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    • 1. 发明专利
    • Impedance matching device and method of impedance matching
    • 阻抗匹配装置和阻抗匹配方法
    • JP2010041558A
    • 2010-02-18
    • JP2008204124
    • 2008-08-07
    • Kyosan Electric Mfg Co LtdYokohama National Univ国立大学法人横浜国立大学株式会社京三製作所
    • KAWAMURA TOKUOHIROSE YUKITAKAYANAGI ATSUSHITAKADA KOICHI
    • H03H11/30H03H7/40
    • PROBLEM TO BE SOLVED: To prevent the loss of control in impedance matching.
      SOLUTION: In an impedance matching device for adjusting the impedance of a high-frequency power supply and a load, the impedance matching device includes: an impedance matching circuit in which the impedance variable element between the high-frequency power supply and the load is provided; and an impedance control section for performing impedance matching by controlling the phase difference of voltage and current and the absolute value of the input impedance of the impedance matching circuit so as to conform with each target value, by changing the impedance value of the impedance variable element of the impedance matching circuit. By carrying out the impedance matching for combining a seek control and a following control, the loss of control in the impedance matching is prevented.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:防止阻抗匹配失控。 解决方案:在用于调整高频电源和负载的阻抗的阻抗匹配装置中,阻抗匹配装置包括:阻抗匹配电路,其中高频电源和 提供负载; 以及阻抗控制部,其通过控制电压和电流的相位差以及阻抗匹配电路的输入阻抗的绝对值,以便符合每个目标值,通过改变阻抗可变元件的阻抗值来执行阻抗匹配 的阻抗匹配电路。 通过执行用于组合搜索控制和后续控制的阻抗匹配,可以防止阻抗匹配中的失控。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Bi-directional voltage step up/step down chopper circuit
    • 双向电压升压/降压CHOPPER电路
    • JP2007274778A
    • 2007-10-18
    • JP2006094802
    • 2006-03-30
    • Kyosan Electric Mfg Co LtdYokohama National Univ国立大学法人横浜国立大学株式会社京三製作所
    • KAWAMURA TOKUOTSURUTA YUKINORIITO YOSHIHIROIWAKURA TETSUSHI
    • H02M3/155
    • PROBLEM TO BE SOLVED: To control an overvoltage and an overcurrent by reducing the loss of a bi-directional voltage step up/step down chopper circuit.
      SOLUTION: The bi-directional voltage step up/step down circuit is provided with four electrically equal choppers that perform boosting operation or dropping operation between terminals. Each chopper constitutes a snubber-assisted Zero Voltage and Zero Current Transition (ZVZCT) Chopper, which is made up of two main reactors constituting one reactor equivalently, a main switch, one pole of which is connected to one end of the series connector of the main reactors and the other pole of which is connected directly to one voltage terminal of a DC power source, the series connector of a snubber diode connected between both poles of the main switch and a snubber capacitor, an auxiliary switch connected between the connection point of the snubber diode, and the snubber capacitor and that of the series connector of the two main reactors.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过减少双向升压/降压斩波电路的损耗来控制过电压和过电流。

      解决方案:双向升压/降压电路设有四个电气相等的斩波器,可在端子之间执行升压操作或放电操作。 每个斩波器构成缓冲器辅助的零电压和零电流转换(ZVZCT)斩波器,其由构成一个反应器的两个主电抗器组成,主开关,其一极连接到串联连接器的一端 主电抗器,另一极直接连接到直流电源的一个电压端子,连接在主开关两极的缓冲二极管的串联连接器和缓冲电容器之间,辅助开关连接在主电抗器的连接点 缓冲二极管和缓冲电容器以及两个主电抗器的串联连接器。 版权所有(C)2008,JPO&INPIT

    • 3. 发明专利
    • Power converter
    • 电源转换器
    • JP2010051126A
    • 2010-03-04
    • JP2008214417
    • 2008-08-22
    • Yokohama National Univ国立大学法人横浜国立大学
    • KAWAMURA TOKUOTSURUTA YUKINORI
    • H02M7/48
    • Y02B70/1491
