会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • 電源制御用半導体装置
    • 用于电源控制的半导体器件
    • WO2016132930A1
    • 2016-08-25
    • PCT/JP2016/053445
    • 2016-02-05
    • ミツミ電機株式会社
    • 松田 裕樹村田 幸雄
    • H02M3/28
    • H02H9/025G01R31/025G01R31/027H02H7/1257H02M1/088H02M1/143H02M1/32H02M3/28
    •  課題は、スイッチング制御方式の電源制御用ICにおいて電流検出端子がオープン状態になったりトランスがショートした場合に電源装置を安全に停止させるようにすることにある。 一次側巻線に間欠的に電流を流すためのスイッチング素子をオン、オフ制御する信号を生成するオン、オフ制御信号生成回路(33,34)と、トランスの一次側巻線に流れる電流に比例した電圧が入力される電流検出端子と、電流検出端子と内部電源電圧もしくはそれに応じた電圧が印加される端子との間に設けられた高インピーダンスのプルアップ手段と、電流検出端子の電圧と所定の電圧とを比較して電流検出端子の電圧が所定の電圧よりも高いことを検出した場合に電流検出端子の異常と判定する端子監視回路とを設け、端子監視回路が電流検出端子の異常を検出するとオン、オフ制御信号生成回路の信号生成動作を停止させ電源制御用ICの再起動を回避し電源装置を停止し続けるように構成した。
    • 本发明解决了当开关控制方式电源控制IC中当电流检测端子进入断开状态或变压器短路时安全停止供电装置的问题。 提供:用于产生用于对用于间歇地引导电流通过初级侧线圈的开关元件的开/关控制的信号的开/关控制信号生成电路(33,34) 输入与流过变压器的一次侧线圈的电流成比例的电压的电流检测端子; 设置在电流检测端子与施加有内部电源电压或与其对应的电压的端子之间的高阻抗上拉装置; 以及终端监视电路,用于比较电流检测端子的电压和预定电压,并且在检测到电流检测端子的电压高于预定电压时,确定电流检测端子有故障。 当终端监视电路检测到电流检测端子的故障时,开关控制信号发生电路的信号生成动作停止,防止电源控制IC重新启动,电源装置保持停止。
    • 3. 发明申请
    • FAULT CONTROL CIRCUIT FOR SWITCHED POWER SUPPLY
    • 用于开关电源的故障控制电路
    • WO1998021814A1
    • 1998-05-22
    • PCT/US1997021010
    • 1997-11-12
    • THOMSON CONSUMER ELECTRONICS, INC.
    • THOMSON CONSUMER ELECTRONICS, INC.WILLIAMS, Kevin, Michael
    • H02M03/335
    • H02M1/32H02H7/1257H02M3/33523
    • A voltage source (RAW B ), a transformer (T1) and a switching controller (U1) are coupled for switched mode generation of a regulated output supply voltage. A switching circuit (R5, R6, R7, Q3, Q4, Z3, U3) responsive to an on/off signal (+23 V-RUN) turns the power supply on and off by establishing a conductive condition in a conductive path. A fault detector (42) establishes a non-conductive condition in a part of the conduction path responsive to an overload condition. A delay circuit (40) establishes a conductive condition in an auxiliary conduction path for a period of time after the power supply is turned on. The auxiliary conduction path becomes non-conductive when the fault detector establishes a conductive condition in the part of the conduction path. The part of the conduction path remains conductive absent an overload condition. A latch arrangement including the delay circuit maintains the non-conductive condition in the auxiliary conduction path until the power supply is turned off.
    • 耦合电压源(RAW B +),变压器(T1)和开关控制器(U1),用于产生调节输出电源电压的开关模式。 响应于开/关信号(+ 23V-RUN)的开关电路(R5,R6,R7,Q3,Q4,Z3,U3)通过在导电路径中建立导电条件来打开和关闭电源。 故障检测器(42)响应于过载条件在导通路径的一部分中建立非导通状态。 延迟电路(40)在电源接通之后的一段时间内在辅助导电路径中建立导电状态。 当故障检测器在导电路径的一部分中建立导电状态时,辅助导电路径变得不导通。 传导路径的一部分在没有过载条件的情况下保持导通。 包括延迟电路的锁存装置保持辅助传导路径中的非导通状态,直到电源关闭。
    • 5. 发明申请
    • FAULT RIDE THROUGH IN A MARINE POWER DISTRIBUTION SYSTEM
    • 通过海上功率分配系统的故障
    • WO2017009608A1
    • 2017-01-19
    • PCT/GB2016/052056
    • 2016-07-08
    • GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED
    • LONG, TengMUPAMBIREYI, Ushindibaba
    • H02M1/32H02H7/26H02H9/02H02J3/00H02M5/458
    • H02H9/08B60L3/0084B60L2200/32H02H7/1227H02H7/1257H02J3/00H02J3/006H02M1/32H02M5/458H02M7/53871H02P27/08Y04S10/525Y10S903/93
    • A power distribution system (30) having one or more phases is described. The power distribution system (30) has a power converter (46) with a plurality of semiconductor switching devices per phase, a PWM controller (52), and a current limitation controller (58). The current limitation controller (58) is adapted, at least when a short-circuit fault is detected, to calculate the difference between a measured current (la, lb, Ic) for each phase and a reference current (Ia_max, Ib_max, Ic_max) for the corresponding phase. If the calculated difference is located outside a predetermined current range centred about the reference current (Ia_max, Ib_max, Ic_max) for the corresponding phase, the current limitation controller (58) will allow the semiconductor switching devices of the corresponding phase to be turned on and off by the PWM controller (52). Otherwise, if the calculated difference is located inside the predetermined current range, the current limitation controller (58) will control the semiconductor switching devices for the corresponding phase to be turned off irrespective of the PWM control strategy applied by the PWM controller (58).
