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    • 2. 发明专利
    • Laser power supply unit
    • 激光电源单元
    • JP2009194954A
    • 2009-08-27
    • JP2008030226
    • 2008-02-12
    • Mitsubishi Electric Corp三菱電機株式会社
    • IWABUKI HIROYASUKUMAGAI TAKASHIKIDOKORO HITOSHI
    • H02M7/48H01S3/10H02M7/537
    • PROBLEM TO BE SOLVED: To provide a laser power supply unit for obtaining stable laser output by stable discharge lighting while being reduced in size, by solving problems such as an increase in element loss and an uneven magnetization of a transformer. SOLUTION: In the laser power supply unit, which adjusts the laser output according to the time ratio between a drive period when an inverter unit 3 is on-off driven and a stop period when the inverter unit 3 is stopped, the first pulse width of a gate signal relative to at least one switching element on the side to be turned on first is made smaller than the half cycle of the driving cycle of the inverter unit, in every control cycle of the inverter unit 3. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种通过解决诸如元件损耗增加和变压器的不均匀磁化等问题而在减小尺寸的情况下通过稳定放电照明获得稳定的激光输出的激光供电单元。

      解决方案:在激光电源单元中,根据逆变器单元3的断电驱动的驱动期间和逆变器单元3停止的停止期间之间的时间比来调整激光输出,第一 在逆变器单元3的每个控制周期中,相对于首先要被接通的一侧的至少一个开关元件的栅极信号的脉冲宽度小于逆变器单元的驱动周期的半周期。 版权所有(C)2009,JPO&INPIT

    • 4. 发明专利
    • Device for generating direct current high voltage
    • 用于产生直流电流高压的装置
    • JP2008041318A
    • 2008-02-21
    • JP2006211105
    • 2006-08-02
    • Mitsubishi Electric Corp三菱電機株式会社
    • IWABUKI HIROYASUHASHIMOTO TAKASHIITO HIROSHIIWATA AKIHIKOTERAMOTO AKIYOSHISANO MICHIAKI
    • H05H5/02H02M7/04H02M7/06
    • PROBLEM TO BE SOLVED: To provide a device for generating direct current high voltage in which size reduction is realized by obtaining a structure of securing insulating withstand voltage and effectively utilizing space in the device.
      SOLUTION: In the device for generating direct current high voltage, in which a booster circuit is constituted by arranging a capacitor and a diode on an insulating substrate and which is equipped with a multistage voltage doubler rectifying circuit 1, in which the insulating substrates 20 of the booster circuit are piled in a plurality of numbers stepwise, the size of the insulating substrates 20 of the booster circuit, constituting the multistage voltage doubler rectifying circuit 1, is made to be different according to the stages, and a high voltage output stage is constituted of the insulating substrate 20 smaller than that at a low-voltage output stage.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:提供一种用于产生直流高压的装置,其中通过获得确保绝缘耐受电压并有效利用装置中的空间的结构来实现尺寸减小。 解决方案:在用于产生直流高压的装置中,其中通过在绝缘衬底上布置电容器和二极管而构成升压电路,并且其配备有多级倍压整流电路1,其中绝缘 升压电路的基板20分段堆叠成多个数字,构成多级倍压整流电路1的升压电路的绝缘基板20的尺寸根据各级而不同,高电压 输出级由比低电压输出级小的绝缘基板20构成。 版权所有(C)2008,JPO&INPIT
    • 5. 发明专利
    • High-frequency ac power supply device
    • 高频交流电源装置
    • JP2010284027A
    • 2010-12-16
    • JP2009136171
    • 2009-06-05
    • Mitsubishi Electric Corp三菱電機株式会社
    • IGARASHI HIROSHIKUMAGAI TAKASHIIWABUKI HIROYASUKURUSHIMA HIROSHI
    • H02M1/08H01F27/28H01F30/00H02M7/5387
    • PROBLEM TO BE SOLVED: To provide a high-frequency AC power supply device that improves the switching frequencies and switching voltages of a plurality of semiconductor switches constituting an inverter, or the like, by improving the configuration of a gate power supply.
