公开(公告)号：US20040257742A1

公开(公告)日：2004-12-23

申请号：US10491747

申请日：2004-04-05

发明人： Peter Zeller ,  Falko Schietzsch ,  Jutta Barlage

IPC分类号： H02H009/06

CPC分类号： H02H9/043 ,  H02H9/042

摘要： The voltage limiter is used to effectively limit short-term and long-term overvoltages. Said voltage limiter has a varistor (1) and a discharge path which can be connected in parallel with the varistor. The discharge path contains a switching point (4), which is preferably in the form of a semiconductor switch and can be loaded with an uninterrupted current, and which can be closed above a limit value of a signal which is dependent on an operating variable of the varistor (1). The varistor (1) is arranged in a first area (24) and the switching point (4) is arranged in a second area (26) of two areas (24, 26, 28) which are at an axial distance from one another in the direction of an axis of symmetry (20). Means (5) for operating the switching point (4) are accommodated in a third area (28), which is at a defined potential. The arrangement of the components (1, 4, 5) of the voltage limiter in separate areas (24, 26, 28) results in a compact, modular construction, and those components of the voltage limiter which are subject to power loading, namely the varistor (1) and the switching point (5), are physically separated from one another, so that they can be cooled independently of one another. Since the operating means (5), which generally operate electronically, are accommodated in an electromagnetically shielded area (28), the operational reliability of the voltage limiter is at the same time improved, and, in particular, undesirable high-energy electromagnetic interference is kept away from this area (28).

摘要翻译： 电压限制器用于有效地限制短期和长期过电压。 所述限压器具有可变压敏电阻（1）和可与压敏电阻并联的放电路径。 放电路径包含切换点（4），其优选地是半导体开关的形式，并且可以被加载不间断的电流，并且其可以被闭合在高于取决于以下的信号的操作变量的信号的极限值 压敏电阻（1）。 变阻器（1）布置在第一区域（24）中，并且切换点（4）布置在两个区域（24,26,28）的彼此轴向距离的第二区域（26）中， 对称轴的方向（20）。 用于操作切换点（4）的装置（5）被容纳在具有限定电位的第三区域（28）中。 电压限制器的组件（1,4,5）在分开的区域（24,26,28）中的布置导致紧凑的模块化结构，以及经受功率负载的限压器的那些部件，即 变阻器（1）和开关点（5）在物理上彼此分离，使得它们可以彼此独立地被冷却。 由于通常以电子方式操作的操作装置（5）被容纳在电磁屏蔽区域（28）中，所以限制器的操作可靠性同时提高，特别是不期望的高能电磁干扰是 远离这个地区（28）。

公开(公告)号：US20040218333A1

公开(公告)日：2004-11-04

申请号：US10480904

申请日：2004-06-14

发明人： Emma Louise Innes ,  Stephen Mark Iskander

IPC分类号： H02H009/06

CPC分类号： H02H9/021 ,  H05B6/666

摘要： A system to protect electrical circuits from rapid changes of voltage associated with a fault in an electrical load comprises an inductor placed in series between a drive circuit and load. The inductor is designed to be inefficient or lossy when the inductor core is magnetised. Magnetisation of the core only occurs when a rapid change in voltage is applied across the inductor coils. Because the inductor is inefficient, the induced impedance in the inductor increases rapidly during a fault event. The overall impedance of the circuit increases rapidly and the rapid change in voltage is dissipated at a rate associated with the CR constant of the circuit.

摘要翻译： 保护电路免受电负载故障的电压快速变化的系统包括串联在驱动电路和负载之间的电感器。 电感器被设计为在电感器磁芯被磁化时效率低或有损耗。 磁芯的磁化仅在电感线圈上施加快速电压变化时发生。 由于电感效率低下，在故障事件期间，电感中的感应阻抗会迅速增加。 电路的总体阻抗迅速增加，电压的快速变化以与电路的CR常数相关联的速率消散。

