Electronic ballast
    1.
    发明申请
    Electronic ballast 有权
    电子镇流器

    公开(公告)号:US20030001522A1

    公开(公告)日:2003-01-02

    申请号:US10006021

    申请日:2001-12-05

    CPC classification number: H05B41/28 H05B41/282 Y02B20/183

    Abstract: An electronic ballast for driving a gas discharge lamp includes a rectifier, a valley-fill circuit, an inverter having first and second series-connected controllably conductive device having complementary duty cycles, a control circuit for controlling the controllably conductive device, and an independent cat ear power supply to provide power to the ballast control circuits. The result is a ballast having substantially improved THD, and current crest factor. In a preferred embodiment, the valley-fill circuit includes an energy storage device that stores energy in response to a controllably conductive device. In an especially preferred embodiment, the controllably conductive device of the valley-fill circuit is also one of the controllably conductive devices of the inverter.

    Abstract translation: 用于驱动气体放电灯的电子镇流器包括整流器,谷底填充电路,具有互补占空比的第一和第二串联可控导电器件的逆变器,用于控制可控导电器件的控制电路和独立猫 耳朵电源为镇流器控制电路提供电源。 结果是具有明显改善的THD和电流波峰因数的镇流器。 在优选实施例中,谷底填充电路包括能量存储装置,其响应于可控导电装置而储存能量。 在特别优选的实施例中,谷底填充电路的可控导电器件也是逆变器的可控导电器件之一。

    Electronic ballast
    2.
    发明申请
    Electronic ballast 有权
    电子镇流器

    公开(公告)号:US20030001516A1

    公开(公告)日:2003-01-02

    申请号:US09887848

    申请日:2001-06-22

    CPC classification number: H05B41/282 H05B41/28 Y02B20/183

    Abstract: An electronic ballast for driving a gas discharge lamp includes a rectifier, a valley-fill circuit, an inverter having first and second series-connected controllably conductive switches having complementary duty cycles, a control circuit for controlling the controllably conductive switches, and an independent cat ear power supply to provide power to the ballast control circuits. The result is a ballast having substantially improved power factor, THD, and current crest factor. In a preferred embodiment, the valley-fill circuit includes an energy storage device that stores energy in response to a controllably conductive switch. In an especially preferred embodiment, the controllably conductive switch of the valley-fill circuit is also one of the switches of the inverter.

    Abstract translation: 用于驱动气体放电灯的电子镇流器包括整流器,谷底填充电路,具有互补占空比的第一和第二串联可控导通开关的逆变器,用于控制可控导电开关的控制电路和独立的猫 耳朵电源为镇流器控制电路提供电源。 结果是具有明显改善的功率因数,THD和电流波峰因数的镇流器。 在优选实施例中,谷底填充电路包括能量存储装置,其响应于可控制导电的开关而存储能量。 在特别优选的实施例中,谷底填充电路的可控导通开关也是逆变器的开关之一。

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