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    • 32. 发明授权
    • Input/output circuit, reference-voltage generating circuit, and semiconductor integrated circuit
    • US07038498B2
    • 2006-05-02
    • US11000005
    • 2004-12-01
    • Seiji Funaba
    • Seiji Funaba
    • H03K5/22
    • H04L25/028H03K19/018592H04L25/0278H04L25/0292
    • Disclosed is an input/output circuit having a terminating circuit that contributes to a smaller chip area. The input/output includes an output buffer having a first series circuit, which comprises a first transistor and a resistor and a second series circuit, which comprises a second transistor and a resistor, connected in parallel between a high-potential power supply and an input/output pin, as well as a third series circuit, which comprises a third transistor and a resistor and a fourth series circuit, which comprises a fourth transistor and a resistor, connected in parallel between the input/output pin and a low-potential power supply. The input/output circuit further includes an input buffer having an input terminal connected to the input/output pin, and a control circuit which, at the time of a signal output, performs control for supplying a signal, which is obtained by inverting the logic of output data, to gates of the first to fourth transistors, and which, at the time of a signal input, performs control for supplying the gates of the first and third transistors with the high-potential power supply voltage and low-potential power supply voltage, respectively, and the gates of the second and fourth transistors with the low-potential power supply voltage and high-potential power supply voltage, respectively.
    • 37. 发明申请
    • Automotive Vehicle Inverter Control Apparatus
    • 汽车变频器控制装置
    • US20140232181A1
    • 2014-08-21
    • US14240811
    • 2012-07-19
    • Masashige TsujiYasuo NotoSeiji Funaba
    • Masashige TsujiYasuo NotoSeiji Funaba
    • H02M7/537B60L11/18
    • H02M7/537B60L11/1803B60R16/02H02M7/003H02M7/42
    • In an automotive vehicle inverter control apparatus of the related art, a limp-home mode is provided, but six power sources including transformers are required for respective gate circuits of the respective IGBT drive circuits. Therefore, a reduction in size and a reduction in weight cannot be achieved, and a demand of the improvement of mountability or the improvement of fuel consumption as described above cannot be satisfied. A power semiconductor module and the drive circuit include three unit semiconductor modules and three unit drive circuits corresponding to a three-phase alternating current, and power supply units of the unit drive circuits are provided independently, whereby the limp-home mode is provided and in addition, the number of power supply units may be reduced, so that the reduction in size and the reduction in weight are achieved.
    • 在现有技术的汽车用逆变器控制装置中,提供了跛脚回位模式,但是对于各个IGBT驱动电路的各个门电路,需要包括六个电源,包括变压器。 因此,不能实现小型化和轻量化,不能满足如上所述的安装性的提高或燃料消耗的提高的要求。 功率半导体模块和驱动电路包括对应于三相交流电的三个单位半导体模块和三个单元驱动电路,并且独立地提供单元驱动电路的电源单元,从而提供跛脚模式,并且 此外,可以减少供电单元的数量,从而实现尺寸的减小和重量的减轻。
    • 38. 发明授权
    • Electric power conversion system
    • 电力转换系统
    • US08791681B2
    • 2014-07-29
    • US13201139
    • 2010-02-19
    • Yoshio AkaishiYasuo NotoKoichi YahataSeiji FunabaMasashige Tsuji
    • Yoshio AkaishiYasuo NotoKoichi YahataSeiji FunabaMasashige Tsuji
    • H02M3/156
    • H02M7/48B60L11/1851H02M2001/322Y02T10/7005Y02T10/705
    • A power conversion system according to the present invention includes: an inverter circuit unit that converts a direct current power supplied from a direct current source into an alternating current power, the direct current power being supplied to the inverter circuit through a contactor that conducts and interrupts the direct current; a capacitor that smoothes the direct current power; a discharge circuit unit that is connected to the capacitor in parallel, and that includes a discharge resistor for discharging a charge stored in the capacitor and a switching element for the discharge resistor, being connected in series to the discharge resistor; a voltage detection circuit unit that detects voltage between both terminals of the capacitor; a first discharge control circuit that includes a first microcomputer, and that outputs a control signal to control switching of the switching element for discharging; and a second discharge control circuit that outputs an interruption signal to interrupt the switching element for the discharge resistor.
    • 根据本发明的电力变换系统包括:逆变器电路单元,其将从直流源提供的直流电力转换为交流电力,直流电力通过接触器提供给逆变器电路,所述接触器导通和中断 直流电; 一个平滑直流电源的电容器; 放电电路单元,其并联连接到电容器,并且包括用于放电存储在电容器中的电荷的放电电阻器和用于放电电阻器的开关元件串联连接到放电电阻器; 电压检测电路单元,其检测所述电容器的两端之间的电压; 第一放电控制电路,包括第一微型计算机,并且输出控制信号以控制用于放电的开关元件的切换; 以及输出中断信号以中断放电电阻器的开关元件的第二放电控制电路。
    • 39. 发明授权
    • Discharge circuit for smoothing capacitor of DC power supply
    • 直流电源滤波电容放电电路
    • US08436590B2
    • 2013-05-07
    • US12852191
    • 2010-08-06
    • Seiji FunabaYasuo NotoMasashige Tsuji
    • Seiji FunabaYasuo NotoMasashige Tsuji
    • H02J7/00H02M3/06H01G9/00
    • H02J7/0031B60K6/445H02J7/0077H02J7/045H02J7/047H02J9/002H02M1/36H02M2001/322Y02T10/6239
    • A discharge circuit for a DC power supply smoothing capacitor that is used in a power conversion device that supplies DC power via a switch to the DC power supply smoothing capacitor and an inverter, includes; a resistor that discharges charge in the capacitor; a switch connected in series with the resistor, that either passes or intercepts discharge current flowing from the capacitor to the resistor; a measurement circuit that measures a terminal voltage of the capacitor; and a control circuit that controls continuity and discontinuity of the switch; wherein the control circuit, after having made the switch continuous and starting discharge of the capacitor by the resistor, if a terminal voltage of the capacitor as measured by the measurement circuit exceeds a voltage decrease characteristic set in advance, makes the switch discontinuous and stops discharge by the resistor.
    • 包括:用于直流电源平滑电容器的放电电路,其用于通过开关向直流电源平滑电容器和逆变器提供直流电力的电力转换装置; 放电电容器中的电荷的电阻器; 与电阻器串联的开关,其通过或截止从电容器流向电阻器的放电电流; 测量电容器的端电压的测量电路; 以及控制电路,其控制开关的连续性和不连续性; 其中,所述控制电路在使所述开关连续地通过所述电阻器连续地开始所述电容器的放电之后,如果由所述测量电路测量的所述电容器的端子电压超过预先设定的电压降低特性,则使所述开关不连续并停止放电 由电阻器。