Circuit device
    2.
    发明授权
    Circuit device 失效
    电路设备

    公开(公告)号:US06385068B2

    公开(公告)日:2002-05-07

    申请号:US09883429

    申请日:2001-06-18

    IPC分类号: H02M75387

    CPC分类号: H05B41/3927

    摘要: A lamp is operated using a DC-AC converter provided with switches and a control circuit for controlling the switches and generating a high-frequency AC lamp current. In each half period of the control signal generated by the control circuit, each of the switching elements is rendered conductive during successive time intervals. The lamp can be dimmed without instabilities by adjusting the second time interval in each half period of the control signal.

    摘要翻译: 使用具有开关的DC-AC转换器和用于控制开关并产生高频AC灯电流的控制电路来操作灯。 在由控制电路产生的控制信号的每个半周期中,每个开关元件在连续的时间间隔期间变为导通。 通过调整控制信号的每个半周期中的第二时间间隔,灯可以变暗,而不会发生不稳定。