Reverse recovery circuit, method of operation thereof and asymmetrical half-bridge power converter

    公开(公告)号:US06496396B2

    公开(公告)日:2002-12-17

    申请号:US09780187

    申请日:2001-02-09

    IPC分类号: H02M324

    CPC分类号: H02M7/06 H02M1/32 H02M3/337

    摘要: For use with an asymmetrical half-bridge power converter having a primary switching circuit coupled to a primary winding of a transformer and a rectifier coupled to a secondary winding of the transformer, a reverse recovery circuit a method of operation thereof. In one embodiment, the reverse recovery circuit includes an inductor that reduces current spikes in the primary switching circuit caused by a reverse recovery phenomenon associated with the rectifier. The reverse recovery circuit also includes a diode, coupled to the inductor, that clamps a voltage across the rectifier.

    System and method for automatically providing fuel to a fuel cell in response to a power failure in a primary power system
    2.
    发明授权
    System and method for automatically providing fuel to a fuel cell in response to a power failure in a primary power system 失效
    响应于主电力系统中的电力故障,向燃料电池自动提供燃料的系统和方法

    公开(公告)号:US06180272B2

    公开(公告)日:2001-01-30

    申请号:US09136999

    申请日:1998-08-20

    IPC分类号: H01M804

    摘要: The present invention provides, in one embodiment, a system for providing fuel to a backup electrical fuel cell. In this particular embodiment, the system includes a sealed fuel container having a pierceable membrane with a container seal associated therewith, an acerate tube proximate the pierceable membrane, and an actuator. The actuator is coupled to the acerate tube and automatically drives the acerate tube through the pierceable membrane to provide fluid communication from the fuel container to the fuel cell in response to a failure of a primary electrical power system. The container seal is configured to form a seal about the acerate tube when the acerate tube pierces the pierceable membrane to prevent unnecessary loss of fuel, such as methanol, from the container. In alternative embodiments, the system may also include the primary power system and a backup electrical fuel cell that is electrically coupled to the primary power system.

    摘要翻译: 在一个实施例中,本发明提供了一种用于向备用电燃料电池提供燃料的系统。 在该特定实施例中,该系统包括密封的燃料容器,其具有与其相关联的容器密封件的可刺穿膜,靠近可刺穿膜的柔性管和致动器。 致动器耦合到硬质合金管并且自动地驱动该硬质合金管穿过可刺穿的膜以响应于主电力系统的故障而提供从燃料容器到燃料电池的流体连通。 当密封管刺穿可刺穿的膜时,容器密封件构造成围绕硬度管形成密封,以防止从容器中不必要地损失诸如甲醇的燃料。 在替代实施例中,系统还可以包括主电力系统和电耦合到主电力系统的备用电燃料电池。

    Hybrid standby power system, method of operation thereof and
telecommunications installation employing the same
    3.
    发明授权
    Hybrid standby power system, method of operation thereof and telecommunications installation employing the same 有权
    混合备用电力系统,其操作方法和采用其的电信设备

    公开(公告)号:US5995396A

    公开(公告)日:1999-11-30

    申请号:US268917

    申请日:1999-03-15

    CPC分类号: H02J9/061 Y10T307/729

    摘要: A hybrid standby power system for producing regulated DC electrical power, a method of producing such power and a telecommunications installation that employs either the system or the method. In one embodiment, the system includes: (1) a primary power input, couplable to a primary power source, that accepts primary electrical power subject to interruption, (2) a standby power input, couplable to a standby power source, that accepts unregulated standby electrical power and (3) a power converter, couplable to at least one of the primary and standby power inputs, including a rectifier that rectifies at least one of the primary and standby electrical power to provide unregulated DC electrical power and a DC--DC converter that converts the unregulated DC electrical power into the regulated DC electrical power.

    摘要翻译: 一种用于生产调节型直流电力的混合备用电力系统,一种制造这种电力的方法以及采用该系统或方法的电信设备。 在一个实施例中,该系统包括:(1)主电源输入,可耦合到主电源,其接受中断的主电力;(2)备用电源输入,可连接到备用电源,其接受未调节 备用电力和(3)功率转换器,可耦合到至少一个主电源和备用电源输入,包括整流器,其对主电和备用电源中的至少一个进行整流以提供不受调节的直流电功率和DC-DC 转换器,其将未调节的直流电功率转换成调节的直流电力。

    Low profile magnetic element
    4.
    发明授权
    Low profile magnetic element 有权
    薄型磁性元件