公开(公告)号：US20040141276A1

公开(公告)日：2004-07-22

申请号：US10693257

申请日：2003-10-24

发明人： Robert J. Custer ,  Claude Abraham

IPC分类号： H02H009/06

CPC分类号： H02H9/04 ,  H02H11/003

摘要： An electrical transient protection circuit in a vehicle includes an input connector, which receives an input voltage, a means for absorbing, which is electrically connected to the input connector, and a means for blocking, which is electrically connected to the input connector. At least one of the means for absorbing and the means for blocking conditions the input voltage by suppressing a voltage transient and producing a corresponding output voltage. The voltage transient is up to i) about 8 times the input voltage through a source impedance of about 0.4null for about 0.5 seconds, ii) about 50 times the input voltage through a source impedance of about 20.0null for about 1.0 millisecond, and iii) about 50 times a negative of the input voltage through a source impedance of about 20.0null for about 1.0 millisecond. An output connector delivers the output voltage, which is about 110% of the input voltage, to an electrical component on the vehicle.

摘要翻译： 车辆中的电气瞬态保护电路包括接收输入电压的输入连接器，电连接到输入连接器的吸收装置和电连接到输入连接器的用于阻挡的装置。 用于吸收的装置和阻挡装置中的至少一个通过抑制电压瞬变并产生相应的输出电压来限制输入电压。 电压瞬变达到i）大约0.5O秒的源阻抗约为输入电压的约8倍，ii）大约为1.0毫秒的源约为20.0Om的源阻抗的输入电压的约50倍，和iii ）大约是通过大约2.0Omega的源阻抗的大约1.0毫秒的输入电压的负的约50倍。 输出连接器将输出电压（约为输入电压的110％）传送到车辆上的电气部件。

公开(公告)号：US20040066599A1

公开(公告)日：2004-04-08

申请号：US10623332

申请日：2003-07-18

发明人： Frank Werner ,  Norbert Krost ,  Jurgen Boy

IPC分类号： H02H009/06

CPC分类号： H01C7/12 ,  H01C7/123 ,  H01T4/12

摘要： A protective element safely dissipates overvoltages which is comprised of a parallel connection of a varistor and an surge arrester. To reduce the capacity of the protective element, the varistor is fashioned as a disc and arranged between a contact pin and the surge arrester. An electrical isolation between contact pin and varistor is ensured by an electrically isolated spacer, in which openings for electrical contact elements are provided to connect the varistor with the cup and the contact pin with the surge arrester. The surge arrester and the spacer are preferably fit positively into the cup.

摘要翻译： 保护元件安全地消除由压敏电阻和避雷器的并联连接构成的过电压。 为了降低保护元件的容量，变阻器被形成为盘并且布置在接触销和电涌放电器之间。 接触针和变阻器之间的电气隔离通过电隔离的隔离件确保，其中提供用于电接触元件的开口以将压敏电阻与杯和接触销连接到电涌放电器。 电涌放电器和间隔件优选地正确地配合到杯中。

公开(公告)号：US20040057187A1

公开(公告)日：2004-03-25

申请号：US10667409

申请日：2003-09-23

申请人： YAZAKI CORPORATION

发明人： Hidehiko Kuboshima ,  Hirotaka Fukushima ,  Sakai Yagi

IPC分类号： H02H009/06

CPC分类号： H01R9/032 ,  H01R13/5845 ,  H01R13/6593 ,  Y10S439/939

摘要： An electromagnetic shielding structure includes a sheath wire having a conductive wire and an insulative sheath covering the conductive wire; a terminal fitting clamping the conductive wire exposed from the insulative sheath, and the terminal fitting passing through a conductive mounting member connected to ground; a molding member molded to cover the exposed conductive wire and the terminal fitting, and having a first recess and a second recess; a conductive braid having a tubular shape, and covering the sheath wire and the molding member for absorbing an electromagnetic wave generated from the conductive wire; a first sealing portion provided in the first recess so as to adhere the molding member and the insulative sheath for securing a waterproof performance; a second sealing portion provided in the second recess so as to adhere the molding member and the terminal fitting for securing an oil proof and waterproof performance; and a conductive shell covering the molding member so that the conductive braid is electrically connected to the conductive mounting member. The first recess is formed on a first end portion of the molding member. The first end portion contacts the sheath wire. The second recess is formed on a second end portion of the molding member. The second end portion contacts the terminal fitting.

