公开(公告)号：US20120001574A1

公开(公告)日：2012-01-05

申请号：US13171582

申请日：2011-06-29

申请人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Hirokazu Matsui

发明人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Hirokazu Matsui

IPC分类号： H02P6/14

CPC分类号： H02P21/06 ,  H02H7/1227 ,  H02P29/032

摘要： According to the present invention, an electrical power conversion system includes: a motor; an inverter circuit that outputs three-phase (U-phase, V-phase, W-phase) alternating currents to the motor; a current sensor that detects each of the three-phase alternating currents; and a control circuit that controls the inverter circuit based on a torque command value and values detected by the current sensor, so that the three-phase alternating currents outputted from the inverter circuit are formed as sine waves; and wherein the control circuit includes: a current component extraction unit that, based on the values detected by the current sensor, for each phase, extracts current components superimposed upon each of three-phase alternating currents; and an AC current abnormality detection unit that detects abnormality of an AC current flowing to the motor, based on the phases of the current components for any two phases among the three-phase alternating currents.

摘要翻译： 根据本发明，电力转换系统包括：电动机; 向电动机输出三相（U相，V相，W相）交流电流的逆变器电路; 检测三相交流电流的电流传感器; 以及控制电路，其基于转矩指令值和由电流传感器检测的值来控制逆变器电路，使得从逆变器电路输出的三相交流电流形成为正弦波; 并且其中所述控制电路包括：电流分量提取单元，其基于由所述电流传感器检测的每个相位的值提取叠加在每个三相交流电流上的电流分量; 以及AC电流异常检测单元，其基于三相交流电中的任何两相的电流分量的相位来检测流向电动机的AC电流的异常。

公开(公告)号：US08471507B2

公开(公告)日：2013-06-25

申请号：US13171582

申请日：2011-06-29

申请人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Hirokazu Matsui

发明人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Hirokazu Matsui

IPC分类号： H02P6/14 ,  H02M5/40

CPC分类号： H02P21/06 ,  H02H7/1227 ,  H02P29/032

摘要： According to the present invention, an electrical power conversion system includes: a motor; an inverter circuit that outputs three-phase (U-phase, V-phase, W-phase) alternating currents to the motor; a current sensor that detects each of the three-phase alternating currents; and a control circuit that controls the inverter circuit based on a torque command value and values detected by the current sensor, so that the three-phase alternating currents outputted from the inverter circuit are formed as sine waves; and wherein the control circuit includes: a current component extraction unit that, based on the values detected by the current sensor, for each phase, extracts current components superimposed upon each of three-phase alternating currents; and an AC current abnormality detection unit that detects abnormality of an AC current flowing to the motor, based on the phases of the current components for any two phases among the three-phase alternating currents.

摘要翻译： 根据本发明，电力转换系统包括：电动机; 向电动机输出三相（U相，V相，W相）交流电流的逆变器电路; 检测三相交流电流的电流传感器; 以及控制电路，其基于转矩指令值和由电流传感器检测的值来控制逆变器电路，使得从逆变器电路输出的三相交流电流形成为正弦波; 并且其中所述控制电路包括：电流分量提取单元，其基于由所述电流传感器检测的每个相位的值提取叠加在每个三相交流电流上的电流分量; 以及AC电流异常检测单元，其基于三相交流电中的任何两相的电流分量的相位来检测流向电动机的AC电流的异常。

公开(公告)号：US20120020136A1

公开(公告)日：2012-01-26

申请号：US13201139

申请日：2010-02-19

申请人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Seiji Funaba ,  Masashge Tsuji

发明人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Seiji Funaba ,  Masashge Tsuji

IPC分类号： H02M7/48

CPC分类号： H02M7/48 ,  B60L11/1851 ,  H02M2001/322 ,  Y02T10/7005 ,  Y02T10/705

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08791681B2

公开(公告)日：2014-07-29

申请号：US13201139

申请日：2010-02-19

申请人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Seiji Funaba ,  Masashige Tsuji

发明人： Yoshio Akaishi ,  Yasuo Noto ,  Koichi Yahata ,  Seiji Funaba ,  Masashige Tsuji

IPC分类号： H02M3/156

CPC分类号： H02M7/48 ,  B60L11/1851 ,  H02M2001/322 ,  Y02T10/7005 ,  Y02T10/705

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20140085762A1

公开(公告)日：2014-03-27

申请号：US14119091

申请日：2012-05-21

申请人： Hiroki Shimano ,  Koichi Yahata ,  Yoshio Akaishi ,  Yasuo Noto

发明人： Hiroki Shimano ,  Koichi Yahata ,  Yoshio Akaishi ,  Yasuo Noto

IPC分类号： H03K17/08

CPC分类号： H03K17/08 ,  H02M1/08 ,  H02M1/32 ,  H02M7/5387

摘要： An inverter drive device includes a drive circuit that outputs a gate voltage signal of a power semiconductor element; and a Zener clamping protection circuit that acquires an emitter electrode side voltage of the power semiconductor element, and, if that voltage is greater than a predetermined voltage value, performs clamping of the gate voltage of the drive circuit after a predetermined time interval has elapsed from the acquisition of the emitter electrode side voltage. The Zener clamping protection circuit includes a latch circuit that, after the emitter electrode side voltage has been acquired, continues the clamping of the gate voltage by the Zener clamping protection circuit during an interval.