    公开(公告)号:US07295094B2

    公开(公告)日:2007-11-13

    申请号:US10512128

    申请日:2003-04-11

    IPC分类号: H01F5/00

    摘要: A low profile magnetic element used in cooperation with a multilayer printed circuit board has two or more core arms penetrating the board from one outer surface to the other and a series of magnetic core elements, at least one on each side of the board, bridging pairs of the core arms to form a closed, unbranched flux path. Series-connected windings form a transformer primary and are wound on the core arms that penetrate the board. Parallel-connected windings form a transformer secondary and are also wound on the core arms. The series-connected windings and the parallel-connected windings may be buried windings printed on internal surfaces of the multilayer board. The connected in series primary windings all have the same number of turns and the parallel-connected secondary windings all have the same number of turns. The parallel secondary windings are connected in current additive fashion to afford a high current transformer output. Output treating circuitry can treat each output separately in parallel and identically, being connected between the winding outputs and their point of connection. The transformer core can be assembled entirely of C and I magnetic elements. In one embodiment, a pair of magnetic plates overlying the outer surfaces of the multilayer circuit board are in flux-conducting relation with all of the core arms penetrating the board.

    摘要翻译: 与多层印刷电路板协作使用的低轮廓磁性元件具有从一个外表面到另一个外表面穿过该基板的两个或多个芯臂,以及一系列磁芯元件,该板的每一侧至少有一个桥接对 的芯臂以形成封闭的,无分支的通量路径。 串联绕组形成变压器初级,并缠绕在穿过电路板的芯臂上。 并联绕组形成变压器次级并且还缠绕在芯臂上。 串联绕组和并联绕组可以是埋在多层印刷板的内表面上的绕组。 串联连接的初级绕组全部具有相同的匝数,并联的次级绕组全部具有相同的匝数。 并联次级绕组以当前的添加方式连接以提供高电流互感器输出。 输出处理电路可以并联和相同地分别处理每个输出,连接在绕组输出和它们的连接点之间。 变压器铁芯可以完全由C和I磁性元件组装。 在一个实施例中,覆盖多层电路板的外表面的一对磁性板与所有芯臂穿透板具有磁通 - 导通关系。

    Integrated exclusion filter and pressurizing means
    5.
    发明授权
    Integrated exclusion filter and pressurizing means 有权
    集成排阻滤器和加压装置

    公开(公告)号:US6063154A

    公开(公告)日:2000-05-16

    申请号:US379817

    申请日:1999-08-24

    摘要: There is provided an integrated exclusion filter and pressurizing device which prevents leakage of unfiltered fluid across the interface area between a rotating filtering apparatus and non-rotating bulkhead. The exclusion filter utilized is of the type which utilizes Boundary Layer Momentum Transfer methodology to achieve filtration, and which includes a cylindrical stack of substantially flat annular plates. A pressurizing device is utilized downstream from the exclusion filter to repressurize filtered fluid and direct the filtered fluid toward the interface area. Either all the filtered fluid or only a portion may be repressurized, and some of the filtered fluid may be directed toward the bulkhead itself to aid pressurization by creating a local stagnation region. The pressurizing device may utilize flow diverting vanes in a housing, including blowers, pumps, compressors, and fans. The housing design may be modified to improve fluid flow and multistage pressurizing means designs may be used to enhance repressurization. External vanes may also be added to the filtering apparatus to disperse particles ejected by the exclusion filter, reduce the particle density of the unfiltered fluid surrounding the exclusion filter, cool the system served by the filtering apparatus, or dilute the exhaust of the system served by the filtering apparatus.

    摘要翻译: 提供了一种集成的排除过滤器和加压装置,其防止未过滤流体穿过旋转过滤装置和非旋转隔板之间的界面区域的泄漏。 所使用的排除过滤器是利用边界层动量传递方法实现过滤的类型,其包括基本平坦的环形板的圆柱形堆叠。 加压装置用于排除过滤器的下游,以对过滤的流体进行再加压,并将过滤后的流体引向接口区域。 所有过滤的流体或仅一部分可以被再次加压,并且一些被过滤的流体可以被引向隔板本身,以通过产生局部停滞区域来帮助加压。 加压装置可以利用壳体中的分流叶片,包括鼓风机,泵,压缩机和风扇。 壳体设计可以被修改以改善流体流动,并且多级加压装置设计可以用于增强再加压。 外部叶片也可以被添加到过滤装置中以分散由排除过滤器喷射的颗粒,降低排除过滤器周围的未过滤流体的颗粒密度,冷却由过滤装置服务的系统,或稀释由 过滤装置。

