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    • 37. 发明授权
    • Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices
    • 具有包括多个发光二极管的电路的照明装置以及控制和校准照明装置的方法
    • US07375476B2
    • 2008-05-20
    • US11101461
    • 2005-04-08
    • Scott D. WalterRobert E. CorbettRichard G. MatsuiBen A. Beer
    • Scott D. WalterRobert E. CorbettRichard G. MatsuiBen A. Beer
    • H05B37/00
    • H05B33/0803F21K9/232F21Y2113/20F21Y2115/10H05B33/0818H05B33/086H05B33/0866H05B35/00Y02B20/346
    • A lighting device (132) includes a circuit having a power supply and a plurality of light emitting diodes (120) connected in series with the power supply. The plurality of light emitting diodes (120) includes at least two groups of series-connected light emitting diodes, the groups of series-connected light emitting diodes being connected in series. A different optically isolated field effect transistor (U3-U5) is connected in parallel with each group of series-connected light emitting diodes, for selectively shunting around the group of series-connected light emitting diodes. A different capacitor (C8-C10) can also be connected in parallel with each group of series-connected light emitting diodes. A controller (U2) is connected to a gate of each of the optically isolated field effect transistors (U3-U5) for selectively turning the optically isolated field effect transistors (U3-U5) on and off. Thus, the controller U2 is electrically isolated from the power supply by the optically isolated field effect transistors (U3-U5). The light emitting diodes (120) can be driven and controlled using pulse width modulation methods.
    • 照明装置(132)包括具有与电源串联连接的电源和多个发光二极管(120)的电路。 多个发光二极管(120)包括至少两组串联连接的发光二极管,串联连接的发光二极管组串联连接。 不同的光隔离场效应晶体管(U 3 -U 5)与每组串联的发光二极管并联连接,用于选择性地分流串联连接的发光二极管。 不同的电容器(C 8 -C 10)也可以与每组串联的发光二极管并联连接。 控制器(U 2)连接到每个光隔离场效应晶体管(U 3 -U 5)的栅极,用于选择性地使光隔离的场效应晶体管(U 3 -U 5)导通和截止。 因此,控制器U 2通过光隔离场效应晶体管(U 3 -U 5)与电源电隔离。 可以使用脉冲宽度调制方法来驱动和控制发光二极管(120)。
    • 38. 发明授权
    • Contaminant transport apparatus
    • 污染物运输装置
    • US4979967A
    • 1990-12-25
    • US347509
    • 1989-05-04
    • Scott D. WalterRobert E. KatzFrank WeidnerPatrick M. Ball
    • Scott D. WalterRobert E. KatzFrank WeidnerPatrick M. Ball
    • B01D47/06
    • B01D47/06
    • An apparatus and method for transporting hazardous, toxic or nuisance materials from the controlled chambers of removal sites to disposal sites and containing these materials by controlling the environment within the cargo area of a transport vehicle and for some distance outside it. The apparatus comprises a cargo chamber to control leakage and air flow, a regulated air handler to maintain a predetermined vacuum pressure within the cargo area relative to outside ambient pressure, a filtering system to trap air borne particles before exhausting into the outside environment and a wetting means, filter means and containment process for larger contaminates. The unit is self sufficient to provide its own generated electricity, liquid flow supply and automated control process enabling the containment system to function under stationary or mobile conditions for extended periods.
    • 一种用于通过控制运输车辆的货物区域内的环境并在其外部一段距离内将危险,有毒或有害物质从排放场所的控制室运送到处置场所并包含这些材料的装置和方法。 该装置包括用于控制泄漏和空气流动的货舱,一个调节空气处理器,以相对于外部环境压力在货物区域内保持预定的真空压力;过滤系统,用于在排气到外部环境之前捕获空气传播的颗粒,并且润湿 对于较大的污染物,是指过滤装置和容纳过程。 该设备自给自足以提供自己的发电,液体流动供应和自动化控制过程,使密闭系统能够在固定或移动条件下长时间工作。