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1. 发明专利

JP2003338414A Reactor 有权
标题翻译：反应堆
公开(公告)号：JP2003338414A
公开(公告)日：2003-11-28
申请号：JP2002144871
申请日：2002-05-20
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： IMANAKA AKIRA , NISHIHIRO AKINORI , OGAMI MASAKATSU , KATO MASANORI , NAKAHARA YUJI , AKITA HIROYUKI , TANI YOSHIHIRO
IPC分类号： H01F37/00 , H01F38/02
CPC分类号： H01F3/14 , H01F27/38 , H01F2003/103
摘要： PROBLEM TO BE SOLVED: To obtain a reactor that can prevent deterioration in characteristics caused by a temperature rise even when a permanent magnet having an inferior temperature characteristic is used by effectively preventing the temperature rise of the magnet caused by the heat from a core. SOLUTION: In the reactor to which a magnetic bias is applied by the permanent magnet 9 provided on a core 15 with a coil 3, a magnetic gap 10 is provided between the magnet 9 and core 15 and a heat insulating insulator sheet 11 which hardly transfers heat is disposed in the gap 10. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了获得即使当使用具有较差温度特性的永久磁铁时，也可以防止由温度上升引起的特性引起的劣化的电抗器，以有效地防止由于来自核心。解决方案：在通过设置在具有线圈3的芯15上的永磁体9施加磁偏压的反应器中，在磁体9和芯15之间设置有磁隙10，并且隔热绝缘片11 难以传递热量的部件设置在间隙10中。（C）2004，JPO

2. 发明专利

JP2004047910A Reactor 有权
公开(公告)号：JP2004047910A
公开(公告)日：2004-02-12
申请号：JP2002206419
申请日：2002-07-16
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： IMANAKA AKIRA , NISHIHIRO AKINORI , OGAMI MASAKATSU , KATO MASANORI , NAKAHARA YUJI , AKITA HIROYUKI , TANI YOSHIHIRO
IPC分类号： H01F27/24 , H01F37/00 , H01F38/02
摘要： PROBLEM TO BE SOLVED: To provide a reactor for which points to apply shaking force are dispersed, the vibration of a core and noise are suppressed, and a process of laminating planar cores is simplified. SOLUTION: The reactor is provided with two kinds of the planar cores which are the planar core 1 in a recessed shape with the side legs of a dimension h1 at both ends of the upper part of a bottom side part and the planar core 2, in a chevron shape with the center leg 2c of a dimension longer than 2×h1 at the upper center part of the bottom side part 1a of the planar core 1 in the recessed shape. By abutting the upper part of the bottom side part 1a of the planar core 1 in the recessed shape and the center leg 2c of the planar core 2 in the chevron shape and alternately laminating the planar core 1 in the recessed shape and the planar core 2 in the chevron shape, a core structure 3a is constituted. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004055734A Dc reactor 有权
公开(公告)号：JP2004055734A
公开(公告)日：2004-02-19
申请号：JP2002209574
申请日：2002-07-18
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： NISHIHIRO AKINORI , IMANAKA AKIRA , OGAMI MASAKATSU , TANI YOSHIHIRO , NAKAHARA YUJI , AKITA HIROYUKI
IPC分类号： H01F27/24 , H01F37/00 , H01F38/02
摘要： PROBLEM TO BE SOLVED: To obtain a DC reactor wherein a permanent magnet for bias is not demagnetized. SOLUTION: The DC reactor is provided with cores 1, 2 for forming a magnetic circuit, a coil 8 wound around the cores and the permanent magnet 7 for generating a bias magnetic flux which faces a magnetic flux formed by the coil. In the DC reactor, a magnetic air gap 5 is formed at a part of the magnetic circuit of the cores, a trench 6 is arranged in a part of at least one out of surfaces forming the magnetic air gap of the core, the permanent magnet 7 is arranged in the trench 6, and the permanent magnet is magnetized, in such a manner that a magnetic flux is generated in a direction opposite to a direction of a magnetic flux formed by the coil. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2006296007A Drive circuit for power converter 有权
标题翻译：电源转换器驱动电路
公开(公告)号：JP2006296007A
公开(公告)日：2006-10-26
申请号：JP2005109583
申请日：2005-04-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAMURA SHIZUSATO , NISHIHIRO AKINORI , IMANAKA AKIRA , OGAMI MASAKATSU
IPC分类号： H02M1/08
摘要： PROBLEM TO BE SOLVED: To obtain a drive circuit for a power converter capable of transmitting a plurality of signals for controlling a gate without increasing the number of components nor cost.
SOLUTION: The drive circuit for a power converter is constituted of a driver section 4 which inputs a command created by superimposing a plurality of control commands output from a control unit on one command and outputs a signal for driving a voltage drive type switching element, a separation circuit 5 separating the signals output from the driver section into a plurality of control signals, a first gate resistor 6a, a second gate resistor 6b having one end connected in series to the first gate resistor 6a and the other end connected to the gate terminal of the voltage drive type switching element, and a gate resistor changing switch 7 connected in parallel to the first gate resistor 6a, wherein the gate resistor changing switch 7 is operated based on the control signal output from the separation circuit 5.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：获得能够发送用于控制门的多个信号的功率转换器的驱动电路，而不增加部件的数量并且不增加成本。解决方案：功率转换器的驱动电路由驱动器部分4构成，驱动器部分4输入通过将从控制单元输出的多个控制命令叠加在一个命令上而产生的命令，并输出用于驱动电压驱动型开关元件，将从驱动器部分输出的信号分离成多个控制信号的分离电路5，第一栅极电阻器6a，第一栅极电阻器6b，其一端串联连接到第一栅极电阻器6a，另一端连接到电压驱动型开关元件的栅极端子和与第一栅极电阻6a并联连接的栅极电阻变化开关7，其中栅极电阻变化开关7基于从分离电路5输出的控制信号而被操作。 P>版权所有（C）2007，JPO＆INPIT

