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64 条记录 (耗时 0.009 秒)

    Power conversion apparatus and power conversion method thereof
    31.
    发明公开
    Power conversion apparatus and power conversion method thereof 审中-公开
    Leistungsumwandlungsvorrichtung und Leistungsumwandlungsverfahrendafür

    公开(公告)号：EP2498388A2

    公开(公告)日：2012-09-12

    申请号：EP12158218.3

    申请日：2012-03-06

    申请人： LSIS Co., Ltd.

    发明人： Lee, Jae Ho

    IPC分类号： H02M1/42

    CPC分类号： H02M1/4225 ,  H02M1/081 ,  H02M1/36 ,  H02M7/066 ,  H02M7/1557 ,  Y02B70/126

    摘要： An apparatus/method is provided. The power conversion apparatus includes: a rectifying unit including a silicon-controlled rectifier thyristor (SCR) for rectifying single-phase power externally inputted; a power factor correcting unit configured to correct a power factor of the power rectified by the rectifying unit; and a control signal generating unit configured to detect a zero-crossing point based on the single-phase power inputted and generate a pulse single of which a width increases as time elapses based on the detected zero-crossing point. The rectifying unit rectifies the single-phase power by using the pulse signal inputted to a gate terminal of the SCR.

    摘要翻译： 提供了一种装置/方法。 电力转换装置包括：整流单元，包括用于整流外部输入的单相电力的硅控整流晶闸管（SCR）; 功率因数校正单元，用于校正由整流单元整流的功率的功率因数; 以及控制信号生成单元，被配置为基于输入的单相功率来检测过零点，并且基于检测到的过零点产生宽度随着时间流逝而增加的脉冲单位。 整流单元通过使用输入到SCR的栅极端子的脉冲信号来对单相功率进行整流。

    HIGH-FREQUENCY GENERATOR
    32.
    发明公开
    HIGH-FREQUENCY GENERATOR 有权
    高频发生器

    公开(公告)号：EP1509984A1

    公开(公告)日：2005-03-02

    申请号：EP03732674.1

    申请日：2003-05-29

    申请人： Bowman Power Systems Limited

    发明人： HARRIS, Martyn R.,Bowman Power Systems Limited ,  REED, Matthew J.,Bowman Power Systems Limited

    IPC分类号： H02J3/18 ,  H02M5/45

    CPC分类号： H02P9/10 ,  H02J3/16 ,  H02J3/1807 ,  H02M5/40 ,  H02M5/45 ,  H02M7/066 ,  Y02E40/32 ,  Y02E40/34

    摘要： The invention provides an electrical generating system comprising an AC electrical generator (G) having an output, the system being characterised by a capacitor arrangement (Ca) which is provided at the output of the generator and which is arranged so as to offset a drop of voltage from no-load to full-load occurring at the output of the generator, whereby to permit increased power to be drawn from the generator without an unacceptable drop in output voltage and without exceeding permissible temperature limits for the generator winding. As described, the generator (G) is a permanent-magnet generator having a plurality of terminals and associated output lines, and the capacitor arrangement comprises a respective capacitor connected in series in one or more of the output lines, the value of the capacitance being selected such that a drop of voltage from no-load to full-load occurring at the associated generator terminal is substantially offset at an output terminal of the said capacitor.

    Controlled-inductance regulator for switching power supplies
    33.
    发明公开
    Controlled-inductance regulator for switching power supplies 失效
    用于切换电源的控制电感调节器

    公开(公告)号：EP0357411A3

    公开(公告)日：1990-10-31

    申请号：EP89308799.9

    申请日：1989-08-31

    申请人： ZYTEC CORPORATION

    发明人： Knights, Michael A. ,  Beecroft, John W. ,  Bishop, Walter W.

    IPC分类号： G05F1/38 ,  H03F9/06 ,  H02M3/28 ,  H02M3/155

    CPC分类号： H03F9/02 ,  H01F29/14 ,  H02M7/066 ,  H03K17/80

    摘要： A post secondary magnetic amplifier circuit for operation at frequencies at or above 100 kHz with minimal losses is described. A magnetic amplifier is used to control the post-secondary current to an LC filter in which the magnetic amplifier is constructed using an non-nickel core material such as ferrite having a very narrow B-H operating curve (flat loop) in which the remanence (residual magnetism) is below 1000 gauss. The magnetic amplifier then operates as a controlled inductance so that saturation is approached slowly.

    摘要翻译： 描述了以最小的损耗在等于或大于100kHz的频率下操作的后级磁放大器电路。 使用磁放大器来控制到LC滤波器的次级电流，其中使用非镍芯材料构成磁放大器，例如具有非常窄的BH工作曲线（平环）的铁氧体，其中剩磁（残余） 磁性）低于1000高斯。 然后磁放大器作为受控电感工作，使得缓慢接近饱和。