    • 描述具有一个或多个相的配电系统(30)。 配电系统(30)具有每相具有多个半导体开关装置的电力转换器(46),PWM控制器(52)和电流限制控制器(58)。 至少当检测到短路故障时,电流限制控制器(58)适用于计算每个相位的测量电流(1a,lb,1c)和参考电流(Ia_max,Ib_max,Ic_max)之间的差值, 为相应阶段。 如果计算出的差异位于以对应相位的参考电流(Ia_max,Ib_max,Ic_max)为中心的预定电流范围之外,则电流限制控制器(58)将允许相应相位的半导体开关器件导通, 由PWM控制器(52)关断。 否则,如果计算出的差值位于预定电流范围内,则电流限制控制器(58)将控制对应相位的半导体开关器件将被截止,而与PWM控制器(58)施加的PWM控制策略无关。
    • 6. 发明申请
    • CIRCUIT INTERRUPTION DEVICE
    • 电路中断装置
    • WO2014029886A2
    • 2014-02-27
    • PCT/EP2013/067584
    • 2013-08-23
    • ALSTOM TECHNOLOGY LTD
    • DAVIDSON, Colin CharnockDUPRAZ, Jean-Pierre
    • H02H3/087H02H7/12
    • H02H3/087H02H7/12H02H7/1213H02H7/1257H02H9/02H02H9/041H02J3/36H02M1/32H02M2001/0006H02M2001/348H03K17/08148H03K17/167H03K17/168H03K17/74H03K2217/0081Y02E60/60
    • An extinguishing branch (28) for an electrical circuit (32) includes: a snubber circuit (36) including an energy storage limb (40), wherein the energy storage limb (40) includes first and second energy storage limb portions separated by a first junction (46) to define a first voltage divider, and each energy storage limb portion includes at least one energy storage device (48,50); and an arrester limb (38) connected across the energy storage limb (40), wherein the arrester limb (38) includes first and second arrester limb portions separated by a second junction (52) to define a second voltage divider, and each arrester limb portion includes at least one arrester element (54,56), wherein the first and second junctions (46,52) are connected to define a voltage divider bridge, and the voltage divider bridge is electrically coupleable to the electrical circuit (32) so as to provide, in use, a driving voltage to drive the electrical circuit (32).
    • 用于电路(32)的灭火支路(28)包括:缓冲电路(36),其包括能量存储臂(40),其中所述储能臂(40)包括第一和第二能量存储肢体部分, (46)以限定第一分压器,并且每个能量存储肢体部分包括至少一个能量存储装置(48,50); 以及连接在能量存储肢体(40)上的避雷器(38),其中所述避雷器臂(38)包括由第二接合部(52)分隔开以限定第二分压器的第一和第二避雷器肢体部分,并且每个避雷器臂 部分包括至少一个避雷器元件(54,56),其中所述第一和第二结(46,52)连接以限定分压器桥,并且所述分压器桥电连接到所述电路(32),以便 在使用中提供用于驱动电路(32)的驱动电压。
    • 8. 发明申请
    • OVER-VOLTAGE PROTECTION ARRANGEMENT FOR A LOW VOLTAGE POWER SUPPLY
    • 低电压电源的过电压保护装置
    • WO2004034541A1
    • 2004-04-22
    • PCT/US2003/031965
    • 2003-10-09
    • SITE ELECTRONICS, INC.CARR, Sheldon, P.
    • CARR, Sheldon, P.
    • H02H7/125
    • H02H7/1257H02H3/023H02H5/043
    • An electrical power supply includes a power input interconnected with a power source that supplies input power having a voltage exceeding a predetermined voltage threshold, e.g. a low voltage threshold. A power conversion arrangement converts the input power to output power having a voltage at or below the voltage threshold, and the low voltage power is supplied to a power outlet. An over-voltage protection arrangement, in the form of a voltage sensing circuit, is operable to detect the voltage of output power from the power supply and to discontinue the supply of power to the power outlet in the event power supplied to the power outlet has a voltage that exceeds the low voltage threshold. The over-voltage protection circuit is incorporated in a circuit board adapted to be plugged into a primary circuit board of the power supply. The over-voltage protection circuit establishes a path through which power is communicated from the power conversion arrangement to the power outlet, and creates a short circuit condition when power supplied to the power outlet exceeds the low voltage threshold.
    • 电源包括与提供具有超过预定电压阈值的电压的输入功率的电源互连的电力输入,例如电源。 低电压阈值。 功率转换装置将输入功率转换为具有等于或低于电压阈值的电压的输出功率,并且将低电压功率提供给电源插座。 以电压感测电路的形式的过电压保护装置可操作以检测来自电源的输出电力的电压,并且在提供给电源插座的电力的情况下停止向电源插座提供电力 超过低电压阈值的电压。 过电压保护电路被并入适于插入电源的主电路板的电路板中。 过电压保护电路建立了从电力转换装置向电源插座传送电力的路径,并且当供给到电源插座的电力超过低电压阈值时产生短路状态。