    Integrated exclusion filter and pressurizing means
    6.
    发明授权
    Integrated exclusion filter and pressurizing means 失效
    集成排阻滤器和加压装置

    公开(公告)号:US6007605A

    公开(公告)日:1999-12-28

    申请号:US20721

    申请日:1998-02-09

    摘要: There is provided an integrated exclusion filter and pressurizing device which prevents leakage of unfiltered fluid across the interface area between a rotating filtering apparatus and non-rotating bulkhead. The exclusion filter utilized is of the type which utilizes Boundary Layer Momentum Transfer methodology to achieve filtration, and which includes a cylindrical stack of substantially flat annular plates. A pressurizing device is utilized downstream from the exclusion filter to repressurize filtered fluid and direct the filtered fluid toward the interface area. Either all the filtered fluid or only a portion may be repressurized, and some of the filtered fluid may be directed toward the bulkhead itself to aid pressurization by creating a local stagnation region. The pressurizing device may utilize flow diverting blades in a housing, including blowers, pumps, compressors, and fans. The housing design may be modified to improve fluid flow and multistage pressurizing means designs may be used to enhance repressurization. External vanes may also be added to the filtering apparatus to disperse particles ejected by the exclusion filter, reduce the particle density of the unfiltered fluid surrounding the exclusion filter, cool the system served by the filtering apparatus, or dilute the exhaust of the system served by the filtering apparatus.

    摘要翻译: 提供了一种集成的排除过滤器和加压装置,其防止未过滤流体穿过旋转过滤装置和非旋转隔板之间的界面区域的泄漏。 所使用的排除过滤器是利用边界层动量传递方法实现过滤的类型,其包括基本平坦的环形板的圆柱形堆叠。 加压装置用于排除过滤器的下游,以对过滤的流体进行再加压,并将过滤后的流体引向接口区域。 所有过滤的流体或仅一部分可以被再次加压,并且一些被过滤的流体可以被引向隔板本身,以通过产生局部停滞区域来帮助加压。 加压装置可以利用壳体中的分流叶片,包括鼓风机,泵,压缩机和风扇。 壳体设计可以被修改以改善流体流动,并且多级加压装置设计可以用于增强再加压。 外部叶片也可以被添加到过滤装置中以分散由排除过滤器喷射的颗粒,降低排除过滤器周围的未过滤流体的颗粒密度,冷却由过滤装置服务的系统,或稀释由 过滤装置。

    Inverse assembler
    7.
    发明授权
    Inverse assembler 失效
    反汇编器

    公开(公告)号:US06393606B1

    公开(公告)日:2002-05-21

    申请号:US09344642

    申请日:1999-06-25

    IPC分类号: G06F904

    CPC分类号: G06F8/53

    摘要: An inverse assembler and converter acquire binary code during inverse assembly of compiled programming code for a software application. A memory image file is generated during compiling of the programming code and a converter is used to trigger a physical address in a memory bus via a logic analyzer. A triggered logical address in the compiled programming code is determined. The triggered logical address is input into the converter. Trigger commands are provided to the logic analyzer that are used to trigger a physical address where binary code is stored in memory. The trigger commands are supplied to the logic analyzer and the memory bus is triggered. The physical address is acquired and converted into a logical address. The memory image file is searched for the logical address. The binary code is acquired from the memory image file at the logical address. The binary code corresponds to only machine code instructions performed during execution of the software application. The binary code is converted into machine code instructions so as to perform the inverse assembly of the compiled programming code for the software application.

    摘要翻译: 反汇编器和转换器在针对软件应用程序编译的编程代码的反汇编期间获取二进制代码。 在编程编程代码期间生成存储器映像文件,并且转换器用于经由逻辑分析器触发存储器总线中的物理地址。 确定编译的编程代码中触发的逻辑地址。 触发的逻辑地址被输入到转换器中。 触发器命令提供给逻辑分析仪,用于触发存储二进制代码的物理地址。 触发命令提供给逻辑分析仪,触发存储器总线。 物理地址被获取并转换为逻辑地址。 搜索存储器映像文件的逻辑地址。 二进制代码从逻辑地址的存储器映像文件中获取。 二进制代码仅对应于在执行软件应用期间执行的机器代码指令。 将二进制代码转换为机器码指令,以便对软件应用程序编译的编程代码进行反汇编。

    Enhanced exclusion filter
    8.
    发明授权
    Enhanced exclusion filter 失效
    增强排除过滤器

