Electronic ballast with integral shutdown timer
    1.
    发明授权
    Electronic ballast with integral shutdown timer 有权
    电子镇流器具有集成停机定时器

    公开(公告)号:US08004217B2

    公开(公告)日:2011-08-23

    申请号:US12013247

    申请日:2008-01-11

    IPC分类号: H05B37/02

    摘要: The present invention provides, in one embodiment, a gas discharge lamp ballast with an integral shutdown timer. The ballast includes a circuit for receiving AC power, a converter circuit for converting the AC power to DC power and a square wave oscillator powered from the DC power. A resonant circuit powered by the square wave oscillator supplies power to at least one gas discharge lamp. A time-delay circuit disables the square wave oscillator, without interrupting the DC power supplied to the oscillator, upon the passage of a predetermined period of time from power-up of the AC power. The ballast can be realized with only a marginal increase in cost and size of the ballast.

    摘要翻译: 在一个实施例中,本发明提供一种具有整体关闭定时器的气体放电灯镇流器。 镇流器包括用于接收AC电力的电路,用于将AC电力转换为DC电力的转换器电路和由DC电力供电的方波振荡器。 由方波振荡器供电的谐振电路向至少一个气体放电灯供电。 时间延迟电路在经过预定时间段从AC电源上电之后,禁止方波振荡器而不中断提供给振荡器的直流电力。 镇流器可以实现,只需稍微增加镇流器的成本和尺寸。