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31. 发明申请

US20110121661A1 POWER CONVERSION DEVICE 失效
标题翻译：电源转换器件
公开(公告)号：US20110121661A1
公开(公告)日：2011-05-26
申请号：US13055153
申请日：2009-07-23
申请人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
发明人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
IPC分类号： H02M3/18
CPC分类号： G05F1/67 , H02J7/345 , H02J7/35 , H02M3/07 , Y02E10/58
摘要： In a power conversion device which performs DC/DC conversion, an inverter circuit (20), which is formed of one or more single-phase inverters (20a) and (20b) connected in series to each other, is connected in series to a DC power supply (1) in its subsequent stage. In further subsequent stage, a smoothing capacitor (6) connected to the inverter circuit (20) via a rectifier diode (5), and a shorting switch (4) which bypasses the smoothing capacitor (6) are provided. The shorting switch (4) is switched ON to charge capacitors (25) and (35) included in the single-phase inverter (20a) and (20b), respectively, whereas the shorting switch (4) is switched OFF to discharge the capacitors (25) and (35), whereby the voltage of the smoothing capacitor (6) is controlled.
摘要翻译：在进行DC / DC转换的电力变换装置中，由串联连接的一个以上的单相逆变器（20a）和（20b）构成的逆变器电路（20）与直流电源（1）在其后续阶段。在后续的阶段中，设置经由整流二极管（5）与逆变器电路（20）连接的平滑电容器（6）和绕过平滑电容器（6）的短路开关（4）。短路开关（4）接通，分别对包含在单相逆变器（20a）和（20b）中的电容器（25）和（35）充电，而短路开关（4）断开以对电容器（25）和（35），从而控制平滑电容器（6）的电压。

32. 发明申请

US20120092915A1 POWER CONVERSION APPARATUS 有权
标题翻译：功率转换装置
公开(公告)号：US20120092915A1
公开(公告)日：2012-04-19
申请号：US13376517
申请日：2009-11-26
申请人： Tatsuya Okuda , Akihiko Iwata , Kenji Fujiwara , Kikuo Izumi
发明人： Tatsuya Okuda , Akihiko Iwata , Kenji Fujiwara , Kikuo Izumi
IPC分类号： H02M7/5387
CPC分类号： H02M7/487 , H02M7/49 , H02M7/501
摘要： A power conversion apparatus including: a three-level inverter including bridge circuits each including a first semiconductor switching device and a second semiconductor switching device connected in series, the bridge circuits being connected to a positive terminal and a negative terminal of a DC power supply, and switch circuits having bidirectional characteristics and connected to respective AC output terminals of the bridge circuits which are the connection points between the first semiconductor switching devices and the second semiconductor switching devices, and to an intermediate potential point of the DC power supply; and single-phase inverters each including a plurality of semiconductor switching devices and respectively connected in series to the AC output terminals of the bridge circuits. The sum of an output voltage of the three-level inverter and output voltages of the single-phase inverters is supplied to a load.
摘要翻译：一种电力转换装置，包括：三电平逆变器，包括各自包括串联连接的第一半导体开关装置和第二半导体开关装置的桥式电路，所述桥式电路与直流电源的正极端子和负极端子连接，和具有双向特性的开关电路，并连接到作为第一半导体开关器件和第二半导体开关器件之间的连接点的桥接电路的各个AC输出端子以及直流电源的中间电位点; 以及各自包括多个半导体开关器件并且分别串联连接到桥接电路的AC输出端子的单相逆变器。三相逆变器的输出电压和单相逆变器的输出电压的和被提供给负载。