      SOLUTION: A multi-output gate power supply 7 includes a plurality of transformers 15 for mutually supplying the insulated voltage source to each gate drive circuit 19, and a transformer drive circuit 14 for supplying driving power to those transformers; the transformer includes each transformer core 18 forming a closed magnetic path, secondary windings 17, wound around each transformer core, and primary windings 16 penetrating through a hollow part of each transformer core; each secondary winding is connected to each gate drive circuit while the primary windings of the plurality of transformers are connected in series; and the series primary windings 16 and the secondary windings 17 are provided with a space distance, while the series primary windings 16 are arranged on a printed board 28.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种通过改善栅极电源的配置来提高构成逆变器等的多个半导体开关的开关频率和开关电压等的高频交流电源装置。 解决方案:多输出门电源7包括多个用于将绝缘电压源相互提供给每个栅极驱动电路19的变压器15和用于向这些变压器提供驱动电力的变压器驱动电路14; 变压器包括形成闭合磁路的每个变压器铁心18,缠绕在每个变压器铁心周围的次级绕组17以及穿过每个变压器铁芯的中空部分的初级绕组16; 每个次级绕组连接到每个栅极驱动电路,同时多个变压器的初级绕组串联连接; 并且串联的初级绕组16和次级绕组17设置有空间距离,而串联的初级绕组16布置在印刷电路板28上。版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Switching circuit
    • 切换电路
    • JP2010115039A
    • 2010-05-20
    • JP2008286367
    • 2008-11-07
    • Mitsubishi Electric Corp三菱電機株式会社
    • KUMAGAI TAKASHIIWATA AKIHIKOMATSUBARA NORIYUKINAKAJIMA KOJIIWABUKI HIROYASU
    • H02M1/00H02M7/5387
    • PROBLEM TO BE SOLVED: To provide a switching circuit that reduces the loss without increasing the size. SOLUTION: Main/sub MOSFETs 1a, 3a are configured such that source terminals s are connected to each other, gate terminals g are connected to each other, and an external diode 5 is connected in parallel to a series circuit of the main/sub MOSFETs 1a, 3a with the same polarity as that of a body diode 2a. The main/sub MOSFETs 1a, 3a are simultaneously switching-controlled by a drive circuit 6a. A current flowing back to the body diode 2a is cut off by a sub-body diode 4a so as to allow both a reflux current and a recovery current to flow in the external diode 5, thereby reducing the total loss. A voltage-absorbing means is provided in the sub-MOSFET 3a. Therefore, it absorbs a surge voltage applied to the sub-MOSFET 3a immediately after the conduction of the external diode 5, and also, reduces a withstand voltage between a drain terminal d and the source terminal s of the sub-MOSFET 3a. Consequently, it is possible to reduce the loss of the sub-MOSFET 3a. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种在不增加尺寸的情况下减少损耗的开关电路。 解决方案:主/次级MOSFET1a,3a被配置为使得源极端子彼此连接,栅极端子g彼此连接,并且外部二极管5与主要的串联电路并联连接 /子MOSFET 1a,3a具有与体二极管2a的极性相同的极性。 主/次级MOSFET1a,3a由驱动电路6a同时开关控制。 回流到体二极管2a的电流被子体二极管4a切断,从而允许回流电流和恢复电流都流过外部二极管5,从而减少总损耗。 在子MOSFET 3a中设置有电压吸收装置。 因此,在外部二极管5的导通之后立即吸收施加到子MOSFET 3a的浪涌电压,并且还降低漏极端子d和子MOSFET 3a的源极端子s之间的耐受电压。 因此,可以减小子MOSFET 3a的损耗。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • High-voltage power supply device
    • 高压电源装置
    • JP2009124880A
    • 2009-06-04
    • JP2007296825
    • 2007-11-15
    • Mitsubishi Electric Corp三菱電機株式会社
    • SAKAI TAKUYAIWABUKI HIROYASU
    • H02M1/00B23K15/02H02M3/00
    • PROBLEM TO BE SOLVED: To solve the problem of being unable to distinguish a difference between an arcing phenomenon in a discharge tube, which is a characteristic phenomenon of an electron beam, and a load short circuit failure of a power supply device, in the power supply device having an electron beam generation circuit.
