00012

摘要： The present invention relates to a semiconductor device and it is an object of the present invention to provide a semiconductor device that makes it easy to change a specification on driving of a power semiconductor element or control of a protection operation thereof. The semiconductor device includes a power semiconductor element, a main electrode terminal of the power semiconductor element, a sensor section that emits a signal corresponding to a physical state of the power semiconductor element, a sensor signal terminal connected to the sensor section, a drive terminal that supplies power to drive the power semiconductor element and a case that accommodates the power semiconductor element, the main electrode terminal, the sensor section, the sensor signal terminal and the drive terminal, and the sensor signal terminal and the drive terminal are provided so as to be connectable from outside the case.

摘要翻译： 本发明涉及一种半导体器件，其目的在于提供一种能够容易地改变功率半导体元件的驱动规格或者对其进行保护动作的控制的半导体装置。 半导体器件包括功率半导体元件，功率半导体元件的主电极端子，发出与功率半导体元件的物理状态对应的信号的传感器部，与传感器部连接的传感器信号端子，驱动端子 提供功率以驱动功率半导体元件和容纳功率半导体元件，主电极端子，传感器部分，传感器信号端子和驱动端子以及传感器信号端子和驱动端子的壳体被设置为 可以从外壳连接。

公开(公告)号：US20170278811A1

公开(公告)日：2017-09-28

申请号：US15509126

申请日：2015-08-19

申请人： Mitsubishi Electric Corporation

发明人： Kenichi SUGA ,  Takao TSURIMOTO ,  Hiroki SHIOTA ,  Kenichi MOROKUMA ,  Shoichi ORITA ,  Fumitaka TAMETANI ,  Takahiro INOUE ,  Shiori UOTA

IPC分类号： H01L23/00 ,  H04L1/00 ,  H01L23/373 ,  H01L25/16 ,  G11C11/34 ,  H05K7/14

CPC分类号： H01L24/03 ,  G11C11/34 ,  H01F27/2804 ,  H01F27/32 ,  H01F2027/2809 ,  H01L23/3738 ,  H01L23/62 ,  H01L23/645 ,  H01L25/162 ,  H01L25/18 ,  H04L1/0006 ,  H05K7/1432

摘要： A signal transmission insulating device includes: a first coil; a second coil opposing the first coil to form a transformer together with the first coil; a first insulating film provided between the opposing first coil and second coil and made of a first dielectric material; a second insulating film surrounding the first coil and made of a second dielectric material having a lower resistivity or a higher permittivity than the first dielectric material; and a third insulating film surrounding the second coil and made of a third dielectric material having a lower resistivity or a higher permittivity than the first dielectric material.