33. 发明授权

US08754549B2 Power conversion device 失效
标题翻译：电源转换装置
公开(公告)号：US08754549B2
公开(公告)日：2014-06-17
申请号：US13055153
申请日：2009-07-23
申请人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
发明人： Tomoyuki Kawakami , Akihiko Iwata , Tatsuya Okuda
IPC分类号： H02M3/18 , H02J7/35 , G05F1/67 , H02M3/07 , H02J7/34
CPC分类号： G05F1/67 , H02J7/345 , H02J7/35 , H02M3/07 , Y02E10/58
摘要： In a power conversion device which performs DC/DC conversion, an inverter circuit (20), which is formed of one or more single-phase inverters (20a) and (20b) connected in series to each other, is connected in series to a DC power supply (1) in its subsequent stage. In further subsequent stage, a smoothing capacitor (6) connected to the inverter circuit (20) via a rectifier diode (5), and a shorting switch (4) which bypasses the smoothing capacitor (6) are provided. The shorting switch (4) is switched ON to charge capacitors (25) and (35) included in the single-phase inverter (20a) and (20b), respectively, whereas the shorting switch (4) is switched OFF to discharge the capacitors (25) and (35), whereby the voltage of the smoothing capacitor (6) is controlled.
摘要翻译：在进行DC / DC转换的电力变换装置中，由串联连接的一个以上的单相逆变器（20a）和（20b）构成的逆变器电路（20）与直流电源（1）在其后续阶段。在后续的阶段中，设置经由整流二极管（5）与逆变器电路（20）连接的平滑电容器（6）和绕过平滑电容器（6）的短路开关（4）。短路开关（4）接通，分别对包含在单相逆变器（20a）和（20b）中的电容器（25）和（35）充电，而短路开关（4）断开以对电容器（25）和（35），从而控制平滑电容器（6）的电压。

34. 发明申请

US20120039045A1 POWER MODULE AND METHOD FOR DETECTING INSULATION DEGRADATION THEREOF 审中-公开
标题翻译：用于检测其绝缘降解的功率模块和方法
公开(公告)号：US20120039045A1
公开(公告)日：2012-02-16
申请号：US13265446
申请日：2010-04-01
申请人： Xiaohong Yin , Takashi Nishimura , Kei Yamamoto , Kazuhiro Tada , Tatsuya Okuda , Takeshi Oi
发明人： Xiaohong Yin , Takashi Nishimura , Kei Yamamoto , Kazuhiro Tada , Tatsuya Okuda , Takeshi Oi
IPC分类号： H05K7/20
CPC分类号： G01R31/129 , H01L25/072 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2924/01004 , H01L2924/01077 , H01L2924/01087 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
摘要： A method and device for detecting insulation degradation of a power module, which detects, in advance, degradation of an insulating sheet based on a current change immediately before breakdown of an insulation characteristic from a current value of a current flowing through the insulating sheet, thereby detecting a failure of a power module caused by the degradation of insulation. The device includes: a current detector sampling and detecting a current value of a current flowing through an insulating sheet of the power module at a predetermined time interval; a calculator determining, based on the current value, a state in which the insulation characteristic of the insulating sheet is so degraded that the breakdown is imminent, and outputting a degradation determination result of YES when it is determined that the insulating sheet is in the state immediately before the breakdown; a current storage storing a current value i(n−1) at a previous sampling time point; and an alarm generating an alarm in response to the degradation determination result of YES. The calculator outputs the degradation determination result of YES when a present current value in exceeds ten times the previous current value i(n−1).
摘要翻译：一种用于检测功率模块的绝缘劣化的方法和装置，其预先根据绝缘特性从流过绝缘片的电流的当前值立即根据电流变化检测绝缘片，从而检测由绝缘劣化引起的电源模块的故障。该装置包括：电流检测器，以预定的时间间隔对流过功率模块的绝缘片的电流的电流值进行采样和检测; 基于当前值，计算器确定绝缘片的绝缘特性劣化的状态，使得击穿即将发生，并且当确定绝缘片处于该状态时，输出劣化判定结果为“是” 紧急故障前; 存储在先前采样时间点的当前值i（n-1）的当前存储器; 以及响应于劣化判定结果为“是”而产生警报的报警。当当前值超过前一个当前值i（n-1）的十倍时，计算器输出劣化判定结果为“是”。