5. 发明专利

JPH09238481A POWER CONVERTING EQUIPMENT 失效
公开(公告)号：JPH09238481A
公开(公告)日：1997-09-09
申请号：JP4596496
申请日：1996-03-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAMURA SHIZUSATO , NISHIHIRO AKINORI , OGAMI MASAKATSU
IPC分类号： H02M7/48 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To obtain a stable output voltage free from distortion when phase shift is generated between an input voltage and an output voltage, in a power converting equipment. SOLUTION: This equipment is provided with a main circuit, an AC power supply 9 and an AC output terminal. The main circuit is provided with the following, which are connected in parallel to each other; a converter circuit wherein two switching circuits are connected in series which are constituted by connecting switching elements 1s-6s and diodes 1d-6d in inverse parallel, a changeover circuit wherein the two switching circuits are connected in series, an inverter circuit wherein the two switching circuits are connected in series, and a capacitor 7. A reference command based on a reference signal from a reference signal generating circuit is subjected to pulse width modulation, and used as the timing signal to the changeover circuit.

6. 发明专利

JPH06113549A PARALLEL OPERATION CIRCUIT FOR SWITCHING ELEMENT AND SEMICONDUCTOR MODULE 失效
公开(公告)号：JPH06113549A
公开(公告)日：1994-04-22
申请号：JP25959392
申请日：1992-09-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAITANI TOSHIYUKI , ADACHI TOSHIHARU , OGAMI MASAKATSU , SHIMA AKIRA
IPC分类号： H02M3/155 , H02M1/00 , H02M3/00 , H02M7/04 , H02M7/08
摘要： PURPOSE:To well balance a plurality of switching elements to be operated in parallel. CONSTITUTION:Conductors 1, 2, connecting between a common power supply point S and respective transistors TR1, TR2, extend downward from the common power supply point S to different openings 3b, 3a of a core 3. The conductors 1, 2 then enter into the core 3 and exit through different openings 3a, 3b thence extend downward to two switching elements TR1, TR2. This arrangement eliminates difference between wirings and balances the currents well when two switching elements are operated in parallel. Currents can also be balanced well between respective switching elements even when more than two switching elements are operated in parallel.

