Systems and Methods for Off-Time Control in a Voltage Converter
    1.
    发明申请
    Systems and Methods for Off-Time Control in a Voltage Converter 有权
    电压转换器中关闭时间控制的系统和方法

    公开(公告)号:US20090021962A1

    公开(公告)日:2009-01-22

    申请号:US12022965

    申请日:2008-01-30

    IPC分类号: H02M3/335

    摘要: Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second winding.

    摘要翻译: 本发明的各种实施例提供电压转换器及其使用方法。 作为一个示例,公开了一种电压转换器,其包括具有第一绕组和第二绕组的变压器。 在第一绕组上施加电压一段时间后的OFF时间。 电压转换器还包括OFF时间控制器,其可操作以至少部分地基于穿过第二绕组的负载电流来调节OFF时间。

    Systems and methods for off-time control in a voltage converter
    3.
    发明授权
    Systems and methods for off-time control in a voltage converter 有权
    电压转换器中关断时间控制的系统和方法

    公开(公告)号:US08576596B2

    公开(公告)日:2013-11-05

    申请号:US13277773

    申请日:2011-10-20

    IPC分类号: H02M7/44

    摘要: Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second winding.

    摘要翻译: 本发明的各种实施例提供电压转换器及其使用方法。 作为一个示例,公开了一种电压转换器,其包括具有第一绕组和第二绕组的变压器。 在第一绕组上施加电压一段时间后的OFF时间。 电压转换器还包括OFF时间控制器,其可操作以至少部分地基于穿过第二绕组的负载电流来调节OFF时间。

    SYSTEMS AND METHODS FOR OFF-TIME CONTROL IN A VOLTAGE CONVERTER
    4.
    发明申请
    SYSTEMS AND METHODS FOR OFF-TIME CONTROL IN A VOLTAGE CONVERTER 有权
    用于电压转换器中的非正时控制的系统和方法

    公开(公告)号:US20120039093A1

    公开(公告)日:2012-02-16

    申请号:US13277773

    申请日:2011-10-20

    IPC分类号: H02M3/335

    摘要: Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second winding.

    摘要翻译: 本发明的各种实施例提供电压转换器及其使用方法。 作为一个示例,公开了一种电压转换器,其包括具有第一绕组和第二绕组的变压器。 在第一绕组上施加电压一段时间后的OFF时间。 电压转换器还包括OFF时间控制器,其可操作以至少部分地基于穿过第二绕组的负载电流来调节OFF时间。

    OSCILLATORS AND CLOCK GENERATION
    5.
    发明申请
    OSCILLATORS AND CLOCK GENERATION 有权
    振荡器和时钟发生器

    公开(公告)号:US20130057352A1

    公开(公告)日:2013-03-07

    申请号:US13598251

    申请日:2012-08-29

    IPC分类号: H03K3/03

    CPC分类号: H03K3/0322

    摘要: Oscillator circuitry having a switching inverting amplifier arranged in a ring oscillator configuration of at least two stages. A bias generator for supplying the amplifiers of neighboring stages, is responsive to an enable signal to supply the amplifiers only when the enable signal is asserted. A first pair of transistors, coupled to an input of one of the amplifiers and the other coupled to an output of the amplifier, the transistors being driven in common by the enable signal such that when the enable signal is deasserted the transistors of the pair are turned on to impose conflicting levels at the input and the output such that the amplifier is forced to switch.

    摘要翻译: 振荡器电路具有以至少两级的环形振荡器配置布置的开关反相放大器。 用于提供相邻级的放大器的偏置发生器仅在使能信号被断言时响应于使能信号来提供放大器。 第一对晶体管,耦合到放大器之一的输入端,另一个耦合到放大器的输出端,晶体管由使能信号共同驱动,使得当使能信号被置为无效时,该对晶体管是 打开在输入和输出上施加相冲突的电平,使得放大器被迫切换。

    Membership management of network nodes
    6.
    发明授权
    Membership management of network nodes 有权
    网络节点的会员管理

    公开(公告)号:US08094585B2

    公开(公告)日:2012-01-10

    申请号:US11838452

    申请日:2007-08-14

    IPC分类号: H04L12/44

    摘要: Nodes of the network are organized into a tree structure having a plurality of vertices. Each vertex of the tree structure comprises a group having a plurality of nodes. Membership information is maintained at each node. The membership information for a given node comprises information about a group to which the given node belongs and child groups of the group to which the given node belongs in the tree structure. The steps are performed at least in part by a processor.

