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    • 1. 发明授权
    • Current mirror and current cancellation circuit
    • 电流镜和电流消除电路
    • US08384443B2
    • 2013-02-26
    • US13015273
    • 2011-01-27
    • Anand Chamakura
    • Anand Chamakura
    • H02M11/00
    • G05F1/10G05F3/262
    • Techniques are described to mirror currents and subtract currents accurately. In an implementation, a circuit includes a first current source coupled to a first node to provide a current IPD1 and a current mirror coupled to the first node through a first switch T1 to provide a current IREF1. In a closed configuration, the current IREF1 flows from the current mirror into the first node. A sigma delta modulator controls the switch T1 such that over a period of time an average current flowing from the current mirror into the first node is equal to the current IPD1 flowing out of the first node. The sigma delta modulator generates a digital output to control switch T2 to allow a current IREF2 into a second node, thus subtracting a portion of a current IPD2 at the second node over a period of time.
    • 描述技术来镜像电流并精确地减去电流。 在实现中,电路包括耦合到第一节点以提供当前IPD1的第一电流源和通过第一开关T1耦合到第一节点的电流镜,以提供电流IREF1。 在闭合配置中,当前IREF1从当前镜像流入第一个节点。 Σ-Δ调制器控制开关T1,使得在一段时间内,从电流反射镜流入第一节点的平均电流等于流出第一节点的当前IPD1。 Σ-Δ调制器产生数字输出以控制开关T2以允许当前IREF2进入第二节点,从而在一段时间内减去第二节点处的当前IPD2的一部分。
    • 3. 发明授权
    • Support system for exhaust emission control elements
    • 废气排放控制要素支援系统
    • US08192533B2
    • 2012-06-05
    • US12485530
    • 2009-06-16
    • Randy KinneyAlan MoyerAaron Huff
    • Randy KinneyAlan MoyerAaron Huff
    • B01D46/00
    • B01D46/0002Y10S55/30Y10S55/31
    • A device for securing an emission control element by a gastight seal within an exhaust system, and a device to secure loose hardware within an exhaust system. The device for securing the emission control element includes a structure that surrounds the emission control element and a structure that pushes against the emission control element. The structure that pushes against the emission control element uses a system of angled grooves and pushing means to create a force that holds the emission control element in place. The device to secure loose hardware includes a length of wire, the end of which is formed into a loop around the body of the hardware.
    • 一种用于通过排气系统内的气密密封来固定排放物控制元件的装置,以及用于固定排气系统内的松散硬件的装置。 用于固定排放控制元件的装置包括围绕排放控制元件的结构和推动排放控制元件的结构。 推动排放控制元件的结构使用有角度的凹槽和推动装置的系统,以产生将排放控制元件保持在适当位置的力。 用于固定松散硬件的装置包括一段长度的导线,其末端形成围绕硬件本体的环。
    • 8. 发明授权
    • Slidable autosampler tray
    • 可滑动自动进样器托盘
    • US08262993B2
    • 2012-09-11
    • US12644109
    • 2009-12-22
    • Daniel R. WiederinGary Barrett
    • Daniel R. WiederinGary Barrett
    • G01N33/00B01L9/00B01L3/00B01L9/06A47F7/00A47F3/14B65D73/00
    • B01L9/06G01N35/1081G01N35/109G01N2035/1086
    • A sample tray assembly includes a first tray. The first tray defines a first slot and is disposed on a generally horizontally-oriented plane. The sample tray assembly also includes a second tray adjacent to the first tray. The second tray is configured for translational movement substantially parallel to the generally horizontally-oriented plane of the first tray between a retracted position and an extended position. The second tray defines a second slot. The second slot and the first slot are substantially aligned when the second tray is in the retracted position. The sample tray additionally includes a base member supporting the first tray. The second tray is slidably coupled with the base member.
    • 样品盘组件包括第一托盘。 第一托盘限定第一狭槽并且设置在大致水平取向的平面上。 样品托盘组件还包括邻近第一托盘的第二托盘。 第二托盘构造成用于在缩回位置和延伸位置之间基本上平行于第一托盘的大致水平取向的平面的平移运动。 第二托盘限定第二槽。 当第二托盘处于缩回位置时,第二槽和第一槽基本对齐。 样品托盘另外包括支撑第一托盘的基底构件。 第二托盘可滑动地与基座构件连接。