ELECTRONIC BALLAST AND METHOD FOR PROVIDING A DC VOLTAGE COMPONENT DURING LAMP STARTUP
    4.
    发明申请
    ELECTRONIC BALLAST AND METHOD FOR PROVIDING A DC VOLTAGE COMPONENT DURING LAMP STARTUP 有权
    电子镇流器和在灯启动期间提供直流电压元件的方法

    公开(公告)号:US20110074307A1

    公开(公告)日:2011-03-31

    申请号:US12890430

    申请日:2010-09-24

    IPC分类号: H05B41/26 H05B41/24

    摘要: A discharge lamp ballast and method of operation are provided for generating a DC component in an output voltage during a lamp starting operation having a predetermined duration. The ballast includes an inverter having four switches arranged in a full-bridge configuration, a resonant circuit having a resonant frequency, and a control circuit. The method includes a step of sweeping an inverter operating frequency within a predetermined frequency range including the resonant frequency, wherein a high voltage is generated for igniting the lamp. The method further includes periodically and alternately repeating a first state of turning on a first set of diagonally positioned switching elements and turning off a second set of diagonally positioned switching elements, and a second state of turning on only one of the second set of switching elements and turning off the remaining three switching elements, respectively.

    摘要翻译: 提供放电灯镇流器和操作方法,用于在具有预定持续时间的灯起动操作期间产生输出电压中的直流分量。 镇流器包括具有以全桥配置布置的四个开关的逆变器,具有谐振频率的谐振电路和控制电路。 该方法包括在包括谐振频率的预定频率范围内扫描逆变器工作频率的步骤,其中产生用于点亮灯的高电压。 该方法进一步包括周期地且交替地重复第一状态,使第一组对角定位的开关元件接通,并且断开第二组对角定位的开关元件;以及第二状态,仅打开第二组开关元件中的一个 并分别关闭其余的三个开关元件。

    Electronic ballast and method for providing a DC voltage component during lamp startup
    8.
    发明授权
    Electronic ballast and method for providing a DC voltage component during lamp startup 有权
    电子镇流器和在启动灯时提供直流电压分量的方法

    公开(公告)号:US08638039B2

    公开(公告)日:2014-01-28

    申请号:US12890430

    申请日:2010-09-24

    IPC分类号: H05B37/02

    摘要: A discharge lamp ballast and method of operation are provided for generating a DC component in an output voltage during a lamp starting operation having a predetermined duration. The ballast includes an inverter having four switches arranged in a full-bridge configuration, a resonant circuit having a resonant frequency, and a control circuit. The method includes a step of sweeping an inverter operating frequency within a predetermined frequency range including the resonant frequency, wherein a high voltage is generated for igniting the lamp. The method further includes periodically and alternately repeating a first state of turning on a first set of diagonally positioned switching elements and turning off a second set of diagonally positioned switching elements, and a second state of turning on only one of the second set of switching elements and turning off the remaining three switching elements, respectively.

    摘要翻译: 提供放电灯镇流器和操作方法,用于在具有预定持续时间的灯起动操作期间产生输出电压中的直流分量。 镇流器包括具有以全桥配置布置的四个开关的逆变器,具有谐振频率的谐振电路和控制电路。 该方法包括在包括谐振频率的预定频率范围内扫描逆变器工作频率的步骤,其中产生用于点亮灯的高电压。 该方法进一步包括周期地且交替地重复第一状态,使第一组对角定位的开关元件接通,并且断开第二组对角定位的开关元件;以及第二状态,仅打开第二组开关元件中的一个 并分别关闭其余的三个开关元件。

    Nickel-hydrogen secondary cell
    9.
    发明授权
    Nickel-hydrogen secondary cell 失效
    镍氢二次电池

    公开(公告)号:US06440607B1

    公开(公告)日:2002-08-27

    申请号:US09485293

    申请日:2000-02-08

    IPC分类号: H01M830

    摘要: A nickel-hydrogen secondary battery has a positive electrode including a positive electrode mixture which contains a nickel compound as a major component and which is supported on a collector sheet, a negative electrode including a negative electrode mixture which contains a hydrogen absorbing alloy as a major component, a binder and an electrically conductive material and which is supported on a collector sheet, the positive and negative electrodes being stacked up alternately or rolled up with a separator interposed therebetween to form an electrode group, and a battery case containing the electrode group together with an electrolyte, the battery case having an opening closed with a sealing plate which is provided with a positive electrode terminal, wherein the binder contains at least carboxylated styrene-butadiene copolymer latex, the conductive material contains metal flakes or short metal fibers, and an edge portion of the collector sheet of the negative electrode is electrically connected to the battery case via a collector plate welded to the edge portion of the collector sheet.

    摘要翻译: 镍氢二次电池具有正极,其包括含有镍化合物作为主要成分并负载在集电体片上的正极混合物,负极包括含有吸氢合金作为主要的负极混合物 组分,粘合剂和导电材料,并且其被支撑在集电体片上,所述正极和负极交替堆叠或者用分隔件间隔起来形成电极组,并且将包含所述电极组的电池壳组合在一起 在电解质中,电池壳体具有封闭的开口,该密封板设置有正极端子,其中粘合剂至少含有羧化苯乙烯 - 丁二烯共聚物胶乳,导电材料含有金属薄片或短金属纤维, 负极的集电体片的边缘部分是电气的 通过焊接到集电板的边缘部分的集电板连接到电池盒。