35. 发明授权

US08982588B2 Method and an apparatus for controlling the output voltage of a boost converter composed of plural bridge devices 有权
标题翻译：用于控制由多个桥式装置构成的升压转换器的输出电压的方法和装置
公开(公告)号：US08982588B2
公开(公告)日：2015-03-17
申请号：US13259911
申请日：2010-04-22
申请人： Gustavo Buiatti , Tomoyuki Kawakami , Tatsuya Okuda , Nicolas Voyer
发明人： Gustavo Buiatti , Tomoyuki Kawakami , Tatsuya Okuda , Nicolas Voyer
IPC分类号： H02M3/07 , H02M3/158 , H02M1/00 , H02M7/483 , H02J3/38
CPC分类号： H02M3/1582 , H02J3/383 , H02M3/07 , H02M2001/007 , H02M2007/4835 , Y02E10/563
摘要： A method and apparatus for controlling the output voltage of a boost converter including a number n of bridge devices connected in series, each bridge device including plural switches and a capacitor. The method and apparatus provide control of the switches according to a selected periodical matrix pattern including a number N of time intervals, N being a positive integer greater than 2, and in that in each time interval, the voltage between the input and the output of each ith bridge device with i from one to n, is equal to one of a null value, a number ki times a positive value, and minus the number ki times the positive value, the positive value being the result of the division of the output voltage of the boost converter including the n bridge devices by the number of time intervals N of the periodical matrix pattern.
摘要翻译：一种用于控制升压转换器的输出电压的方法和装置，包括串联连接的数量为n个的桥式装置，每个桥式装置包括多个开关和电容器。该方法和装置根据包括N个时间间隔的选定的周期性矩阵模式提供开关的控制，N是大于2的正整数，并且在每个时间间隔内，输入和输出之间的电压 i从i到n的每个第i个桥接器件等于一个空值，一个数字ki乘以一个正值，减去数字ki乘以正值，正值是输出分频的结果包括n个桥接器件的升压转换器的电压乘以周期矩阵模式的时间间隔N的数量。

36. 发明申请

US20100213989A1 GATE DRIVING CIRCUIT 有权
标题翻译：门驱动电路
公开(公告)号：US20100213989A1
公开(公告)日：2010-08-26
申请号：US12681515
申请日：2008-09-03
申请人： Hiroshi Nakatake , Masaru Fuku , Tatsuya Okuda , Yoshikazu Tsunoda
发明人： Hiroshi Nakatake , Masaru Fuku , Tatsuya Okuda , Yoshikazu Tsunoda
IPC分类号： H03K3/353
CPC分类号： H02M1/08 , H03K17/0406 , H03K17/0412 , H03K17/162 , H03K2217/0036
摘要： To obtain a gate driving circuit in which rising of a constant current of a constant current circuit is fast and power saving is achieved, the gate driving circuit includes: a constant current driving circuit (28) for supplying a constant current; a gate terminal of a power semiconductor element (1), which is connected to an output terminal of the constant current driving circuit; a comparator (22) for comparing a voltage at the gate terminal with a predetermined voltage value and outputting a signal indicating that the voltage is higher than the predetermined voltage value; and a driving control section (20) for increasing a current from the constant current driving circuit in response to a signal for turning on the power semiconductor element, and reducing the current from the constant current driving circuit in response to the signal from the comparator.
摘要翻译：为了获得恒定电流电路的恒定电流的上升快速并且实现功率节省的栅极驱动电路，栅极驱动电路包括：用于提供恒定电流的恒定电流驱动电路（28）; 功率半导体元件（1）的栅极端子，连接到恒流驱动电路的输出端子; 比较器（22），用于将栅极端子处的电压与预定电压值进行比较，并输出表示电压高于预定电压值的信号; 以及用于响应于用于接通功率半导体元件的信号而增加来自恒定电流驱动电路的电流并且响应于来自比较器的信号而减小来自恒定电流驱动电路的电流的驱动控制部分（20）。