摘要翻译： 电磁屏蔽结构包括具有导线的护套线和覆盖导线的绝缘护套; 夹持从绝缘护套露出的导线的端子配件，以及通过连接到地的导电安装构件的端子接头; 模制构件，其模制成覆盖所述暴露的导电线和所述端子接头，并且具有第一凹部和第二凹部; 导电编织物，其具有管状形状，并且覆盖所述护套线和所述模制构件，用于吸收由所述导线产生的电磁波; 第一密封部，设置在所述第一凹部中，以便将所述模制构件和所述绝缘护套粘合以确保防水性能; 第二密封部，设置在所述第二凹部中，以便将所述模制构件和所述端子接头粘合以确保防油和防水性能; 以及覆盖所述模制构件的导电外壳，使得所述导电编织层电连接到所述导电安装构件。 第一凹部形成在模制构件的第一端部上。 第一端部接触护套线。 第二凹部形成在模制构件的第二端部上。 第二端部接触端子接头。

公开(公告)号：US20040057184A1

公开(公告)日：2004-03-25

申请号：US10612872

申请日：2003-07-07

发明人： Terry Dishongh ,  Prateek Dujari ,  Bin Lian ,  Damion Searls

IPC分类号： H02H009/06

CPC分类号： H05K1/167 ,  H01L23/49827 ,  H01L23/642 ,  H01L23/647 ,  H01L2924/0002 ,  H01L2924/3011 ,  H05K1/162 ,  H05K3/4046 ,  H05K2201/0187 ,  H05K2201/0323 ,  H05K2201/09536 ,  H01L2924/00

摘要： A circuit board includes two planes. A via spans the planes, and an impedance component is placed in the via. The impedance component is coupled to both of the planes. The impedance component provides an impedance between the planes without the use of traces or hand soldering of components.

摘要翻译： 电路板包括两个平面。 A通道跨越平面，并且阻抗分量被放置在通孔中。 阻抗分量耦合到两个平面。 阻抗分量在平面之间提供阻抗，而不使用部件的迹线或手工焊接。

公开(公告)号：US20040057183A1

公开(公告)日：2004-03-25

申请号：US10418960

申请日：2003-04-18

发明人： Kenneth Vincent ,  Peter J. Knight

IPC分类号： H02H009/06

CPC分类号： H01F7/18 ,  H01F7/1811

摘要： A circuit arrangement for the fast dissipation of the stored magnetic energy in an inductive load (4) controlled by a first switch (T1), comprising a high voltage-drop energy dissipation path (D2) disposed across the first switch (T1) and a second switch (T2) by which a constant-voltage diode drop path (D1) across the load (L1) can be selectively opened.

摘要翻译： 一种用于在由第一开关（T1）控制的电感负载（4）中快速耗散存储的磁能的电路装置，包括跨越第一开关（T1）布​​置的高压降能量耗散路径（D2）和 可以选择性地打开穿过负载（L1）的恒压二极管压降路径（D1）的第二开关（T2）。

公开(公告)号：US20040001299A1

公开(公告)日：2004-01-01

申请号：US10319797

申请日：2002-12-13

申请人： LAIRD TECHNOLOGIES, INC.

发明人： Philip van Haaster ,  Edward Nakauchi ,  Richard Norman Johnson

IPC分类号： H02H009/06

CPC分类号： H05K9/0088 ,  G02B6/4277 ,  H01L23/552 ,  H01L2924/16152 ,  H05K9/0058 ,  Y10T428/25

摘要： Lossy materials can be used to suppress EMI transmission. Disclosed are methods for applying lossy materials to EMI shielded enclosures to improve EMI shielding effectiveness and the EMI shielded enclosures so produced. In some embodiments, the EMI shielded enclosure includes a printed-circuit board mountable device. In one embodiment, lossy material can be applied to the interior of an EMI shielded enclosure using an adhesive. In another embodiment, lossy materials can be applied to the exterior of the EMI enclosure to suppress EMI incident upon the EMI shielded enclosure, thereby reducing the susceptibility of electronics contained within the EMI shielded enclosure. In yet another embodiment, lossy materials can be applied to both the interior and exterior of the EMI enclosure.