    摘要翻译: 网络的节点被组织成具有多个顶点的树结构。 树结构的每个顶点包括具有多个节点的组。 在每个节点维护会员信息。 给定节点的成员关系信息包括关于给定节点所属的组以及给定节点所属于的组中的子组的信息在树结构中的信息。 这些步骤至少部分地由处理器执行。

    Systems and methods for manufacturing a circuit board
    7.
    发明授权
    Systems and methods for manufacturing a circuit board 有权
    制造电路板的系统和方法

    公开(公告)号:US06637641B1

    公开(公告)日:2003-10-28

    申请号:US10139500

    申请日:2002-05-06

    IPC分类号: B23K308

    摘要: A circuit board manufacturing system has a paste source, a circuit board processing apparatus, and a controller. The circuit board processing apparatus includes a carrier configured to receive a circuit board having (i) a section of circuit board material and (ii) virgin metallic surface mount pads supported by the section of circuit board material. The circuit board processing apparatus further includes a paste distribution assembly coupled to the carrier and to the paste source. The paste distribution assembly is configured to dispose a paste from the paste source onto a surface of the circuit board. The carrier further includes a surfacing assembly coupled to the carrier. The surfacing assembly is configured to move the paste over the surface of the circuit board to remove a portion of each virgin metallic surface mount pad. The controller is configured to selectively start and stop operations of the paste distribution and surfacing assemblies.

    摘要翻译: 电路板制造系统具有糊源,电路板处理装置和控制器。 电路板处理装置包括:载体,被配置为接收具有(i)电路板材料部分的电路板和(ii)由电路板材料部分支撑的原始金属表面安装焊盘。 电路板处理装置还包括耦合到载体和糊源的糊剂分配组件。 糊剂分配组件被配置为将糊料从糊剂源设置到电路板的表面上。 载体还包括耦合到载体的表面组件。 表面组件被配置为将糊料移动到电路板的表面上以去除每个原始金属表面安装垫的一部分。 控制器被配置为选择性地启动和停止粘合剂分布和堆焊组件的操作。

    Method and composition for treating wood
    8.
    发明授权
    Method and composition for treating wood 失效
    木材处理方法和组成

    公开(公告)号:US5395656A

    公开(公告)日:1995-03-07

    申请号:US15233

    申请日:1993-02-09

    申请人: Jin Liang

    发明人: Jin Liang

    摘要: A wood preservative composition which contains poly ethylene oxide along with poly vinyl pyrrolidone is applied to wood in a four-step process. In the first step, moisture and excess resin are removed from the wood. In the second step, the preservative composition is applied to the wood by pressure injection. In the third step, the container for the wood is drained and excess solution is transferred to a holding tank. In the fourth step, a catalyst, either heat or a low-pH composition, is applied to the wood to cause chemical bonding of the preservatives within and with the wood. As a part of the fourth step, excess moisture is removed from the wood by subjecting the wood to a vacuum to draw out excess moisture and then subjecting the wood to a flow of desiccated air which absorbs the moisture.

    摘要翻译: 将包含聚环氧乙烷以及聚乙烯吡咯烷酮的木材防腐剂组合物以四步法施用于木材。 在第一步中,从木材中除去水分和多余的树脂。 在第二步中,通过压力注射将防腐剂组合物施加到木材上。 在第三步中,用于木材的容器被排出并且过量的溶液被转移到储存罐中。 在第四步骤中,将加热或低pH组成的催化剂施加到木材上,以使木材中的防腐剂与木材中的化学结合。 作为第四步骤的一部分,通过使木材经受真空以抽出多余的水分,然后使木材受到吸收水分的干燥空气的流动,从木材中除去多余的水分。

    Method for reducing whisker growth
    10.
    发明授权
    Method for reducing whisker growth 有权
    减少晶须生长的方法

    公开(公告)号:US08551263B1

    公开(公告)日:2013-10-08

    申请号:US12638617

    申请日:2009-12-15

    IPC分类号: C22F1/02 C22F1/16

    CPC分类号: C22F1/02

    摘要: A method of reducing whisker growths includes identifying a solder connection to be treated. The solder connection may contain one or more whisker growths. A heat source is applied at a defined temperature to the solder connection for a defined period of time sufficient to melt at least a portion of the one or more whisker growths. The heat source is removed from the solder connection prior to the melting of the solder connection.

    摘要翻译: 减少晶须生长的方法包括鉴定待处理的焊料连接。 焊料连接可能含有一个或多个晶须生长。 在限定的温度下将热源在焊料连接处施加足以熔化至少一部分一个或多个晶须生长的限定的时间段。 在熔化焊料连接之前,将热源从焊料连接处移除。