    • PROBLEM TO BE SOLVED: To protect a self-turn-off element from a large current change generated at turn-on without using an arm reactor, and to regenerate a snubber energy to a main circuit and reduce a snubber loss. SOLUTION: The power converter has a main switching circuit series-parallel connecting a plurality of main switches to a DC power supply and snubber circuits connected in parallel with each main switch. The power converter has also auxiliary resonance circuits using parts of the main switching circuit and parts of the snubber circuits to form one path. The auxiliary resonance circuit turns a current and a voltage between both ends of the main switch to zero by discharge in the auxiliary resonance circuit, and the snubber energy of the snubber circuit is regenerated by a resonance circuit. A voltage rise at the turn-on is avoided without using the arm reactor by turning the current and the voltage between both ends of the main switch to zero by discharging the auxiliary resonance circuit. The surge of a DC voltage at the turn-off by the arm reactor is reduced, and the capacitor capacity of the snubber circuit is decreased by reducing the effect of a voltage surge. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了保护自关断元件免于在导通时产生的大电流变化而不使用臂式电抗器,并且将缓冲能量再生到主电路并减少缓冲器损耗。 电源转换器具有将多个主开关并联连接到与每个主开关并联连接的直流电源和缓冲电路的主开关电路。 功率转换器还具有使用主开关电路的部分和缓冲电路的部分的辅助谐振电路以形成一个路径。 辅助谐振电路通过辅助谐振电路中的放电使主开关的两端之间的电流和电压变为零,并且缓冲电路的缓冲能量由谐振电路再生。 通过将辅助谐振电路放电,将主开关的两端之间的电流和电压转换为零,就可避免接通时的电压上升。 通过臂式电抗器关闭的直流电压的浪涌降低,并且通过减小电压浪涌的影响来减小缓冲电路的电容器容量。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Multiphase converter
    • 多相转换器
    • JP2013081301A
    • 2013-05-02
    • JP2011219966
    • 2011-10-04
    • Toyota Motor Corpトヨタ自動車株式会社Yokohama National Univ国立大学法人横浜国立大学
    • MANABE KOTAKANEKO TOMOHIKOKAWAMURA TOKUOTSURUTA YUKINORI
    • H02M3/155B60L11/18H01M10/44
    • Y02T10/7005Y02T10/7241
    • PROBLEM TO BE SOLVED: To provide a multiphase converter that allows charging a vehicle-loaded power supply and outputting an output voltage from the vehicle-loaded power supply by stepping up and stepping down without using another voltage conversion means.SOLUTION: A three-phase multiphase converter 1 is operated in a normal operating mode and an external charging/discharging mode. In the external charging/discharging mode, by turning off relay switches SW1, SW2, and SW3 according to a command signal of a controller 8 and by arbitrarily controlling switching operation of each of switching elements S1 to S6, a circuit part including a U-phase power module 11 can be functioned as a converter 300 for stepping up and stepping down a voltage, and a circuit part including a V-phase power module 12 and a W-phase power module 13 can be functioned as an inverter 400 for AC/DC conversion.
    • 要解决的问题:提供一种多相转换器,其允许对车载电源进行充电,并且通过在不使用另一个电压转换装置的情况下通过升压和降压从车载电源输出输出电压。

      解决方案:三相多相转换器1在正常工作模式和外部充电/放电模式下工作。 在外部充电/放电模式中,通过根据控制器8的指令信号关闭继电器开关SW1,SW2,SW3,并通过任意地控制各开关元件S1〜S6的开关动作, 相电力模块11可以用作升压和降压的转换器300,并且包括V相功率模块12和W相功率模块13的电路部分可以用作AC / 直流转换。 版权所有(C)2013,JPO&INPIT

    • 9. 发明专利
    • Bidirectional buck-boost chopper circuit
    • 双向BUCK-BOOST CHOPPER电路
    • JP2010233312A
    • 2010-10-14
    • JP2009076746
    • 2009-03-26
    • Kanagawa Acad Of Sci & TechnolYokohama National Univ国立大学法人横浜国立大学財団法人神奈川科学技術アカデミー
    • KAWAMURA TOKUOTSURUTA YUKINORIMARTIN PAVLOVSKY
    • H02M3/155H02M7/21
    • PROBLEM TO BE SOLVED: To carry out full soft switching in an operating range in a bidirectional buck-boost chopper circuit without causing a non-soft switching range due to a snubber capacitor voltage residue even when an input/output voltage fluctuates.