摘要翻译： 有损材料可用于抑制EMI传输。 公开了将有害材料应用于EMI屏蔽外壳以提高EMI屏蔽效能的方法和如此制造的EMI屏蔽外壳。 在一些实施例中，EMI屏蔽外壳包括印刷电路板可安装装置。 在一个实施例中，可以使用粘合剂将损耗材料施加到EMI屏蔽外壳的内部。 在另一个实施例中，有损耗材料可以施加到EMI外壳的外部，以抑制入射到EMI屏蔽外壳上的EMI，从而降低EMI屏蔽外壳内的电子元件的敏感性。 在另一个实施例中，损耗材料可以应用于EMI外壳的内部和外部。

公开(公告)号：US20030214773A1

公开(公告)日：2003-11-20

申请号：US10417112

申请日：2003-04-17

发明人： Nobutaka Kitagawa

IPC分类号： H02H009/06

CPC分类号： H01L27/0251

摘要： A semiconductor circuit system has first, second, and third external terminals electrically separated from each other. The first external terminal is configured to receive a first power supply voltage in a normal operation. A protection circuit section is provided in the circuit system and includes a rectifier to allow a surge current to pass therethrough. The rectifier has a current passage connected between a specific terminal connected to a protection target and the third external terminal. The protection circuit section further includes a first PMOS transistor configured to trigger the rectifier, based on a surge voltage inputted into the second external terminal. The first PMOS transistor has a current passage connected between the second external terminal and a base of the NPN transistor. The first PMOS transistor has a gate connected to the first external terminal.

摘要翻译： 半导体电路系统具有彼此电分离的第一，第二和第三外部端子。 第一外部端子被配置为在正常操作中接收第一电源电压。 保护电路部分设置在电路系统中，并且包括一个整流器以允许浪涌电流通过。 整流器具有连接在与保护对象连接的特定端子与第三外部端子之间的电流通路。 保护电路部分还包括第一PMOS晶体管，其被配置为基于输入到第二外部端子的浪涌电压来触发整流器。 第一PMOS晶体管具有连接在第二外部端子和NPN晶体管的基极之间的电流通路。 第一PMOS晶体管具有连接到第一外部端子的栅极。

公开(公告)号：US20030151874A1

公开(公告)日：2003-08-14

申请号：US10072699

申请日：2002-02-08

发明人： Richard E. Shipp

IPC分类号： H02H009/06

CPC分类号： H02H9/042

摘要： A stand-alone voltage surge suppression device for use with household appliances is arranged for connection to conventional female wall type outlets. The device is made to plug into an outlet socket and protect the adjacent sockets. The surge components of the device include two sets of varistors and thermofuses. In this embodiment, there are two sets of varistors and thermofuses. One is a primary varistor and fuse combination set at a lower voltage, and the other is a secondary group set at a higher voltage. Both take effect in surge protection, however, with enough hits, the lower one will fail first. Even so, the secondary group will still provide sufficient, although reduced amount of protection. In order for the user to know the status of the unit, there are two indicator lamps on the outside of the device. The surge protector preferably includes a light source arranged to indicate when the primary pair of varistors stops functioning. The surge protector may further include a first light source arranged to indicate when the primary pair of varistors stops functioning and a second light source arranged to indicate when the secondary pair of varistors stops functioning.

摘要翻译： 布置用于与家用电器一起使用的独立电压浪涌抑制装置，用于连接到常规的女性壁式插座。 该设备被插入插座并保护相邻插座。 器件的浪涌元件包括两组压敏电阻和热熔丝。 在本实施例中，存在两组变阻器和热熔体。 一个是在较低电压下设置的主要变阻器和熔断器组合，另一个是设置在较高电压的次级组。 两者都会在浪涌保护中起作用，但是如果有足够的命中率，那么下一个将首先失败。 即使如此，二级组仍然将提供足够的，尽管减少的保护。 为了使用户知道设备的状态，设备外部有两个指示灯。 浪涌保护器优选地包括布置成指示何时主要的一对变阻器停止工作的光源。 浪涌保护器还可以包括布置成指示何时主要的一对变阻器停止工作的第一光源和布置成指示次级对压敏电阻何时停止工作的第二光源。