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11. 发明专利

JPH0365065A INVERTER APPARATUS 失效
公开(公告)号：JPH0365065A
公开(公告)日：1991-03-20
申请号：JP19662089
申请日：1989-07-31
申请人： FUJI ELECTRIC CO LTD
发明人： YOSHIDA MASAKAZU , OGAWA SHOGO , TAKUBO HIROSHI
IPC分类号： H02M7/48 , H02M7/5387
摘要： PURPOSE:To simply prevent the oscillation and malfunction due to electromagnetic induction by reversing the power collector terminal and the power emitter terminal of a power transistor module according as they are used for the upper arm or lower arm of an apparatus. CONSTITUTION:Upper and lower arms are respectively constituted from a transistor module 1A, in which driving terminals 4, 5 positioned on one side of the module, a power collector terminal 2 and a power emitter terminal 3 are arranged in that order, and a transistor module 1 having the same rating and electric characteristics as those of the transistor module 1A, in which module 1 the driving terminals 4, 5, power emitter terminal 3 and power collector terminal 2 are arranged in that order, while the driving terminals 4, 5 of respective transistor modules 1A, 1 are so arranged as to be mutually on the same side and a plus power bar 7, a minus power bar 8 and an output bar 9 are further formed on the side opposite to the driving terminal 4, 5 side. In this manner, an apparatus is not easily subjected to the electromagnetic induction from power bus bar and the power transistor can be operated safely.

12. 发明专利

JP2013078258A Gate drive method of semiconductor element 有权
标题翻译：半导体元件的门驱动方法
公开(公告)号：JP2013078258A
公开(公告)日：2013-04-25
申请号：JP2012257649
申请日：2012-11-26
申请人： Fuji Electric Co Ltd , 富士電機株式会社
发明人： YAMASHIRO HIROSUKE , TAKUBO HIROSHI
IPC分类号： H02M1/08 , H03K17/16 , H03K17/56 , H03K17/687
摘要： PROBLEM TO BE SOLVED: To improve the trade-off characteristics between noise and switching loss occurring at the time of turn-off switching.SOLUTION: When the semiconductor element is turned off, until a voltage between a collector and an emitter of the semiconductor element reaches a DC voltage applied between the collector and the emitter, the change ratio of the voltage between the collector and the emitter is increased, whereas after the voltage between the collector and the emitter of the semiconductor element reaches the DC voltage, the change ratio of the voltage between the collector and the emitter is decreased.
摘要翻译：要解决的问题：提高在关断切换时发生的噪声和开关损耗之间的权衡特性。解决方案：当半导体元件关闭时，直到半导体元件的集电极和发射极之间的电压达到在集电极和发射极之间施加的直流电压，集电极和发射极之间的电压变化率而在半导体元件的集电极和发射极之间的电压达到直流电压之后，集电极和发射极之间的电压变化率降低。版权所有（C）2013，JPO＆INPIT

13. 发明专利

JPH09107673A DRIVE CIRCUIT FOR POWER CONVERSION APPARATUS 失效
公开(公告)号：JPH09107673A
公开(公告)日：1997-04-22
申请号：JP26130295
申请日：1995-10-09
申请人： FUJI ELECTRIC CO LTD
发明人： TAKUBO HIROSHI
IPC分类号： H02M1/08 , H02M7/5387 , H02P27/06 , H03K17/16 , H03K17/73 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To reduce a switching noise without changing a carrier frequency, e.g. in a PWM control operation in a power conversion apparatus which is constituted of a voltage-controlled self-arc-extinguishing semiconductor element. SOLUTION: Drive circuits 50, 60 for a self-arc-extinguishing semiconductor element are formed in such a way that an ON-OFF signal and a changeover signal, for the element, which are instructed from the outside are input and that the rise time and the fall time of a gate voltage for the self-arc- extinguishing semiconductor element are changed over by the changeover signal.

