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    POWER SUPPLY SYSTEM
    1.
    发明公开
    POWER SUPPLY SYSTEM 有权
    电力系统

    公开(公告)号：EP1413040A2

    公开(公告)日：2004-04-28

    申请号：EP02730628.1

    申请日：2002-05-28

    申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： SCHEEL, Thomas ,  HATTRUP, Christian ,  MAERTENS, Olaf ,  GERCKE, Thorsten

    IPC分类号： H02M3/337

    CPC分类号： H02M7/5236 ,  H02M2001/0012 ,  H05G1/10 ,  H05G1/58

    摘要： Two proposals are made for power supply systems comprising at least one resonant inverter and one control unit. According to the first proposal the power supply system comprises two inverters and produces two output voltages, the control circuit processing as an actual value on the one hand the sum of and on the other hand the difference between the two output voltages. According to the second proposal a control circuit does not directly process the controlled variables for a power supply system comprising at least one inverter, but difference units for controlled variables determine the deviations from a preceding sampling instant and these difference values are processed. Also the correcting variable calculated in this way is a difference value which is converted into a correcting variable value by a correcting variable summing unit. The two proposals can be advantageously combined. As an important improvement is proposed the use of a limiting controller which generally becomes active in case of imminent transgression of a maximum value and which limits the actuation. The control circuit is preferably used as a digital control circuit for a state space control.

    Power supply
    2.
    发明公开
    Power supply 审中-公开
    Stromversorgung

    公开(公告)号：EP1071199A2

    公开(公告)日：2001-01-24

    申请号：EP00115770.0

    申请日：2000-07-21

    申请人： SHINDENGEN ELECTRIC MANUFACTURING COMPANY, LIMITED

    发明人： Matsuda, Yoshiaki, Shindengen Electric Man Co Ltd. ,  Endo, Taisuke, Shindengen Electric Man Co Ltd.

    IPC分类号： H02M3/337

    CPC分类号： H02M3/337 ,  H02M3/33592 ,  H02M7/5236 ,  H02M2001/0048 ,  Y02B70/1475 ,  Y02B70/1491

    摘要： There is provided a switching power supply having low loss.
    In a power supply of the present invention, two sub switching elements (101a, 101b; 301a, 301b) connected in series are then connected in parallel with a bridge cicruit (110; 310), and a resonance coil (108; 308) and a sub primary winding (106) or an auxiliary primary winding are connected between a connection point (C; F) of the series connection circuits and an output terminal (B; E) of the bridge ciruit (110. 310). Resonance capacitors (113a, 113b, 114a, 114b; 313a, 313b, 314a, 314b) are respectively connected in parallel with each main switching element (111a, 111b, 112a, 112b; 311a, 311b, 312a, 312b) constituting the bridge circuit (310), so as to resonate with the resonance coil (108; 308). Voltage across the two ends of A phase and B phase sub secondary windings (107a, 107b) magnetically coupled to the sub primary winding (106) are clamped to the supply voltage, a fixed voltage in proportion to the turns ratio is generated in the sub primary winding (106), a voltage applied to the resonance coil (109) becomes small and current fluctuation becomes small. In the other embodiment the auxiliary primary winding (306) is magnetically coupled to a main primary winding (331) H-bridge connected to the main bridge circuit (310), wherein the main bridge circuit (310) is controlled during resonance of the resonance coil (308), and the resonance is terminated using a voltage induced in the auxiliary primary winding (306).

    摘要翻译： 提供了具有低损耗的开关电源。 在本发明的电源中，串联连接的两个副开关元件（101a，101b，301a，301b）与桥式电容器（110; 310）和谐振线圈（108; 308）和 副串联（106）或辅助初级绕组连接在串联连接电路的连接点（C; F）和桥形电路（110310）的输出端子（B; E）之间。 谐振电容器（113a，113b，114a，114b; 313a，313b，314a，314b）分别与构成桥接电路的各主开关元件（111a，111b，112a，112b; 311a，311b，312a，312b） （310），以便与谐振线圈（108; 308）共振。 磁耦合到次级初级绕组（106）的A相和B相次级绕组（107a，107b）的两端的电压被钳位到电源电压，在子级中产生与匝数比成比例的固定电压 初级绕组（106），施加到谐振线圈（109）的电压变小，电流波动变小。 在另一个实施例中，辅助初级绕组（306）磁耦合到连接到主桥电路（310）的主初级绕组（331）H桥，其中主谐振电路（310）在共振共振期间被控制 线圈（308），并且使用在辅助初级绕组（306）中感应的电压终止谐振。

    WIDE LOAD MATCHING CAPABILITY POWER SUPPLY
    3.
    发明公开
    WIDE LOAD MATCHING CAPABILITY POWER SUPPLY 失效
    与宽的负载适应能力的电源。

    公开(公告)号：EP0680671A1

    公开(公告)日：1995-11-08

    申请号：EP94905329.0

    申请日：1993-12-01

    申请人： AJAX MAGNETHERMIC CORPORATION

    发明人： HAVAS, George ,  VAUGHN, Arthur, L.

