专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JP2006136056A Hollow cathode keeper power supply 有权
标题翻译： HOLLOW CATHODE保持电源
公开(公告)号：JP2006136056A
公开(公告)日：2006-05-25
申请号：JP2004319348
申请日：2004-11-02
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUGA IKURO , KAWAKAMI TOMOYUKI , OSUGA HIROYUKI
IPC分类号： H02M3/28 , H01J27/02
CPC分类号： F03H1/0018
摘要： PROBLEM TO BE SOLVED: To obtain a hollow cathode keeper power supply that is prevented in the runaway of a hollow cathode after the start of discharge, and can be reduced in cost, size and weight by being simplified in its power supply constitution.
SOLUTION: The hollow cathode keeper power supply is provided with a control circuit 17 that controls a switching element 3 so that a constant voltage is applied to the hollow cathode 18 from a power supply circuit 5 before the hollow cathode 18 starts discharging, and when the hollow cathode 18 starts the discharging, controls the switching element 3 so that the constant current flows to the hollow cathode 18 from the power supply circuit 5.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了获得在放电开始之后防止空心阴极失控的中空阴极保持器电源，并且通过简化其供电构造可以降低成本，尺寸和重量。解决方案：中空阴极保持器电源设置有控制电路17，控制电路17控制开关元件3，使得在中空阴极18开始放电之前从电源电路5向空心阴极18施加恒定电压，并且当空心阴极18开始放电时，控制开关元件3，使得恒定电流从电源电路5流到空心阴极18。版权所有（C）2006，JPO＆NCIPI

12. 发明专利

JP2009165265A Power converter 有权
标题翻译：电源转换器
公开(公告)号：JP2009165265A
公开(公告)日：2009-07-23
申请号：JP2008000392
申请日：2008-01-07
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO HIROSHI , KAWAKAMI TOMOYUKI , FUJIWARA KENJI , NAKABAYASHI KOICHI , TAKEUCHI IPPEI
IPC分类号： H02M7/515 , H02J3/46 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a power converter in which a first single-phase inverter 2 for inputting a DC voltage generated by a solar cell 1 is connected in series with a second single-phase inverter 4 for DC-inputting a second capacitor 5 so as to output AC power as the total sum of the respective generated voltages, capable of suppressing a voltage rise in the second capacitor 5 when a load 7 changes suddenly. SOLUTION: When a voltage command 13a generated according to the voltage of the load 7 exceeds specified voltage threshold values 14, 15, by outputting voltage from the first single-phase inverter 2, the first single-phase inverter 2 outputs one pulse voltage in a half period and the second single-phase inverter 4 outputs the difference by PWM control. When the voltage of the second capacitor 5 becomes a predetermined voltage value 26 or higher, the specified voltage threshold values 14, 15 are changed to voltage threshold values 17, 18 of which absolute values are increased. Therefore, the amount of power output from the first single-phase inverter 2 is reduced to increase the discharged capacity of the second capacitor 5 through the second single-phase inverter 4. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种电力转换器，其中用于输入由太阳能电池1产生的直流电压的第一单相逆变器2与用于DC输入的第二单相逆变器4串联连接以便输出AC电力作为各个发电电压的总和，当负载7突然变化时能够抑制第二电容器5的电压上升。解决方案：当根据负载7的电压产生的电压指令13a超过指定电压阈值14,15时，通过从第一单相逆变器2输出电压，第一单相逆变器2输出一个脉冲第二单相逆变器4通过PWM控制输出差值。当第二电容器5的电压变为预定电压值26或更高时，指定的电压阈值14,15被改变为绝对值增加的电压阈值17,18。因此，从第一单相逆变器2输出的功率量减少，以通过第二单相逆变器4增加第二电容器5的放电容量。版权所有（C）2009，JPO＆INPIT

13. 发明专利

JP2009165222A Power conversion device 有权
标题翻译：电源转换器件
公开(公告)号：JP2009165222A
公开(公告)日：2009-07-23
申请号：JP2007340126
申请日：2007-12-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA KENJI , IWATA AKIHIKO , KAWAKAMI TOMOYUKI , ITO HIROSHI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To obtain a power conversion device which can suppress voltage variations of DC bus bars of single-phase inverters, can suppress a surge voltage by decelerating switching speed, and can reduce loss and cost.
SOLUTION: In the power conversion device which is connected with the two or more single-phase inverters in series, and feeds AC outputs which are composed from the two or more single-phase inverters to a load, at least one single-phase inverter out of the single-phase inverters having arms connected to the load out of the two or more single-phase inverters is constituted of a one-pulse arm which performs switching when output polarities are switched, and a PWM arm which performs constant PWM switching, and is a PWM inverter which is applied with PWM control. The PWM arms are connected to the load, and the one-pulse arm is connected to the single-phase inverter other than the PWM inverter.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了获得可以抑制单相逆变器的直流母线的电压变化的电力转换装置，可以通过减速开关速度来抑制浪涌电压，并且可以降低损耗和成本。解决方案：在与两个或更多个单相逆变器串联连接的电力转换装置中，将由两个或多个单相逆变器组成的交流输出馈送到负载，至少一个单相逆变器，具有连接到两个以上的单相逆变器的负载的臂的单相逆变器中的相位逆变器由在输出极性切换时进行切换的单脉冲臂和执行恒定PWM的PWM臂构成开关，并且是应用PWM控制的PWM逆变器。 PWM臂连接到负载，单脉冲臂连接到PWM逆变器以外的单相逆变器。版权所有（C）2009，JPO＆INPIT

