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    • 1. 发明申请
    • POWER MODULE
    • 电源模块
    • US20120224288A1
    • 2012-09-06
    • US13267224
    • 2011-10-06
    • Shiori UOTATakahiro InoueKoji TamakiShoichi Orita
    • Shiori UOTATakahiro InoueKoji TamakiShoichi Orita
    • H02H3/26
    • H03K17/18H03K17/0828H03K2217/0027
    • A power module includes a current sensing circuit in which a transistor includes an emitter connected to a sense emitter of a current sense element of an IGBT and a base connected to ground, a current sensing resistor including one end thereof connected to a collector of the transistor and the other end thereof connected to a common connection portion. The power module detects, as a current sensing voltage, a potential difference generated by the current sensing resistor based on the common connection portion as a reference, compares the current sensing voltage with a predetermined threshold voltage, and determines whether or not an overcurrent flows through the IGBT according to a magnitude relation therebetween.
    • 电源模块包括电流检测电路,其中晶体管包括连接到IGBT的电流感测元件的感测发射极和连接到地的基极的发射极,电流感测电阻器的一端连接到晶体管的集电极 并且其另一端连接到公共连接部分。 功率模块以公共连接部作为基准,将电流检测电阻产生的电位差作为电流检测电压进行检测,将电流检测电压与规定的阈值电压进行比较,判断过电流是否流过 IGBT根据它们之间的大小关系。
    • 2. 发明授权
    • Power module
    • 电源模块
    • US09007736B2
    • 2015-04-14
    • US13267224
    • 2011-10-06
    • Shiori UotaTakahiro InoueKoji TamakiShoichi Orita
    • Shiori UotaTakahiro InoueKoji TamakiShoichi Orita
    • H02H3/00H03K17/18H03K17/082
    • H03K17/18H03K17/0828H03K2217/0027
    • A power module includes a current sensing circuit in which a transistor includes an emitter connected to a sense emitter of a current sense element of an IGBT and a base connected to ground, a current sensing resistor including one end thereof connected to a collector of the transistor and the other end thereof connected to a common connection portion. The power module detects, as a current sensing voltage, a potential difference generated by the current sensing resistor based on the common connection portion as a reference, compares the current sensing voltage with a predetermined threshold voltage, and determines whether or not an overcurrent flows through the IGBT according to a magnitude relation therebetween.
    • 电源模块包括电流检测电路,其中晶体管包括连接到IGBT的电流感测元件的感测发射极和连接到地的基极的发射极,电流感测电阻器的一端连接到晶体管的集电极 并且其另一端连接到公共连接部分。 功率模块以公共连接部作为基准,将电流检测电阻产生的电位差作为电流检测电压进行检测,将电流检测电压与规定的阈值电压进行比较,判断过电流是否流过 IGBT根据它们之间的大小关系。
    • 6. 发明授权
    • Semiconductor apparatus having protective circuitry
    • 具有保护电路的半导体装置
    • US5917359A
    • 1999-06-29
    • US671545
    • 1996-06-27
    • Masanori FukunagaShoichi Orita
    • Masanori FukunagaShoichi Orita
    • H03K17/08H03K3/037H03K17/06H03K17/16H03K19/0175
    • H03K17/16H03K17/063H03K3/0375H01L2924/0002
    • The drain electrodes of HNMOS transistors (2) and (3) are connected to the first ends of resistors (4) and (5), and to the inputs of inverter circuits (6) and (7) respectively. The outputs of the inverter circuits (6) and (7) are connected to the inputs of a protection circuit (27). The outputs of the protection circuit (27) are connected to the set and reset inputs of a flip-flop circuit (10A). The protection circuit (27) serves to prevent the malfunction of the flip-flop circuit (10A) from occurring and is formed by a logic gate. Having this configuration high potential side power device driving circuit is provided wherein the pulse widths of signals input to the gate electrodes of transistors for level shift can be set optionally, the lag time of the signal is not caused by a passage through a filter circuit, and the malfunction of a flip-flop circuit can be prevented from occurring due to a dv/dt current without lowering the response performance of a power device.
