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1276 条记录 (耗时 0.024 秒)

    LOAD-DRIVING CIRCUIT
    93.
    发明公开
    LOAD-DRIVING CIRCUIT 审中-公开

    公开(公告)号：EP3104525A4

    公开(公告)日：2018-01-17

    申请号：EP14881471

    申请日：2014-12-08

    申请人： HITACHI AUTOMOTIVE SYSTEMS LTD

    发明人： SONEHARA MASAHITO ,  KOBAYASHI YOUICHIROU

    IPC分类号： H03K17/082 ,  H03K17/687

    CPC分类号： H03K17/0822 ,  H03K17/063 ,  H03K2217/0027 ,  H03K2217/0063 ,  H03K2217/0072

    摘要： A load-driving circuit for receiving a supply of power from a power source and driving a load, wherein the load-driving circuit is provided with: a high-side switching element; a low-side switching element; a high-side current detection circuit connected in parallel to the high-side switching element, the high-side current detection circuit detecting a high-side driving current; and a fault detection circuit for detecting the fault state of the load-driving circuit from the output result of the high-side current detection circuit. The high-side current detection circuit is provided with a high-side sense switching circuit operating in response to a gate signal that is different from the high-side switching element, the high-side sense switching circuit comprising a device of the same type as the high-side switching element. The output result of the high-side current detection circuit, the gate signal of the high-side switching element, and the gate signal of the high-side sense switching element are input and the fault states are detected apart from each other when the connection terminal between the load-driving circuit and the load is in a state of short circuit with the positive electrode side of the power source or in a state of short circuit with the negative electrode side of the power source.

    SOFT SHUTDOWN MODULAR CIRCUITRY FOR POWER SEMICONDUCTOR SWITCHES
    95.
    发明公开
    SOFT SHUTDOWN MODULAR CIRCUITRY FOR POWER SEMICONDUCTOR SWITCHES 审中-公开
    功率半导体开关的软关断模块电路

    公开(公告)号：EP3229373A1

    公开(公告)日：2017-10-11

    申请号：EP16164054.5

    申请日：2016-04-06

    申请人： Andreas, Volke ,  Fink, Karsten

    发明人： Andreas, Volke ,  Fink, Karsten

    IPC分类号： H03K17/082 ,  H03K17/16

    CPC分类号： H03K17/081 ,  H02M1/088 ,  H03K17/082 ,  H03K17/166 ,  H03K2217/0027

    摘要： Circuitry for soft shutdown of a power switch and a power converters that includes circuitry for soft shutdown are described. In one aspect, circuitry for soft shutdown of a power switch includes a sense input to be coupled to a power switch receive a signal representative of current passing through the power switch, a comparator to compare the signal with an overcurrent threshold indicative of an overcurrent condition of the power switch and to output a triggering signal in response to the comparison indicating the overcurrent condition, and a gating transistor to be coupled to a control terminal of the power switch, the gating transistor configured to divert a portion of a drive signal away from the control terminal of the power switch in response to the triggering signal.

    摘要翻译： 描述了用于软关断电源开关的电路和包括用于软关断的电路的电源转换器。 在一个方面，用于功率开关的软关断的电路包括将被耦合到功率开关的感测输入端，该功率开关接收表示通过功率开关的电流的信号，比较器将该信号与指示过电流状况的过电流阈值进行比较 并且响应于指示过电流状况的比较而输出触发信号，以及选通晶体管将被耦合到功率开关的控制端，所述选通晶体管被配置为将驱动信号的一部分转移离开 该电源开关的控制端响应该触发信号。

    ELEKTRONISCHER SCHALTER
    97.
    发明公开
    ELEKTRONISCHER SCHALTER 审中-公开

    公开(公告)号：EP3189593A1

    公开(公告)日：2017-07-12

    申请号：EP15756859.3

    申请日：2015-08-12

    申请人： Ellenberger & Poensgen GmbH

    发明人： ASANZA MALDONADO, Diego, Fernando

    IPC分类号： H03K17/082 ,  H03K17/60 ,  H03K17/61 ,  H03K17/691

    CPC分类号： H02M3/33576 ,  H03K17/082 ,  H03K17/601 ,  H03K17/61 ,  H03K17/691

    摘要： The invention relates to an electronic switch (1) for switching a load (7), having a current path (3) which runs between an operating voltage connection (5) and a load connection (6a) and to which a power transistor (2) and a current sensor (4) sensing the load current (I
    L ) are connected, and having a control or regulating device (8, 9) which controls the power transistor (2) on the basis of the load current (I
    L ), wherein the control or regulating device (8, 9) is connected to the secondary circuit (15) of a converter circuit (12) having a transformer (13), the primary circuit (14) of which is connected to the operating voltage connection (5) via a controlled switch arrangement (19, 20).