14. 发明专利

JP2009027806A Power conversion device 有权
标题翻译：电源转换器件
公开(公告)号：JP2009027806A
公开(公告)日：2009-02-05
申请号：JP2007186840
申请日：2007-07-18
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA KENJI , KAWAKAMI TOMOYUKI , ITO HIROSHI , YAMADA MASAKI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To suppress the output higher harmonic wave of an inverter by preventing unnecessary power regeneration and generation of the line voltage having a polarity reverse to that of the present AC output, while securing a short-circuit prevention period for preventing the short-circuit between the upper and lower arms of each single-phase inverter or between a first single-phase inverter and a short-circuit switch. SOLUTION: The power conversion device comprises: a single-phase inverter 7 which inputs DC power source and has a plurality of semiconductor switching elements Q 11 to Q 14 ; a short-circuit switch 10 for short-circuiting between both terminals on the AC side of the single-phase inverter 7; and a detection part 21 for detecting the polarity of the AC side output of the single-phase inverter 7. During the short-circuit prevention period between the single-phase inverter 7 and the short-circuit switch 10, the power conversion device controls all the semiconductor switching elements Q 11 to Q 14 constituting the single-phase inverter 7 so that they are turned off, and also controls the short-circuit switch 10 to allow current to flow in the same direction as the polarity of the AC side output. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了通过防止不必要的电力再生和具有与当前AC输出的极性相反的极性的线电压的产生来抑制逆变器的输出高次谐波，同时确保用于防止每个单相逆变器的上臂和下臂之间或第一单相逆变器与短路开关之间的短路。解决方案：电力转换装置包括：单相逆变器7，其输入直流电源并具有多个半导体开关元件Q 11 至Q 14; 用于在单相逆变器7的AC侧的两端子之间短路的短路开关10; 以及用于检测单相逆变器7的AC侧输出的极性的检测部21.在单相逆变器7和短路开关10之间的短路防止期间，电力转换装置控制全部构成单相逆变器7的半导体开关元件Q 11 到Q 14 ，使得它们被截止，并且还控制短路开关10以允许电流沿与AC侧输出的极性相同的方向流动。版权所有（C）2009，JPO＆INPIT

15. 发明专利

JP2008178158A Power converter 审中-公开
标题翻译：电源转换器
公开(公告)号：JP2008178158A
公开(公告)日：2008-07-31
申请号：JP2007006514
申请日：2007-01-16
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO HIROSHI , KAWAKAMI TOMOYUKI , FUJIWARA KENJI , IWATA AKIHIKO
IPC分类号： H02M7/483 , H02J3/38
摘要： PROBLEM TO BE SOLVED: To suppress a leak current flowing to a floating capacity of a panel, and to improve conversion efficiency, in a power converter which feeds AC power to a system by AC conversion after boosting and stepping down a voltage generated by a solar battery panel. SOLUTION: A second single-phase inverter 11 is connected to one of AC-side both terminals of a first single-phase inverter 10 which uses a DC voltage obtained by boosting and stepping down the voltage of the solar battery panel 1 as a DC source, and a third inverter 12 is connected to the other terminal in series thereto. DC input voltages of the two single-phase inverters 11, 12 are made to be almost the same, and a first control mode which suppresses the leak current by synchronizing output timing, and a second control mode which reduces loss by shifting the output timing are switched by detecting the leak current flowing according to the magnitude of the floating capacity which changes by weather or the like. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了抑制流向面板的浮动容量的泄漏电流并提高转换效率，在升压和降压产生的电压之后通过AC转换将AC电力馈送到系统的电力转换器中由太阳能电池板。解决方案：第二单相逆变器11连接到第一单相逆变器10的AC侧两端之一，该第一单相逆变器10使用通过升压和降压太阳能电池板1的电压而获得的直流电压作为 DC源和第三反相器12串联连接到另一个端子。使两个单相逆变器11,12的直流输入电压几乎相同，并且通过使输出定时同步来抑制泄漏电流的第一控制模式和通过移位输出定时来减少损耗的第二控制模式通过根据由天气等而改变的浮动容量的大小来检测流过的泄漏电流来切换。版权所有（C）2008，JPO＆INPIT