    • HNMOS晶体管(2)和(3)的漏电极分别连接到电阻器(4)和(5)的第一端,并分别连接到反相器电路(6)和(7)的输入端。 逆变器电路(6)和(7)的输出端连接到保护电路(27)的输入端。 保护电路(27)的输出端连接到触发器电路(10A)的置位和复位输入端。 保护电路(27)用于防止触发电路(10A)的故障发生并由逻辑门形成。 具有这种配置的高电位侧功率器件驱动电路,其中输入到用于电平移位的晶体管的栅电极的信号的脉冲宽度可以任意设定,信号的滞后时间不是由于通过滤波电路而引起的, 并且可以防止由于dv / dt电流而发生触发电路的故障而不降低功率器件的响应性能。
    • 7. 发明授权
    • Semiconductor device
    • 半导体器件
    • US06529061B1
    • 2003-03-04
    • US10118251
    • 2002-04-09
    • Shoichi Orita
    • Shoichi Orita
    • H03K1716
    • H03K17/063H03K17/162
    • In a level-shift circuit of the high-side section of an HVIC, a switching-on level-shift resistance member includes two resistors, and a switching-off level-shift resistance member includes two resistors. A logic filter set fetches potentials of the both end of the resistor as signals Aon and Bon, and fetches potentials of the both end of the resistor as signals Aoff and Boff. When an output period of the signals Bon and Boff is longer than that of the signals Aon and Aoff, the logic filter set does not output an abnormal signal by judging that a recoverry signal is detected.
    • 在HVIC的高侧部分的电平移位电路中,接通电平移动电阻部件包括两个电阻器,并且关断电平移动电阻部件包括两个电阻器。 逻辑滤波器组取电阻器两端的电位作为信号Aon和Bon,并将电阻两端的电位取为信号Aoff和Boff。 当信号Bon和Boff的输出周期长于信号Aon和Aoff的输出周期时,逻辑滤波器组不通过判断检测到恢复信号而输出异常信号。
    • 8. 发明授权
    • Reverse level shift circuit and power semiconductor device
    • 反向电平移位电路和功率半导体器件
    • US06498738B1
    • 2002-12-24
    • US10118252
    • 2002-04-09
    • Shoichi OritaYoshikazu Tanaka
    • Shoichi OritaYoshikazu Tanaka
    • H02M324
    • H03K19/018521H03K17/18H03K2217/0063
    • A reverse level shift circuit that is low in cost and excellent in reliability is provided by employing no Pch-DMOS transistor and forming it together with a level shift circuit on one semiconductor substrate. An input voltage signal (VIN) on high side is converted to a current signal by a voltage-current conversion circuit (CV1) and a current source (CS1). Using a Nch-DMOS transistor (ND1) of common gate construction as a high breakdown voltage resistance, the current signal is then transferred to low side, on which the current signal is converted to a voltage signal by a current source (CS2) and a current-voltage conversion circuit (CV2). Thereby, the signal change of the signal (VIN) using potential (HGND) as a reference potential can be outputted as a signal change of signal (VOUT) that uses potential (GND) as a reference potential.
    • 通过不使用Pch-DMOS晶体管并且在一个半导体衬底上与电平移位电路一起形成,从而提供成本低且可靠性优异的反向电平移位电路。 高压侧的输入电压信号(VIN)由电压 - 电流转换电路(CV1)和电流源(CS1)转换为电流信号。 使用公共栅极结构的Nch-DMOS晶体管(ND1)作为高耐击穿电压电阻,然后将电流信号传送到低电平,电流信号由电流源(CS2)转换为电压信号, 电流 - 电压转换电路(CV2)。 因此,作为基准电位的电位(HGND)的信号(VIN)的信号变化可以作为使用电位(GND)作为参考电位的信号(VOUT)的信号变化来输出。