    ELECTRICAL POWER SOURCE
    34.
    发明公开
    ELECTRICAL POWER SOURCE 失效
    电源。

    公开(公告)号：EP0215090A1

    公开(公告)日：1987-03-25

    申请号：EP86901947.0

    申请日：1986-03-14

    申请人： UNIQEY (HONGKONG) LIMITED

    发明人： YAMASHITA, Toshihiko 4-43, 2-chome, Shibata

    IPC分类号： G05F1 ,  G05F3 ,  H02M1 ,  H02M7

    CPC分类号： H02M7/217 ,  G05F1/59 ,  G05F3/18 ,  H02M1/10 ,  H02M7/066 ,  H02M7/08

    摘要： Une source d'énergie est capable de fournir une sortie constante de courant continu lorsqu'elle est alimentée avec des entrées diverses de courant alternatif. Un dispositif de conversion fournit un certain nombre de sorties ayant des tensions diverses correspondant à la tension d'entrée. Un certain nombre de lignes de circuit en parallèle sont connectées chacune à une de ces sorties. Chaque ligne de circuit en parallèle comprend un redresseur, un régulateur de tension maximale et un dispositif de courant de non-retour. Les sorties de ces lignes sont connectées à une sortie commune pour donner l'alimentation constante en tension de courant continu. Chaque régulateur de tension a une tension fixe de régulation parmi une série de tensions échelonnées proches de la tension constante requise de courant continu, la tension la plus basse ne dépassant pas la tension atteinte pour la ligne connectée à la sortie la plus haute du dispositif de conversion lorsque l'alimentation d'entrée est à l'extrémité inférieure de la plage de tensions de courant alternatif. La tension suivante, supérieure à la tension la plus basse, est atteinte pour la ligne connectée à la sortie élevé suivante du dispositif de conversion, et, au cas où il existe plus de deux lignes de circuit en parallèle, la tension suivante est plus élevée et est atteinte pour la ligne connectée à la sortie élevée suivante du dispositif de conversion et ainsi de suite, jusqu'à couvrir l'éventail de tensions possibles d'entrée de courant alternatif.

    Active rectification output capacitor balancing
    38.
    发明公开
    Active rectification output capacitor balancing 审中-公开
    主动整流器的输出电容平衡的电压

    公开(公告)号：EP2509209A3

    公开(公告)日：2015-09-30

    申请号：EP12162891.1

    申请日：2012-04-02

    申请人： Hamilton Sundstrand Corporation

    发明人： Fattal, Souren G.

    IPC分类号： H02M7/217 ,  H02M1/42 ,  H02M7/219

    CPC分类号： H02M7/066 ,  H02M1/4216 ,  H02M7/219 ,  H02M2001/0012 ,  Y02B70/126 ,  Y02B70/1408

    摘要： An active rectification system includes an active rectifier (102) that converts an alternating current (AC) input to a direct current (DC) output. The active rectifier includes a plurality of switching devices (S 1 , S 2 , S 3 ) and at least a first output capacitor (C 1 ) and a second output capacitor (C 2 ) connected at the DC output of the active rectifier. A controller (101) includes a DC output regulation portion and an output capacitor balancing portion, wherein the DC output regulation portion monitors the DC output and in response generates control signals for regulating the DC output to a desired value. The output capacitor balancing portion monitors first and second output capacitor voltages associated with the first and second output capacitors, respectively, and generates an accumulated adjustment value that modifies the control signals provided by the DC output regulation portion to balance the first and second output capacitor voltages.

    POWER CONVERSION APPARATUS, MOTOR DRIVE APPARATUS, AND REFRIGERATION AIR-CONDITIONING APPARATUS
    40.
    发明公开
    POWER CONVERSION APPARATUS, MOTOR DRIVE APPARATUS, AND REFRIGERATION AIR-CONDITIONING APPARATUS 审中-公开
    雷神星星，摩托罗拉

    公开(公告)号：EP2696487A4

    公开(公告)日：2015-08-05

    申请号：EP11862932

    申请日：2011-04-08

    申请人： MITSUBISHI ELECTRIC CORP

    发明人： SHIMOMUGI TAKUYA ,  ARISAWA KOICHI ,  SHINOMOTO YOSUKE ,  YAMAKAWA TAKASHI

    IPC分类号： H02M3/155 ,  H02M1/00 ,  H02M1/32 ,  H02M1/42 ,  H02M3/156 ,  H02M3/158 ,  H02M7/06 ,  H02M7/12 ,  H02P27/00 ,  H02P27/06

    CPC分类号： H02M7/066 ,  H02M1/32 ,  H02M1/4225 ,  H02M3/156 ,  H02M3/1584 ,  H02M2001/0051 ,  H02M2001/325 ,  H02M2003/1586 ,  H02P27/00 ,  H02P27/06 ,  Y02B70/126 ,  Y02B70/1491

    摘要： A power converting device includes a rectifying circuit 2 that rectifies voltage of an alternating-current power supply 1; smoothing means 8 that smoothes output voltage from the rectifying circuit 2; short-circuiting means 4 that is disposed more closely to the alternating-current power supply 1 than the smoothing means 8 and that short-circuits the alternating-current power supply 1 and controls at least one of electric current and voltage; a reactor 3 that is disposed more closely to the alternating-current power supply 1 than the short-circuiting means 4; one or more backflow preventing elements 5 that prevent electric current from flowing backward from a load 9 side toward the alternating-current power supply 1; commutating means 7 for performing a commutation operation for causing electric current to flow toward a different path that is connected in parallel with the one or more backflow preventing elements 5; malfunction detecting means 105 for detecting a malfunction of the commutating means 7; and switching control means 103 that performs operation control of the commutating means 7 in accordance with detection by the malfunction detecting means 105.

    摘要翻译： 电力转换装置包括对交流电源1的电压进行整流的整流电路2; 平滑装置8，其对整流电路2的输出电压进行平滑; 短路装置4，其布置成比平滑装置8更靠近交流电源1，并且使交流电源1短路并控制电流和电压中的至少一个; 比短路装置4更靠近交流电源1设置的电抗器3; 一个或多个防止电流从负载9侧朝向交流电源1向后流动的防回流元件5; 换向装置7，用于进行换向运转，使电流流向与一个或多个防回流元件5并联连接的不同路径; 用于检测换向装置7的故障的故障检测装置105; 以及切换控制装置103，其根据故障检测装置105的检测来执行换向装置7的操作控制。