16. 发明专利

JP2012244825A Electric power conversion apparatus 审中-公开
标题翻译：电力转换装置
公开(公告)号：JP2012244825A
公开(公告)日：2012-12-10
申请号：JP2011114261
申请日：2011-05-23
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAWAKAMI TOMOYUKI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To reduce the power consumption of cooling fans 6, 8 with a simple structure in an electric power conversion apparatus 1 including an electric power conversion part 3 converting DC output power of solar cells 20 into AC power and the cooling fans 6, 8 cooling the electric power conversion part 3.SOLUTION: An electric power conversion part 3 is housed in a housing 2 and solar cells 20 are disposed on an upper surface of the housing 2. The output of the solar cells 20 is input to the electric power conversion part 3 and the output of the solar cells 20 is supplied to a cooling fan drive device 24 without passing through the electric power conversion part 3. Drive voltages of the cooling fans 6, 8 are obtained according to the power generation amount of the solar cells 20, and drive power of the cooling fans 6, 8 is generated according to the required amounts.
摘要翻译：要解决的问题为了在包括将太阳能电池20的DC输出功率转换为AC电力的电力转换部分3的电力转换装置1中以简单的结构来降低冷却风扇6,8的功率消耗，以及冷却风扇6,8冷却电力转换部3.解决方案：电力转换部分3容纳在壳体2中，太阳能电池20设置在壳体2的上表面上。太阳能的输出电池20被输入到电力转换部3，并且太阳能电池20的输出被提供给冷却风扇驱动装置24而不通过电力转换部3.冷却风扇6,8的驱动电压根据到太阳能电池20的发电量，并且根据所需量产生冷却风扇6,8的驱动电力。版权所有（C）2013，JPO＆INPIT

17. 发明专利

JP2009303381A Power conversion device 审中-公开
标题翻译：电源转换器件
公开(公告)号：JP2009303381A
公开(公告)日：2009-12-24
申请号：JP2008154684
申请日：2008-06-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： NAKABAYASHI KOICHI , KAWAKAMI TOMOYUKI
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To ensure operation stability with respect to voltage variation of a DC power supply while maintaining high efficiency of conversion in a wide operation condition range by achieving miniaturization and cost reduction of components in a power conversion device in which a plurality of inverters are connected in series. SOLUTION: A capacitor 3 becoming a DC power supply of an inverter 6 to output a maximum voltage among single-phase inverters constituting an inverter unit 80 is generated by output of a DC voltage conversion circuit 70 while capacitors 4, 5 becoming each DC power supply of inverters 7, 8 are generated by each output of DC/DC converters 10a, 10b operated using the capacitor 3 as a DC input source. A control part 90 includes an output power calculation part 49 for second/third inverters that calculates each output power of the inverters 7, 8, and a step-up circuit operation/stop determination part 50 for determining the operation/stop of a step-up circuit 11 on the basis of each output power calculated by the output power calculation part 49. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过实现电力转换装置中的部件的小型化和成本降低，确保在直流电源的电压变化方面的操作稳定性，同时在广泛的运行状态范围内保持高转换效率，其中多个逆变器串联连接。解决方案：电容器3通过直流电压转换电路70的输出而形成变换器6的直流电源，以输出构成逆变器单元80的单相逆变器中的最大电压，同时电容器4,5成为每个通过使用电容器3作为DC输入源工作的DC / DC转换器10a，10b的每个输出产生逆变器7,8的直流电源。控制部分90包括用于计算逆变器7,8的每个输出功率的第二/第三逆变器的输出功率计算部分49和用于确定步进电机的操作/停止的升压电路操作/停止确定部分50，基于由输出功率计算部分49计算出的每个输出功率的升压电路11.版权所有：（C）2010，JPO＆INPIT