      SOLUTION: The power supply device 100 includes current detection circuits 109, 111 for detecting an internal current and an output current of the device. The output of the power supply device 100 is stopped by determining that a failure cause is due to a circuit inside a power supply when an over-current or a short circuit current is detected only in the internal current of the power supply, and it is also stopped by determining that the failure cause is due to a circuit failure when the short circuit current is simultaneously detected in the internal circuit and the output current of the power supply. By restarting the power supply device after a predetermined time has elapsed, the output of the power supply device 100 is stopped by determining, during this re-starting, that it is due to the arcing phenomenon when the over-current or the short circuit current is not detected again in the internal current and the output current, and also stopped by determining, during this restarting, that it is due to the load short circuit failure when the over-current or the short circuit current is detected again in the internal current and the output current.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题为了解决不能区分作为电子束的特征现象的放电管中的电弧现象与电源装置的负载短路故障之间的差异的问题, 在具有电子束发生电路的电源装置中。 解决方案:电源装置100包括用于检测装置的内部电流和输出电流的电流检测电路109,111。 当仅在电源的内部电流中检测到过电流或短路电流时,通过确定故障原因是由于电源内部的电路而停止供电装置100的输出,并且它是 在内部电路中同时检测到短路电流和电源的输出电流时,通过确定故障原因是由于电路故障而停止的。 通过在经过预定时间之后重新启动电源装置,通过在重启期间确定由过电流或短路电流引起的电弧现象,停止供电装置100的输出 在内部电流和输出电流中不再检测到,并且在该重新启动期间通过在内部电流再次检测到过电流或短路电流时由于负载短路故障而确定停止 和输出电流。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • 直流電源装置
    • 直流电源装置
    • JP2014230312A
    • 2014-12-08
    • JP2013105777
    • 2013-05-20
    • 三菱電機株式会社Mitsubishi Electric Corp
    • IWABUKI HIROYASUISHIGURO YOSHIAKISAKASHITA YUICHI
    • H02M3/155
    • 【課題】サージ電圧を低減し、回路の小型化、低損失化を図ることができる直流電源装置を提供する。【解決手段】直流入力電源3に変圧器4の1次側と第1のスイッチング素子5との直列回路を接続し、変圧器4の1次側と第1のスイッチング素子5の接続点に変圧器4の2次側と第1のダイオード7との直列回路をコンデンサ6を介して接続し、この直列回路に並列に第2のダイオード8を接続し、コンデンサ6と変圧器4の2次側との接続点に負荷2をリアクトル9を介して接続し、第1のスイッチング素子5を制御して直流入力電源3の電圧を昇降圧する制御回路11を備えた。【選択図】図1
    • 要解决的问题:提供一种通过降低浪涌电压来实现紧凑型电路和低损耗的直流电源装置。解决方案:变压器4的初级侧和第一开关元件5的串联电路连接到 直流输入电源3.变压器4的二次侧的串联电路和第一二极管7经由电容器6连接到变压器4的初级侧和第一开关元件5的结。第二二极管8 与串联电路并联连接。 负载2通过电抗器9连接到电容器6和变压器4的次级侧的接点。控制电路11用于控制第一开关元件5以升/降直流输入功率的电压 供应3。
    • 9. 发明专利
    • High-frequency ac power supply device
    • 高频交流电源装置
    • JP2011259665A
    • 2011-12-22
    • JP2010134085
    • 2010-06-11
    • Mitsubishi Electric Corp三菱電機株式会社
    • IGARASHI HIROSHIKUMAGAI TAKASHIIWABUKI HIROYASUKURUSHIMA HIROSHI
    • H02M1/08
    • PROBLEM TO BE SOLVED: To provide a high-frequency AC power supply device with long service life and high reliability without generating large variations in transformer output voltages of respective output gate power supplies even if manufacturing variations occur in a gate drive circuit or a semiconductor switch.SOLUTION: The AC power supply device includes a plurality of units each having: a semiconductor switch; a gate circuit that drives the semiconductor switch; a transformer that supplies a voltage source to the gate circuit; and a resistor connected to a secondary winding of the transformer in parallel. The semiconductor switches of the units are connected in series to each other and primary windings of the respective transformers of the units are connected in series to supply driving power, thus improving stability of the output voltage of a gate power supply.
    • 要解决的问题:即使在栅极驱动电路中发生制造变化,也可以提供具有长的使用寿命和高可靠性的高频交流电源装置,而不会对各个输出门电源的变压器输出电压产生大的变化, 半导体开关。 解决方案:交流电源装置包括多个单元,每个单元具有:半导体开关; 驱动半导体开关的门电路; 将电压源提供给所述门电路的变压器; 以及并联连接到变压器的次级绕组的电阻器。 这些单元的半导体开关彼此串联连接,并且单元的各个变压器的初级绕组串联连接以提供驱动电力,从而提高了栅极电源的输出电压的稳定性。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Power supply
    • 电源
    • JP2011188676A
    • 2011-09-22
    • JP2010053163
    • 2010-03-10
    • Mitsubishi Electric Corp三菱電機株式会社
    • KURUSHIMA HIROSHIKOSHIMAE TOSHIKIKIDOKORO HITOSHIIWABUKI HIROYASU
    • H02M7/493
    • PROBLEM TO BE SOLVED: To provide a power supply which optimizes inverter capacities operated in parallel to be reduced in size when inverters different in capacity are operated in parallel to drive an RLC serial load. SOLUTION: The power supply includes a first inverter and a second inverter different in power capacity connected in parallel to the output of a DC power supply and a first transformer and a second transformer connected to the outputs of each inverter. The ratio between leakage inductance of the first transformer and leakage inductance of the second transformer is set to equal to the ratio between the power capacity of the second inverter and the power capacity of the first inverter. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够并联运行的逆变器并联运行的并联运行的逆变器容量优化的电源,以便并联运行不同容量的逆变器来驱动RLC串行负载。 解决方案:电源包括与直流电源和第一变压器的输出并联连接的电力容量不同的第一逆变器和与每个逆变器的输出连接的第二变压器的第二逆变器。 第一变压器的漏电感和第二变压器的漏电感之比设定为与第二变换器的功率容量与第一变换器的功率容量之比。 版权所有(C)2011,JPO&INPIT