Testing of a transient voltage protection device
    1.
    发明授权
    Testing of a transient voltage protection device 有权
    瞬态电压保护装置的测试

    公开(公告)号:US09411016B2

    公开(公告)日:2016-08-09

    申请号:US13327973

    申请日:2011-12-16

    Abstract: A method of testing a voltage protection device in a circuit is provided. The circuit comprises a source and load and a detector is provided in parallel with the protection device. The method comprises opening a switching device provided in the circuit. The method further comprises detecting a property of a voltage spike caused by the rate of change of current in the circuit inductance produced by the opening of the switching device to determine the condition of the protection device.

    Abstract translation: 提供了一种在电路中测试电压保护装置的方法。 电路包括源和负载,并且检测器与保护装置并联设置。 该方法包括打开设在电路中的开关装置。 该方法还包括检测由开关装置的开路产生的电路电感中的电流变化率引起的电压尖峰的特性,以确定保护装置的状态。

    Electrodes and lamps
    2.
    发明授权
    Electrodes and lamps 失效
    电极和灯

    公开(公告)号:US5880559A

    公开(公告)日:1999-03-09

    申请号:US857242

    申请日:1997-05-16

    CPC classification number: H01J61/0677

    Abstract: A cold cathode electrode for a discharge lamp has a metal substrate supporting a layer of diamond, so as to increase the electron yield of the electrode. The substrate may be a helical nickel wire with a layer of diamond forming it into a continuous tube.

    Abstract translation: 用于放电灯的冷阴极电极具有支撑金刚石层的金属基板,以增加电极的电子产量。 衬底可以是具有金刚石层形成连续管的螺旋镍线。

    Switching circuits and methods of testing thereof
    3.
    发明授权
    Switching circuits and methods of testing thereof 有权
    开关电路及其测试方法

    公开(公告)号:US08836338B2

    公开(公告)日:2014-09-16

    申请号:US13328018

    申请日:2011-12-16

    CPC classification number: G01R31/3277 H03K17/12 H03K17/18 H03K2217/0054

    Abstract: A switching circuit for connection to a load and to a voltage source is provided. The switching circuit includes at least one switching device for switching on and off power to the load. A pulldown device is provided for shorting out the load thereby isolating the load from the voltage source; and a controller operable while the load is shorted to activate at least one of the switching devices at a time. The current passes through the activated switching device and is measurable to test whether the activated switching device is operating correctly.

    Abstract translation: 提供了用于连接到负载和电压源的开关电路。 开关电路包括用于接通和断开负载的电力的至少一个开关装置。 提供下拉装置用于使负载短路,从而将负载与电压源隔离; 以及控制器,其在负载短路时可以一次启动至少一个开关装置。 电流通过激活的开关装置,并且是可测量的,以测试激活的开关装置是否正常工作。

    Gas discharge lamps with glow mode electrodes
    4.
    发明授权
    Gas discharge lamps with glow mode electrodes 有权
    具有发光模式电极的气体放电灯

    公开(公告)号:US06373185B1

    公开(公告)日:2002-04-16

    申请号:US09235289

    申请日:1999-01-22

    CPC classification number: H05B41/3927 H01J61/307 H01J65/046

    Abstract: A flat panel lamp has internal walls forming a serpentine discharge path between two internal electrodes. Two glow mode electrodes in the form of interdigitated combs are laid on the outside of the front panel of the lamp, on top of the walls. The internal electrodes are connected to a first drive circuit; the glow mode electrodes are connected to a second drive circuit, which drives them at a frequency of about 10 MHz. At high brightness, only the internal electrodes are operative; at low brightness, only the glow mode electrodes are operative; and at intermediate brightness the two sets of electrodes are alternately energized.

    Abstract translation: 平板灯具有在两个内部电极之间形成蛇形放电路径的内壁。 形状为梳齿的两个发光模式电极放置在灯前面板的外侧壁上。 内部电极连接到第一驱动电路; 辉光模式电极连接到第二驱动电路,其以大约10MHz的频率驱动它们。 在高亮度下,仅内部电极工作; 在低亮度下,只有辉光模式电极工作; 并且在中间亮度下,两组电极交替地通电。

    Gas discharge lamps and systems
    5.
    发明授权
    Gas discharge lamps and systems 失效
    气体放电灯和系统

    公开(公告)号:US5747946A

    公开(公告)日:1998-05-05

    申请号:US709818

    申请日:1996-09-10

    Abstract: A fluorescent discharge lamp has two glow mode electrodes wound around it in a helical fashion. One circuit drives the main electrodes at opposite ends of the lamp at high levels of brightness. Another circuit drives the glow mode electrodes at low levels of brightness, at about 10MHz. At intermediate levels of brightness, both the main electrodes and the glow mode electrodes are driven, the two sets of electrodes being driven for alternate on and off periods with the glow mode electrodes being on when the main electrodes are off and the glow mode electrodes being off when the main electrodes are on.

    Abstract translation: 荧光放电灯具有以螺旋方式缠绕在其上的两个发光模式电极。 一个电路以高亮度驱动灯的两端的主电极。 另一个电路在10MHz左右的低亮度驱动辉光模式电极。 在中间级的亮度下,主电极和辉光模式电极都被驱动,两组电极被驱动用于交替的上下电压周期,当主电极关闭时,辉光模式电极接通,并且发光模式电极为 当主电极打开时关闭。

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