37. 发明授权

US08604757B2 DC/DC power conversion apparatus 有权
标题翻译： DC / DC电力转换装置
公开(公告)号：US08604757B2
公开(公告)日：2013-12-10
申请号：US13520914
申请日：2010-11-29
申请人： Tatsuya Okuda , Hiroshi Ito
发明人： Tatsuya Okuda , Hiroshi Ito
IPC分类号： G05F1/613 , G05F1/618
CPC分类号： H02M3/158
摘要： A DC/DC power conversion apparatus includes a reactor connected to a DC power supply and a DC voltage conversion section connected to the reactor. The DC voltage conversion section includes a plurality of switching devices, a charge-discharge capacitor which is charged or discharged by ON/OFF operations of the switching devices, a plurality of diodes which provide a charging route and a discharging route for the charge-discharge capacitor. The DC/DC power conversion apparatus also includes a smoothing capacitor on an output side, which is connected to the DC voltage conversion section and including a plurality of voltage division capacitors connected in series to each other, and a switching device for voltage equalization provided on a connection line provided between the negative terminal of the charge-discharge capacitor and a connection point between the voltage division capacitors.
摘要翻译： DC / DC电力转换装置包括连接到DC电源的电抗器和连接到电抗器的DC电压转换部。直流电压转换部包括多个开关器件，通过开关器件的导通/截止操作而被充电或放电的充放电电容器，提供用于充电放电的充电路径和放电路径的多个二极管电容器。 DC / DC电力转换装置还包括在输出侧的平滑电容器，其连接到DC电压转换部分并且包括彼此串联连接的多个分压电容器，以及用于电压均衡的开关装置，设置在充放电电容器的负极和分压电容器之间的连接点之间的连接线。

38. 发明申请

US20130021011A1 DC/DC POWER CONVERSION APPARATUS 有权
标题翻译： DC / DC电源转换器
公开(公告)号：US20130021011A1
公开(公告)日：2013-01-24
申请号：US13520914
申请日：2010-11-29
申请人： Tatsuya Okuda , Hiroshi Ito
发明人： Tatsuya Okuda , Hiroshi Ito
IPC分类号： G05F1/00
CPC分类号： H02M3/158
摘要： A DC/DC power conversion apparatus includes a reactor connected to a DC power supply and a DC voltage conversion section connected to the reactor. The DC voltage conversion section includes a plurality of switching devices, a charge-discharge capacitor which is charged or discharged by ON/OFF operations of the switching devices, a plurality of diodes which provide a charging route and a discharging route for the charge-discharge capacitor. The DC/DC power conversion apparatus also includes a smoothing capacitor on an output side, which is connected to the DC voltage conversion section and including a plurality of voltage division capacitors connected in series to each other, and a switching device for voltage equalization provided on a connection line provided between the negative terminal of the charge-discharge capacitor and a connection point between the voltage division capacitors.
摘要翻译： DC / DC电力转换装置包括连接到DC电源的电抗器和连接到电抗器的DC电压转换部。直流电压转换部包括多个开关器件，通过开关器件的导通/截止操作而被充电或放电的充放电电容器，提供用于充电放电的充电路径和放电路径的多个二极管电容器。 DC / DC电力转换装置还包括在输出侧的平滑电容器，其连接到DC电压转换部分并且包括彼此串联连接的多个分压电容器，以及用于电压均衡的开关装置，设置在充放电电容器的负极和分压电容器之间的连接点之间的连接线。