    公开(公告)号:US6059861A

    公开(公告)日:2000-05-09

    申请号:US114783

    申请日:1998-07-13

    IPC分类号: B01D17/02 B01D46/12 B01D21/26

    CPC分类号: B01D46/12 B01D17/0217

    摘要: The present invention relates to an enhanced exclusion filter having a cylindrical stack of substantially identical annular disks and a central rotating element. Each annular disk engages the rotating element by at least one strut which extends inward from the inner perimeter of the annular disk toward the central axis of the cylindrical stack. Protuberances extend from the annular disks and engage depressions in adjacent annular disks to maintain the spacing between adjacent annular disks. Dimples extending through the annular disks may be utilized to form a depression on one surface of an annular disk and a protuberance on the opposite surface of the annular disk. The annular disks are angularly offset by a fixed amount from the adjacent annular disks so that rough vane surfaces are formed by the struts of the annular disks. Preferably a pattern of substantially identical angular offsets is used. In the alternative, a pattern of angular offsets may be used in which series of small angular offsets are separated by large angular offsets in a direction opposite from the small angular offsets. Preferably, the design of the struts is modified so that the trailing and leading edges of the struts extend toward adjacent struts, forming more continuous vane surfaces. The present invention also relates to the use of exclusion filters as a means of providing a flow of fluid through electronics enclosures. The present invention also relates to the use of redundant pressurized enclosures comprising an enclosure casing, two exclusion filters, and two pressurizing means. The enclosure casing has a major orifice through which fluid enters the enclosure casing and a minor orifice through which fluid exits the enclosure casing. The pressurizing means discharge filtered and pressurized fluid in two discharge areas within the enclosure casings which are substantially opposite from one another.

    摘要翻译: 本发明涉及一种具有基本上相同的环形盘的圆柱形堆叠和中心旋转元件的增强型排除过滤器。 每个环形盘通过至少一个从环形盘的内周向内朝向圆柱形堆叠的中心轴向延伸的支柱接合旋转元件。 凸起从环形盘延伸并且接合相邻环形盘中的凹陷以保持相邻环形盘之间的间隔。 可以利用延伸穿过环形盘的凹痕来在环形盘的一个表面上形成凹陷,在环形盘的相对表面上形成凸起。 环形盘与相邻的环形盘成角度地偏移固定的量,使得由环形盘的支柱形成粗糙的叶片表面。 优选地,使用基本上相同的角度偏移的图案。 在替代方案中,可以使用角度偏移的图案,其中小角度偏移的一系列在与小角度偏移相反的方向上被大角度偏移分开。 优选地,支柱的设计被改进,使得支柱的后缘和前缘朝向相邻的支柱延伸,形成更连续的叶片表面。 本发明还涉及使用排除过滤器作为提供流经电子外壳的流体的手段。 本发明还涉及使用包括壳体外壳,两个排除过滤器和两个加压装置的冗余加压外壳。 外壳壳体具有主要孔口,流体通过该孔口进入外壳壳体和小孔口,流体从该孔口流过外壳壳体。 加压装置将过滤和加压的流体排放在彼此基本相对的封闭壳体内的两个排放区域中。

    Connect/disconnect circuit for a reserve battery and method of operation
thereof
    9.
    发明授权
    Connect/disconnect circuit for a reserve battery and method of operation thereof 失效
    备用电池的连接/断开电路及其操作方法

    公开(公告)号:US5969436A

    公开(公告)日:1999-10-19

    申请号:US032745

    申请日:1998-02-27

    IPC分类号: H02J9/06 H02J7/00

    摘要: For use with a reserve battery couplable to a source of electrical power, a battery connect/disconnect circuit, including: (1) a switching subcircuit comprising a series-coupled controllable switch and diode and connected in electrical series with the reserve battery, the diode reverse-biased with respect the source of electrical power, (2) a contactor coupled in electrical parallel with the switching subcircuit and (3) a control circuit, coupled to the switching subcircuit and the contactor, that selectively closes the contactor to couple the reserve battery to the source of electrical power to charge the reserve battery.

    摘要翻译: 用于与电源连接的备用电池,电池连接/断开电路,包括:(1)包括串联耦合的可控开关和二极管并与备用电池串联连接的开关分支电路,二极管 相对于电力源反向偏置,(2)与开关子电路并联耦合的接触器和(3)耦合到开关子电路和接触器的控制电路,其选择性地闭合接触器以耦合储备 电池来源的电力为备用电池充电。