    IPC分类号： H02M7 ,  H05B6

    CPC分类号： H05B6/04 ,  H02M7/5236

    摘要： A high frequency power inverter comprises a power supply (20), a thyristor (SCR5 or SCR6) for switching the energy from the power supply to a load (10) and a neutral capacitor (C3) for storing energy cyclically to assure reverse voltage is applied to the thyristor (SCR5 or SCR6). A clamp circuit (L9, L10, D3, D4) is comprised of an inductor (L9 or L10) having a relatively large value for permitting a gradual leaking of the capacitor voltage during an inverting of the power supply voltage to the load (10) so that the capacitor (C3) can ring-up to a higher value than the supply voltage. The inductor (L9, L10) is selected so that under all conditions, the voltage on the capacitor (C3) will be safely larger than the power supply voltage plus a load voltage peak for a time long enough to assure thyristor turn off.

    UMRICHTERSCHALTUNG UND VERFAHREN ZUR STEUERUNG DES UMRICHTERS
    4.
    发明公开
    UMRICHTERSCHALTUNG UND VERFAHREN ZUR STEUERUNG DES UMRICHTERS 失效
    转换电路和方法，用于控制驱动器。

    公开(公告)号：EP0483327A1

    公开(公告)日：1992-05-06

    申请号：EP91909696.0

    申请日：1991-05-17

    申请人： ABB CEAG LICHT- UND STROMVERSORGUNGSTECHNIK GMBH

    发明人： FERREIRA, Jan Abraham ,  VAN WYK, Jacobus Daniel

    IPC分类号： H02M7

    CPC分类号： H02M7/5236

    摘要： L'invention concerne un circuit mutateur pour l'alimentation d'une charge inductive et un procédé de commande du mutateur. L'objet de l'invention est d'obtenir un circuit et un procédé de commande de celui-ci qui sollicitent de manière particulièrement réduite les commutateurs commandables du circuit et entraînent des pertes minimes de commutation. A cet effet, un mutateur à résonance comprend un circuit résonant avec un inducteur saturable, ce qui permet la régénération en sens inverse de diodes connectées en antiparallèle aux commutateurs commandables. Ce mutateur est particulièrement utile pour des applications dans des plages élevées de puissance à plusieurs kilowatts.

    METHOD FOR CONTROLLING A POWER CONVERTER USING AN AUXILIARY RESONANT COMMUTATION CIRCUIT
    9.
    发明授权
    METHOD FOR CONTROLLING A POWER CONVERTER USING AN AUXILIARY RESONANT COMMUTATION CIRCUIT 失效
    控制方法用于功率转换器使用一个HILFSKOMMUTIERUNGSKREISES。

    公开(公告)号：EP0500818B1

    公开(公告)日：1995-10-18

    申请号：EP91909925.9

    申请日：1991-05-10

    申请人： GENERAL ELECTRIC COMPANY

    发明人： DEDONCKER, Rik Wivina Anna Adelson ,  LYONS, James Patrick Francis

    IPC分类号： H02M7/5387 ,  H02M7/523

    CPC分类号： H02M7/4826 ,  H02M7/5152 ,  H02M7/5236 ,  H02M2007/4811

    摘要： A method for controlling a power converter and an associated auxiliary commutation circuit ensures soft-switching of all switching devices employed therein. Such a power converter includes an inverter with at least two main switching devices per phase. Across each main switching device are connected an antiparallel diode and a relatively large snubber capacitor. The auxiliary resonant commutation circuit comprises two antiparallel-coupled auxiliary switching devices coupled in series with a resonant circuit including an inductor and the snubber capacitors. The gating and conduction times of the main and auxiliary switching devices are controlled so as to add boosting energy to the resonant operation, thus ensuring that the inverter output voltage at least reaches the positive and negative inverter rail voltages during each resonant commutation cycle. As a result, the control achieves commutation of the converter pole with substantially no switching losses.