7. 发明专利

JPH0513894A BOARD 失效
公开(公告)号：JPH0513894A
公开(公告)日：1993-01-22
申请号：JP16434591
申请日：1991-07-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIZAWA YUJI , OGAMI MASAKATSU
IPC分类号： H05K1/02 , H05K1/05 , H05K1/14 , H05K1/18 , H05K7/20
摘要： PURPOSE:To obtain a board in which influence of heat to an electronic member weak to the heat, is reduced when an electronic member generating heat and the electronic member weak for heat are mounted on a metal board and a nonmetallic board. CONSTITUTION:The board comprises a metal board 1 in which an electronic member 3 generating heat is arranged, and a nonmetallic board 7 in which an electronic member 4 weaker to heat as compared with the member 3 is arranged and its back surface is brought into close contact with the front surface of the board 1, and the board 1 is removed at the part of the contact with the back surface in which the member weak to heat is arranged, of the board 7.

8. 发明专利

JPH04212016A ROTATION NUMBER DETECTOR 失效
公开(公告)号：JPH04212016A
公开(公告)日：1992-08-03
申请号：JP5708491
申请日：1991-03-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： AOKI YUKIO , MIZUTANI TAKAO , ARAI SHINJI , OGAMI MASAKATSU
IPC分类号： G01D5/245 , G01P3/487
摘要： PURPOSE:To improve reliability in transmitting magnetic bubbles by providing a plurality of yoke for forming a magnetic circuit for coupling a rotating permanent magnet with a bubble chip and for applying a driving magnetic field generated by the rotating permanent magnet to the magnetic bubbles. CONSTITUTION:Yokes 15 to 18 are placed wherein ends 15a to 18a are on the same plane as a magnetic bubble chip 6 and oppositely placed on four corners while the other ends 15b to 18b are provided with intervals of 45 degrees facing an outer periphery of a rotating permanent magnet 4. Thus a magnetic circuit coupling the magnet 4 with the bubble chip 6 is formed. Therefore magnetic flux of the magnet 4 can be applied to the bubble chip 6 via the yokes 15 to 18 as a circular magnetic field, so that magnetization of a transmission pattern can be constant and reliability in bubble transmission can be improved.

9. 发明专利

JPS63148894A CONTROLLER FOR PWM INVERTER 失效
公开(公告)号：JPS63148894A
公开(公告)日：1988-06-21
申请号：JP29362086
申请日：1986-12-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： IMANAKA AKIRA , OGAMI MASAKATSU
IPC分类号： H02P27/08
摘要： PURPOSE:To reduce electromagnetic noise of an induction motor by using a carrier signal generator as a frequency modulation signal generator. CONSTITUTION:A frequency modulation signal generator 17 generates a carrier signal obtained by frequency-modulation of a functional waveform such as triangular wave according to an instantaneous value of pulsating current such as sine wave. Said carrier signal is compared with a modulated signal from multipliers A1, A2, A3 by comparators 6a, 6b, 6c. Thus, if a carrier signal generator is used as a frequency modulation signal generator, many sidebands are generated in a higher harmonic of output voltage of PWM inverter 2 decrease its peak value. Therefore, electromagnetic noise of an induction motor is reduced without changing a frequency of said carrier signal.

10. 发明专利

JPH10257779A ELECTRIC POWER CONVERTER 失效
公开(公告)号：JPH10257779A
公开(公告)日：1998-09-25
申请号：JP5613397
申请日：1997-03-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： KURIYAMA SHIGEZO , ANDO TARO , IKEDA KATSUSHI , GOTO YOICHI , OGAMI MASAKATSU , NISHIHIRO AKINORI
IPC分类号： H02H3/24 , H02H7/122 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To detect the upper lower short-circuit of an inverter circuit by determining the presence of abnormality from the outputs of the first comparator which judge whether detected voltage is near a positive electrode and the second comparator which judges whether it is near a negative electrode, and the output of an ignition signal which on/off-controls a semiconductor element for switching. SOLUTION: A control means 10a determines the presence of abnormality in self-arc-extinguishing element 51a, 51d and a circuit which outputs an ignition signal to the self-arc-extinguishing elements 51a, 51d from the outputs of a comparator 11a (the first comparator which judges whether output voltage VO is near a positive electrode) for VP and a comparator 12a (the second comparator which judges whether output voltage VO is near a negative electrode) for VN, and from the output of an ignition signal which on/off-controls the self-arc-extinguishing elements 51a, 51d as a semiconductor element for switching. If any abnormality is found, switching of a semiconductor element for switching which faces the semiconductor element for switching which had abnormality is shut down by a shunt-down circuit.

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