摘要翻译： 逆变器驱动装置包括：输出功率半导体元件的栅极电压信号的驱动电路; 以及获取功率半导体元件的发射极侧电压的齐纳钳位保护电路，如果该电压大于预定电压值，则在经过预定时间间隔之后，驱动电路的栅极电压被钳位 采集发射极电极侧电压。 齐纳钳位保护电路包括一个锁存电路，其在获得发射极电极侧电压之后，在间隔期间通过齐纳钳位保护电路继续钳位栅极电压。

公开(公告)号：US09065443B2

公开(公告)日：2015-06-23

申请号：US14119091

申请日：2012-05-21

申请人： Hiroki Shimano ,  Koichi Yahata ,  Yoshio Akaishi ,  Yasuo Noto

发明人： Hiroki Shimano ,  Koichi Yahata ,  Yoshio Akaishi ,  Yasuo Noto

IPC分类号： H02M1/32 ,  H03K17/08 ,  H02M1/08 ,  H02M7/5387

CPC分类号： H03K17/08 ,  H02M1/08 ,  H02M1/32 ,  H02M7/5387

摘要： An inverter drive device includes a drive circuit that outputs a gate voltage signal of a power semiconductor element; and a Zener clamping protection circuit that acquires an emitter electrode side voltage of the power semiconductor element, and, if that voltage is greater than a predetermined voltage value, performs clamping of the gate voltage of the drive circuit after a predetermined time interval has elapsed from the acquisition of the emitter electrode side voltage. The Zener clamping protection circuit includes a latch circuit that, after the emitter electrode side voltage has been acquired, continues the clamping of the gate voltage by the Zener clamping protection circuit during an interval.

摘要翻译： 逆变器驱动装置包括：输出功率半导体元件的栅极电压信号的驱动电路; 以及获取功率半导体元件的发射极侧电压的齐纳钳位保护电路，如果该电压大于预定电压值，则在经过预定时间间隔之后，驱动电路的栅极电压被钳位 采集发射极电极侧电压。 齐纳钳位保护电路包括一个锁存电路，其在获得发射极电极侧电压之后，在间隔期间通过齐纳钳位保护电路继续钳位栅极电压。

公开(公告)号：US20130088279A1

公开(公告)日：2013-04-11

申请号：US13638372

申请日：2011-04-01

申请人： Hiroki Shimano ,  Yasuo Noto ,  Koichi Yahata ,  Seiji Funaba ,  Yoshio Akaishi

发明人： Hiroki Shimano ,  Yasuo Noto ,  Koichi Yahata ,  Seiji Funaba ,  Yoshio Akaishi

IPC分类号： H03K17/284

CPC分类号： H03K17/284 ,  H02M1/08 ,  H03K17/163 ,  H03K2217/0036

摘要： The present invention provides a power converter including a power semiconductor device, a driver circuit section that outputs a driving signal for driving the power semiconductor device, a buffer circuit section that includes a PNP transistor and an NPN transistor and that outputs a gate voltage for driving the power semiconductor device, a first delay circuit section that receives the driving signal and that generates a first delay signal on the basis of the received driving signal, a first MOSFET that has a drain electrode connected with the output of the buffer circuit section and that is driven on the basis of the first delay signal. A current flows through the buffer circuit section and the first MOSFET on the basis of the received driving signal, the first delay circuit section outputs the first delay signal after the buffer circuit section exits the transient state and turns on, and the gate voltage is applied to the power semiconductor device from the buffer circuit section to turn the power semiconductor device on by the switching operation of the first MOSFET based on the first delay signal.

摘要翻译： 本发明提供了一种功率转换器，包括功率半导体器件，输出用于驱动功率半导体器件的驱动信号的驱动器电路部分，包括PNP晶体管和NPN晶体管的缓冲电路部分，并且输出用于驱动的​​栅极电压 所述功率半导体器件，接收所述驱动信号并基于所接收的驱动信号产生第一延迟信号的第一延迟电路部，具有与所述缓冲电路部的输出连接的漏电极的第一MOSFET，以及与所述缓冲电路部的输出连接的第一MOSFET， 基于第一延迟信号被驱动。 A电流根据接收到的驱动信号流过缓冲电路部分和第一MOSFET，第一延迟电路部分在缓冲电路部分退出瞬态之后输出第一延迟信号并导通，施加栅极电压 从缓冲电路部分到功率半导体器件，通过基于第一延迟信号的第一MOSFET的开关操作使功率半导体器件导通。