14. 发明专利

JPH0947015A DRIVE CIRCUIT FOR SELF-EXTINGUISHING SEMICONDUCTOR ELEMENT 失效
公开(公告)号：JPH0947015A
公开(公告)日：1997-02-14
申请号：JP26130395
申请日：1995-10-09
申请人： FUJI ELECTRIC CO LTD
发明人： TAKUBO HIROSHI , MORITA MASATAKA
IPC分类号： H02M1/08
摘要： PROBLEM TO BE SOLVED: To shorten the operational time lag behind an on/off signal by improving the characteristics of drive circuit for a self-extinguishing semiconductor element, e.g. an IGBT. SOLUTION: By means of one-shot circuits 41, 42 based on an on/off signal and a switching circuit 43, switching is performed slowly through a resistor 12 having high resistance when an IGBT 25 is turned on and after the collector current is raised, switching is performed through a resistor 11 having low resistance. At the time of turn off, a resistor 14 having low resistance is employed initially in order to suppress the operational time lag behind off signal. When the IGBT 25 begins to be turned off, switching is performed through a resistor 13 having high resistance.

15. 发明专利

JP2580803B2 失效
公开(公告)号：JP2580803B2
公开(公告)日：1997-02-12
申请号：JP28402789
申请日：1989-10-31
申请人： FUJI ELECTRIC CO LTD
发明人： OGAWA SHOGO , YOSHIDA MASAKAZU , TAKUBO HIROSHI
IPC分类号： H01L25/07 , H01L25/18 , H02M1/00 , H02M1/08 , H02M7/537

16. 发明专利

JPH07213067A CONTROL CIRCUIT FOR PWM CONVERTER 失效
公开(公告)号：JPH07213067A
公开(公告)日：1995-08-11
申请号：JP550494
申请日：1994-01-24
申请人： FUJI ELECTRIC CO LTD
发明人： TAKUBO HIROSHI , MOMOZU TOSHIRO
IPC分类号： H02M7/219 , H02M7/12 , H02M7/48
摘要： PURPOSE:To provide a control circuit which performs a control operation stably without a transformer for step down of a power-supply voltage or without increasing the control factor by a method wherein a reactive-current-component instruction value corresponding to the electric power to be converted is operated and a PWM converter is operated at the power factor which has been determined from the reactive-current-component instruction value and an active-current-component instruction value. CONSTITUTION:A reactive-current-instruction-value arithmetic circuit 42 outputs a reactive- current instruction value corresponding to the magnitude of the converter power which is input from a converter-power arithmetic circuit 41. A current-instruction-value composition circuit 43 combines the output value of an active-current-instruction-value arithmetic circuit 19 and the output value of the reactive-current-instruction-value arithmetic circuit 42, and it outputs an R-phase-current instruction value. Then, the difference between the R-phase- current instruction value and the detection value of an R-phase-current detector is operated by an adder 31, and an R-phase-voltage instruction signal is generated by an R-phase-current controller 23. In a similar manner, a T-phase-voltage instruction signal is generated by a T-phase-current controller 24, an S-phase-voltage instruction signal is generated by an adder 32 and an inverting amplifier on the basis of the R-phase- and T-phase-voltage instruction signals, and the converter is controlled by the signals.

17. 发明专利

JPH04364368A INVERTER 失效
公开(公告)号：JPH04364368A
公开(公告)日：1992-12-16
申请号：JP26053491
申请日：1991-09-12
申请人： FUJI ELECTRIC CO LTD
发明人： HATOSAKI YOSHIHISA , TAKUBO HIROSHI , SHIBAYAMA KUNIO
IPC分类号： H02M7/04 , H02M7/06 , H02M7/48
摘要： PURPOSE:To provide an inverter which is small even if the capacity is enlarged and allowed small installation space and is easy is maintenance and is low in the number of parts and is cheap in the cost. CONSTITUTION:Six transistor units 4, which include the parts of the three phases of an inverter part by an amount of one phase at a time, and a diode unit 5 are stored unit by unit freely of forward drawing out on a plurality of shelves which are arranged vertically in a rack 13. The maintenance work can be done by drawing it out forward, and the transistor unit contains parts by an amount of only one phase, so it becomes simple and low-cost. An air duct is provided to improve ventilation in each transistor unit.