18. 发明专利

JP2009153315A Power conversion apparatus 有权
标题翻译：功率转换装置
公开(公告)号：JP2009153315A
公开(公告)日：2009-07-09
申请号：JP2007329970
申请日：2007-12-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA KENJI , IWATA AKIHIKO , KAWAKAMI TOMOYUKI , ITO HIROSHI
IPC分类号： H02M1/08
摘要： PROBLEM TO BE SOLVED: To provide a power conversion apparatus that prevents the drop of its power conversion efficiency by controlling a surge voltage due to the recovery of a diode, and also prevents an increase in loss at turn on of a semiconductor switching element.
SOLUTION: The apparatus includes a first gate driving circuit 7, which determines the switching speed of the first semiconductor switching element with a gate resistor and drives the first semiconductor switching element, and a second gate driving circuit 8, in which a parallel circuit, which is composed of a p-channel type MOS-FET 15, being a switching element being switched on after a predetermined time since start of charge of the gate of the second semiconductor switching element, and a Zener diode 16, is connected in series to the output end of a control pulse generating circuit 12, which supplies control pulses to the semiconductor switching element, and further the output end of the parallel circuit is connected to the gate terminal of the second semiconductor switching element via a gate resistor 17, thereby it drives the second semiconductor switching element.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种功率转换装置，其通过控制由二极管的恢复引起的浪涌电压来防止其功率转换效率的下降，并且还防止半导体开关导通时的损耗增加元件。解决方案：该装置包括第一栅极驱动电路7，其利用栅极电阻器确定第一半导体开关元件的开关速度并驱动第一半导体开关元件;第二栅极驱动电路8，其中并联电路，由p沟道型MOS-FET 15构成，开关元件在从第二半导体开关元件的栅极的充电开始起的预定时间和齐纳二极管16之间接通，串联到控制脉冲发生电路12的输出端，控制脉冲发生电路12向半导体开关元件提供控制脉冲，并且并联电路的输出端经由栅极电阻器17连接到第二半导体开关元件的栅极端子，从而驱动第二半导体开关元件。版权所有（C）2009，JPO＆INPIT

19. 发明专利

JP2008022633A Power conversion device 有权
标题翻译：电源转换器件
公开(公告)号：JP2008022633A
公开(公告)日：2008-01-31
申请号：JP2006192360
申请日：2006-07-13
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO HIROSHI , KAWAKAMI TOMOYUKI , IWATA AKIHIKO , FUJIWARA KENJI
IPC分类号： H02M7/00 , H02J3/38 , H02J7/35
摘要： PROBLEM TO BE SOLVED: To control potential fluctuation of a solar light panel in a power conversion device 12, where the voltage generated in the solar light panel is boosted, and AC power is supplied to a system after AC conversion. SOLUTION: A second inverter 11 is connected to one terminal of an AC side in a first inverter 10, where DC voltage obtained by boosting solar light voltage is set to be a first DC power supply 2, and a third inverter 12 to the other terminal, in series. The entire output voltage is obtained as the total sum of generated voltages of the respective inverters 10 to 12. In the second and third inverters 11 and 12, voltages in DC power supplies are substantially equal, and PWM control is performed by using carrier waves whose waveforms match, and the output timings of the output voltage pulses are matched and the fluctuations of midpoint potential of the first DC power supply 2 is controlled. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了控制在太阳能电池板中产生的电压升高的电力转换装置12中的太阳能电池板的电位波动，并且在AC转换之后向系统提供AC电力。解决方案：第一反相器10中的第二反相器11连接到AC侧的一个端子，其中通过升高太阳光电压获得的直流电压被设置为第一直流电源2，第三反相器12至另一个终端，串联。获得整个输出电压作为各个反相器10至12的发电电压的总和。在第二和第三反相器11和12中，直流电源中的电压基本相等，并且通过使用载波进行PWM控制，波形匹配，并且输出电压脉冲的输出定时匹配，并且控制第一直流电源2的中点电位的波动。版权所有（C）2008，JPO＆INPIT

20. 发明专利

JP2007166783A Power transforming apparatus 审中-公开
标题翻译：电力变压器
公开(公告)号：JP2007166783A
公开(公告)日：2007-06-28
申请号：JP2005359809
申请日：2005-12-14
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ITO HIROSHI , IWATA AKIHIKO , KAWAKAMI TOMOYUKI
IPC分类号： H02M7/48 , H02M3/155
摘要： PROBLEM TO BE SOLVED: To realize an apparatus configuration, having high transforming efficiency with reduced loss in a power transforming apparatus for boosting solar-light voltage, transforming it into AC power and supplying the AC power to a load or a system. SOLUTION: AC sides of single-phase inverters 6-8 receiving input DC power of first-third capacitors 3-5 are connected in series, and an output voltage is controlled by the sum of the generated voltage from each of the inverters. The voltage of the first capacitor 3 having the maximum voltage is generated into a desired voltage from the solar voltage via a step-down converter 17 and a booting chopper 11. Bypass circuits 12, 18 and 28 are provided to bypass both or either of the step-down converter 17 and the boosting chopper 11, as necessary. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了实现在用于升压太阳能电压的功率变换装置中具有较高转换效率和降低的损耗的装置配置，将其转换成AC电力并将AC电力提供给负载或系统。解决方案：接收第一至第三电容器3-5的输入直流电源的单相逆变器6-8的交流侧串联连接，并且输出电压由来自每个逆变器的发电电压之和控制。具有最大电压的第一电容器3的电压经由降压转换器17和引导斩波器11从太阳电压产生到期望的电压。旁路电路12,18和28被提供以绕过两者或任何一个降压转换器17和升压斩波器11。版权所有（C）2007，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式