公开(公告)号：US08947838B2

公开(公告)日：2015-02-03

申请号：US13213274

申请日：2011-08-19

申请人： Hiroyuki Yamai ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

发明人： Hiroyuki Yamai ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

IPC分类号： H02H5/04 ,  H02H7/08 ,  H02P29/02

CPC分类号： G01R31/02 ,  H02M7/537 ,  H02M2001/0009 ,  H02P29/032

摘要： According to the present invention, an overcurrent fault detection device includes: an inverter converting DC current to three-phase AC currents for driving a motor; a DC voltage detector; phase current detectors; a rotational position detector that detects a rotational angle of the motor; a control circuit that controls a gate drive circuit, which controls the inverter at every predetermined cycle, based upon the phase current values, a motor rotational angle detection value, and a speed command or a torque command from a higher-order control device; and a first decision-making circuit that detects an overcurrent based upon the phase current values at every predetermined cycle, wherein: the first decision-making circuit determines whether or not the phase current values exceed a predetermined amplitude threshold value by frequency detection for any of the phase current values exceeding the predetermined amplitude threshold value, and determines that an overcurrent has occurred upon detecting the frequency.

摘要翻译： 根据本发明，过电流故障检测装置包括：逆变器，将直流电流转换成用于驱动电动机的三相交流电流; 直流电压检测器; 相电流检测器; 旋转位置检测器，其检测所述电动机的旋转角度; 控制电路，其基于来自上位控制装置的相电流值，电动机旋转角度检测值，速度指令或转矩指令，控制以每隔一定周期控制逆变器的栅极驱动电路; 以及第一决策电路，其基于每个预定周期的相电流值来检测过电流，其中：所述第一判定电路通过频率检测来确定所述相电流值是否超过预定振幅阈值 相电流值超过预定振幅阈值，并且在检测到频率时确定已经发生过电流。

公开(公告)号：US20120050922A1

公开(公告)日：2012-03-01

申请号：US13213274

申请日：2011-08-19

申请人： Hiroyuki YAMAI ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

发明人： Hiroyuki YAMAI ,  Yasuo Noto ,  Yoshio Akaishi ,  Kohei Myoen

IPC分类号： H02H7/08

CPC分类号： G01R31/02 ,  H02M7/537 ,  H02M2001/0009 ,  H02P29/032

摘要： According to the present invention, an overcurrent fault detection device includes: an inverter converting DC current to three-phase AC currents for driving a motor; a DC voltage detector; phase current detectors; a rotational position detector that detects a rotational angle of the motor; a control circuit that controls a gate drive circuit, which controls the inverter at every predetermined cycle, based upon the phase current values, a motor rotational angle detection value, and a speed command or a torque command from a higher-order control device; and a first decision-making circuit that detects an overcurrent based upon the phase current values at every predetermined cycle, wherein: the first decision-making circuit determines whether or not the phase current values exceed a predetermined amplitude threshold value by frequency detection for any of the phase current values exceeding the predetermined amplitude threshold value, and determines that an overcurrent has occurred upon detecting the frequency.

摘要翻译： 根据本发明，过电流故障检测装置包括：逆变器，将直流电流转换成用于驱动电动机的三相交流电流; 直流电压检测器; 相电流检测器; 旋转位置检测器，其检测所述电动机的旋转角度; 控制电路，其基于来自上位控制装置的相电流值，电动机旋转角度检测值，速度指令或转矩指令，控制以每隔一定周期控制逆变器的栅极驱动电路; 以及第一决策电路，其基于每个预定周期的相电流值来检测过电流，其中：所述第一判定电路通过频率检测来确定所述相电流值是否超过预定振幅阈值 相电流值超过预定振幅阈值，并且在检测到频率时确定已经发生过电流。

公开(公告)号：US07561429B2

公开(公告)日：2009-07-14

申请号：US11938851

申请日：2007-11-13

申请人： Koichi Yahata ,  Seigo Yukutake ,  Yoshio Akaishi

发明人： Koichi Yahata ,  Seigo Yukutake ,  Yoshio Akaishi

IPC分类号： H05K7/20

CPC分类号： H02M7/003 ,  H01L2224/45124 ,  H01L2224/45147 ,  H01L2224/48091 ,  H01L2224/48139 ,  H01L2224/49175 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/30107 ,  H01L2924/3025 ,  H01L2924/00 ,  H01L2924/00014 ,  H01L2924/00011

摘要： A power converter unit comprises: a metal casing; a power module mounted in the metal casing and equipped with two or more power semiconductor devices; a metal plate disposed on the power module and fixed to the metal casing; a heat dissipating sheet disposed on the metal plate; and a drive circuit board disposed on the heat dissipating sheet and is equipped with a control circuit for controlling the power semiconductor devices.

摘要翻译： 电力转换器单元包括：金属外壳; 电源模块，安装在金属外壳中并配备有两个或多个功率半导体器件; 金属板，设置在电源模块上并固定到金属外壳; 设置在所述金属板上的散热片; 以及设置在散热片上的驱动电路板，并且配备有用于控制功率半导体器件的控制电路。