    摘要翻译： 一种用于切换负载的电子开关，其具有在工作电压连接和负载连接之间运行的电流路径，并且功率晶体管和感测负载电流的电流传感器连接到所述电子开关，并且具有控制或调节装置， 其中所述控制或调节装置连接到具有变压器的变换器电路的次级电路，所述变压器的次级电路经由受控开关装置连接到所述工作电压连接。

    CONTROL CIRCUIT WITH FEEDBACK
    98.
    发明公开
    CONTROL CIRCUIT WITH FEEDBACK 审中-公开
    控制电路与反馈

    公开(公告)号：EP3174205A1

    公开(公告)日：2017-05-31

    申请号：EP15196750.2

    申请日：2015-11-27

    申请人： ABB Technology Oy

    发明人： Saarinen, Mikko ,  Oinonen, Markus

    IPC分类号： H03K17/16 ,  H03K17/082 ,  H02M1/00

    CPC分类号： H03K17/567 ,  H02M1/08 ,  H02M2001/0009 ,  H02M2001/0029 ,  H02M2001/342 ,  H02M2001/346 ,  H03K17/0828 ,  H03K17/166 ,  H03K17/168 ,  H03K2217/0027 ,  Y02B70/1491

    摘要： A gate drive circuit adapted to control a power semiconductor component, the gate drive circuit comprising a gate driver connectable to a positive auxiliary voltage (V+) and to a negative auxiliary voltage (V-), the gate drive circuit comprising a feedback circuit having an inductive coupling element for providing a feedback signal, wherein one end of the feedback circuit having the inductive coupling element is connected to a known reference potential and the other end of the feedback circuit is connected to the gate driver, and the inductive coupling element is inductively coupled to the main current path of the power semiconductor component for providing feedback signal to the gate driver based on the change rate of the current of the power semiconductor component for limiting the change rate of the current of the power semiconductor component.

    摘要翻译： 一种适用于控制功率半导体元件的栅极驱动电路，所述栅极驱动电路包括可连接到正的辅助电压（V +）和负的辅助电压（V-）的栅极驱动器，所述栅极驱动电路包括反馈电路，所述反馈电路具有 电感耦合元件，用于提供反馈信号，其中具有电感耦合元件的反馈电路的一端连接到已知参考电位，反馈电路的另一端连接到栅极驱动器，并且感应耦合元件感应地 耦合到功率半导体元件的主电流路径，用于基于用于限制功率半导体元件的电流的变化率的功率半导体元件的电流的变化率向栅极驱动器提供反馈信号。

    SEMICONDUCTOR DEVICE
    100.
    发明公开
    SEMICONDUCTOR DEVICE 审中-公开
    半导体器件

    公开(公告)号：EP3104527A3

    公开(公告)日：2017-04-12

    申请号：EP16169004.5

    申请日：2016-05-10

    申请人： Fuji Electric Co. Ltd.

    发明人： IWAMIZU, Morio ,  YOSHIDA, Yasuki

    IPC分类号： H03K17/284 ,  H03K17/082 ,  H03K17/0812 ,  H03K5/08

    CPC分类号： H03K17/687 ,  H02M3/07 ,  H02P31/00 ,  H03K5/08 ,  H03K17/08122 ,  H03K17/0822 ,  H03K17/284 ,  H03K2217/0081

    摘要： When activating a motor, a gate voltage with which a power semiconductor element (11) may supply a rush current of the motor (2) is generated by a charge pump circuit (12), when a certain time (time until the rush current ends) has elapsed after activating the motor (2), a timer circuit (16) operates a gate clamp circuit (17), which reduces the gate voltage of the power semiconductor element (11) to reduce the current-carrying capability of the power semiconductor element (11). Subsequently, when the motor has caused a short-circuit failure, the power semiconductor element (11), because its gate voltage is reduced by the gate clamp circuit (17) in advance, supplies only a load short current corresponding to the reduced gate voltage. Accordingly, the heat generation due to the short-circuit current is also small and an increase in temperature is also suppressed.

    摘要翻译： 在电动机起动时，由电荷泵电路（12）产生功率半导体元件（11）供给电动机（2）的冲击电流的栅极电压，在一定时间（到冲击电流结束为止的时间 ）在启动马达（2）之后已经过去，定时器电路（16）操作栅极钳位电路（17），栅极钳位电路（17）降低功率半导体元件（11）的栅极电压以降低功率半导体的载流能力 元素（11）。 接着，在电动机发生短路故障的情况下，功率半导体元件（11）预先通过栅极钳位电路（17）降低栅极电压，仅供给与栅极电压降低对应的负载短路电流 。 因此，由短路电流引起的发热也小，并且温度的升高也被抑制。