18. 发明专利

JPH03253262A RECTIFIER CIRCUIT 失效
公开(公告)号：JPH03253262A
公开(公告)日：1991-11-12
申请号：JP5155290
申请日：1990-03-01
申请人： FUJI ELECTRIC CO LTD
发明人： TAKUBO HIROSHI , YOSHIDA MASAKAZU
IPC分类号： H02M7/06
摘要： PURPOSE:To miniaturize a large capacity rectifier circuit by arranging the output sides of a plurality of rectifying sections formed with diode bridges, collectively, and by connecting the output sides to both the ends of a common smoothing capacitor. CONSTITUTION:At rectifying sections 2, 3 formed with diode bridges for converting a three-phase AC power source 1 to direct current, the output sides are connected to both the ends of a smoothing capacitor 6 in parallel with each other. The AC input sides of the rectifying sections 2, 3 are respectively connected to the three-phase AC power source 1 via reactors 4, 5. In this manner, the rectifying sections are divided into a plurality of small capacity rectifying sections, and for the respective rectifying sections, the module-formed diode bridges are used, and the output current of the respective rectifying sections is balanced by the reactors.

19. 发明专利

JPH03136412A SNUBBER CIRCUIT FOR POWER CONVERSION SEMICONDUCTOR ELEMENT AND ITS MODULE DEVICE 失效
公开(公告)号：JPH03136412A
公开(公告)日：1991-06-11
申请号：JP25729489
申请日：1989-10-02
申请人： FUJI ELECTRIC CO LTD
发明人： MIKI HIROSHI , FUJIWARA YOSHITAKA , IIDA KIYOSHI , TAKUBO HIROSHI , SHIBAYAMA KUNIO , KOBAYASHI SHINICHI
IPC分类号： H01L25/07 , H01L25/18 , H02M1/00 , H02M7/00 , H03K17/0814 , H03K17/16
摘要： PURPOSE:To reduce number of components and energy loss by connecting an asymmetry element in series with a capacitor so as to constitute a snubber circuit. CONSTITUTION:Series connection between each of constant voltage diodes 19-24 and each of capacitors 13-18 as asymmetry elements respectively is connected respectively in parallel with power TRs 1-6 as self-extinct power semiconductor elements. For example, a Zener voltage of a constant voltage diode 19 is set lower than a voltage of a DC power supply 25 and a surge voltage generated when the power TR 1 is turned off is absorbed in the capacitor 13 via the constant voltage diode 19. Thus, resistors for snubber are omitted to reduce the energy loss and number of components is reduced, the circuit is simplified and made small.

20. 发明专利

JP2014236530A 電力変換装置审中-公开
标题翻译：电源转换器件
公开(公告)号：JP2014236530A
公开(公告)日：2014-12-15
申请号：JP2013114721
申请日：2013-05-30
申请人：富士電機株式会社 , Fuji Electric Co Ltd
发明人： TAKUBO HIROSHI
IPC分类号： H02M7/48
CPC分类号： H02M5/458 , H02H7/1225 , H02M7/48 , H02M2001/008 , H02M2001/325
摘要：【課題】並列に設けられた複数の電力変換ユニットの中の故障した電力変換ユニットを直流電源ユニットから速やかに切り離して、他の健全な電力変換ユニットを継続運転することのできる簡易な構成の電力変換装置を提供する。【解決手段】直流リンク部を介して並列に設けられた複数の電力変換ユニットと、これらの電力変換ユニットにそれぞれ直流電力を供給する直流電源ユニットとの間に、前記各電力変換ユニットにそれぞれ供給される直流電力を制限する半導体スイッチ素子をそれぞれ個別に介装する。そして制御回路において前記各電力変換ユニットに生じる短絡電流をそれぞれ監視し、短絡電流が流れた電力変換ユニットに接続された前記半導体スイッチ素子をオフ制御して当該電力変換ユニットに対する電力供給を遮断する。【選択図】図1
摘要翻译：要解决的问题：提供一种电力转换装置，其具有简单的结构，其中异步电力转换单元与并联布置的多个电力转换单元中的直流电源单元迅速分离，以连续操作其他正常电力转换单元。解决方案：分别提供给功率转换单元的直流电力限制的半导体开关元件插入通过直流链路部分并联设置的多个功率转换单元和向每个功率转换单元提供直流电力的直流电源单元之间，分别。在控制电路中，分别监视发生到每个功率转换单元的短路电流，并且连接到短路电流流过的功率转换单元的半导体开关元件被控制为截止以将电源切断电源转换单元。

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