      SOLUTION: A series connection body 70 composed of a diode 50, an auxiliary switch 40, and a saturable reactor 60 is connected between a connection point between a snubber capacitor 20 and a snubber diode 30 and direct-current power supplies 1a, 1b. When a voltage stored in the snubber capacitor is regenerated to the direct-current power supplies, the step-up ratio of the output voltage of a chopper portion to the voltage of the direct-current power supplies is set to 2 or above, to null a voltage remaining in the snubber capacitor 20. As a result, a non-soft switching range is not generated due to the snubber capacitor voltage residue even when the input/output voltage fluctuates, and full soft switching can be carried out in an operating range.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:即使在输入/输出电压波动时,在双向降压 - 升压斩波电路的工作范围内进行全软开关,也不会由于缓冲电容器电压残留而导致非软开关范围。 解决方案:在缓冲电容器20和缓冲二极管30之间的连接点和直流电源1a之间连接由二极管50,辅助开关40和可饱和电抗器60组成的串联连接体70, 1B。 当存储在缓冲电容器中的电压再生到直流电源时,斩波器部分的输出电压与直流电源的电压的升压比被设定为2以上,为零 剩余在缓冲电容器20中的电压。结果,即使输入/输出电压波动,也由于缓冲电容器电压残留而不产生非软切换范围,并且可以在操作范围内执行全软切换 。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Power supply independent control method, power supply transverse current suppressing method, power supply independent control system, independent control power supply, and power supply control program
    • 电源独立控制方法,电源横向电流抑制方式,独立电源供电系统,电源控制方案
    • JP2006081317A
    • 2006-03-23
    • JP2004262960
    • 2004-09-09
    • Yokohama National Univ国立大学法人横浜国立大学
    • KAWAMURA TOKUOEDUARDO SATO
    • H02J9/06H02M7/48H02M7/493
    • PROBLEM TO BE SOLVED: To suppress transverse currents by independently controlling a plurality of power supplies that are connected in parallel, and to maintain voltage control by preventing the stop of the voltage control of the power supplies by the generation of transverse currents. SOLUTION: In controlling a plurality of the power supplies connected in parallel, the independent control of the power supplies is performed by obtaining active currents and reactive ones from the output currents of the power supplies, and by performing output voltage controls including a phase control based on the active currents and a voltage amplitude control based on the reactive current. The output voltages are controlled by the voltage amplitude control so as to compensate voltage drops caused by the interior impedance of the power supplies. Each power supply performs each process independently from other power supplies. The transverse currents are suppressed in each power supply by independently compensating the voltage drop by the interior impedance, and voltage differences between the power supplies are reduced by controlling the transverse currents. As a result, the voltage of each power supply can be controlled within a preset range, so that such a case can be avoided that the voltage control is stopped by a voltage limiter that limits a large voltage difference. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过独立地控制并联连接的多个电源来抑制横向电流,并且通过防止通过产生横向电流来停止电源的电压控制来保持电压控制。 解决方案:在控制并联连接的多个电源中,通过从电源的输出电流获得有效电流和无功电流来执行电源的独立控制,并且通过执行包括 基于有功电流的相位控制和基于无功电流的电压幅度控制。 输出电压由电压幅度控制控制,以补偿由电源的内部阻抗引起的电压降。 每个电源独立于其他电源执行每个进程。 通过独立地通过内部阻抗补偿电压降,在每个电源中抑制横向电流,并且通过控制横向电流来降低电源之间的电压差。 结果,可以将每个电源的电压控制在预设范围内,从而可以避免电压控制由限制大电压差的限压器停止的情况。 版权所有(C)2006,JPO&NCIPI