39. 发明申请

US20120038330A1 METHOD AND AN APPARATUS FOR CONTROLLING THE OUTPUT VOLTAGE OF A BOOST CONVERTER COMPOSED OF PLURAL BRIDGE DEVICES 有权
标题翻译：用于控制组合式桥式装置的升压转换器的输出电压的方法和装置
公开(公告)号：US20120038330A1
公开(公告)日：2012-02-16
申请号：US13259911
申请日：2010-04-22
申请人： Gustavo Buiatti , Tomoyuki Kawakami , Tatsuya Okuda , Nicolas Voyer
发明人： Gustavo Buiatti , Tomoyuki Kawakami , Tatsuya Okuda , Nicolas Voyer
IPC分类号： G05F1/10
CPC分类号： H02M3/1582 , H02J3/383 , H02M3/07 , H02M2001/007 , H02M2007/4835 , Y02E10/563
摘要： The present invention concerns an apparatus for controlling the output voltage of a boost converter composed of a number n of bridge devices (B, B2, B3) connected in series, each bridge device being composed of plural switches (S11, S12, S21, S22, S31, S32) and a capacitor (C1, C2, C3). The apparatus comprises means for controlling the switches according to one periodical pattern being decomposed in a number N of time intervals and in that in each time interval, the voltage between the input and the output (B, B2, B3) of each ith bridge device with i from one to n, is equal to a null value, or a number ki times a positive value, or minus the number ki times the positive value, the positive value being the result of the division of the output voltage of the boost converter composed of n bridge (B1, B2, B3) devices by the number of time intervals of the periodical pattern.
摘要翻译：本发明涉及一种用于控制由数个n个串联连接的桥接器件（B，B2，B3）组成的升压转换器的输出电压的装置，每个桥接器件由多个开关组成（S11，S12，S21，S22 ，S31，S32）和电容器（C1，C2，C3）。该装置包括用于根据在N个时间间隔内分解的一个周期性模式来控制开关的装置，并且在每个时间间隔中，每个第i个桥接器件的输入和输出（B，B2，B3）之间的电压 i从1到n等于零值，或数字ki乘以正值，或减去正数的ki倍数，正值是升压转换器输出电压除法的结果由n个桥（B1，B2，B3）设备通过周期性模式的时间间隔数量组成。

40. 发明授权

US07675763B2 Semiconductor power converter apparatus 有权
标题翻译：半导体功率转换装置
公开(公告)号：US07675763B2
公开(公告)日：2010-03-09
申请号：US11633467
申请日：2006-12-05
申请人： Tatsuya Okuda , Takuya Michinaka
发明人： Tatsuya Okuda , Takuya Michinaka
IPC分类号： H02M5/42 , H02M7/04 , H02M7/68
CPC分类号： H02M7/538 , H01L23/34 , H01L25/18 , H01L2924/0002 , H02M1/32 , H03K17/0828 , H03K17/127 , H03K17/18 , H03K2017/0806 , H01L2924/00
摘要： Even when one of IGBTs fails in a semiconductor power converter apparatus in which a plurality of semiconductor elements are connected in parallel, the remaining IGBT(s) is prevented from failing with a simple circuit configuration. The semiconductor power converter apparatus includes: a semiconductor power conversion circuit in which a first IGBT having a temperature sensing unit and a second IGBT having a current sensing unit are connected in parallel, for causing the first and second semiconductor elements to perform switching operations; an overheat protection circuit for performing overheat protection for the first and second IGBTs based on temperature information obtained from the temperature sensing unit of the first IGBT; and an overcurrent protection circuit for performing overcurrent protection for the first and second IGBTs based on current information obtained from the current sensing unit of the second IGBT.
摘要翻译：即使在其中多个半导体元件并联连接的半导体功率转换装置中的IGBT之一失效，也可以通过简单的电路结构来防止剩余的IGBT失效。半导体功率转换装置包括：半导体功率转换电路，其中具有温度感测单元的第一IGBT和具有电流感测单元的第二IGBT并联连接，用于使第一和第二半导体元件执行开关操作; 一个过热保护电路，用于根据从第一IGBT的温度检测单元得到的温度信息，对第一和第二IGBT进行过热保护; 以及基于从第二IGBT的电流感测单元获得的电流信息，对第一IGBT和第二IGBT进行过电流保护的过电流保护电路。

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