Power feeding apparatus for discharge lamp
    1.
    发明授权
    Power feeding apparatus for discharge lamp 有权
    放电灯供电装置

    公开(公告)号:US06838838B2

    公开(公告)日:2005-01-04

    申请号:US10445816

    申请日:2003-05-28

    摘要: In a power feeding apparatus, current flowing through the discharge lamp is controlled not to exceed a current limit value. Until the discharge status changes to the arc discharge, the current limit value is a first current limit value, and after that, the current limit value changes to the second current limit value. The first current limit value is 70% of the second current limit value or less, and further, for 0.2 ms or greater, the first current limit value is maintained after the discharge status changes to the arc discharge.

    摘要翻译: 在供电装置中,流过放电灯的电流被控制为不超过限流值。 在放电状态变为电弧放电之前,电流限制值为第一电流限制值,之后,电流限制值变为第二电流限制值。 第一电流限制值为第二电流限制值的70%以下,进一步为0.2ms以上时,在放电状态变为电弧放电后,保持第一电流限制值。