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公开(公告)号：US07714522B2
公开(公告)日：2010-05-11
申请号：US11573014
申请日：2005-08-04
IPC分类号： H01J11/04
CPC分类号： H05B41/2928 , Y02B20/208
摘要： A method and a circuit arrangement operate a discharge lamp, such as a high-intensity discharge lamp (HID) or ultra high performance lamps (UHP). The discharge lamp has first and second operating phases with a higher first or a lower second frequency of the lamp's alternating current (AC). The operating phases are activated alternatively at defined intervals and for defined periods of time, in order to achieve a stable arc discharge and only a low burnout or rise in burning voltage of the lamp during its life by configuring certain forms of electrode tips.
摘要翻译： 一种方法和电路装置操作诸如高强度放电灯（HID）或超高性能灯（UHP）的放电灯。 放电灯具有第一和第二工作阶段，灯的交流电（AC）具有较高的第一或更低的第二频率。 操作阶段以限定的间隔和限定的时间段被激活，以便通过配置某些形式的电极尖端来实现稳定的电弧放电，并且在其寿命期间仅仅是低的烧坏或灯的燃烧电压的上升。
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公开(公告)号：US20090009095A1
公开(公告)日：2009-01-08
申请号：US11573014
申请日：2005-08-04
IPC分类号： H05B41/24
CPC分类号： H05B41/2928 , Y02B20/208
摘要： A method and a circuit arrangement are described for operating a discharge lamp is described, especially a high-intensity discharge lamp or lamps (HID) or UHP [ultra high performance]-lamp, which is/are distinguished by a first and a second operating phase with a higher first or a lower second frequency of the lamp AC, wherein the operating phases are activated alternatingly at defined intervals and for defined periods of time, in order to achieve a stable arc discharge and only a low burnout or rise in burning voltage of the lamp during its life by configuring certain forms of electrode tips. Furthermore, are described an illumination unit with a discharge lamp and such a circuit arrangement as well as a projection system with a projection display and such an illumination unit.
摘要翻译： 描述了用于操作放电灯的方法和电路装置，特别是高强度放电灯或灯（HID）或UHP [超高性能] - 灯，其通过第一和第二操作 相位具有较高的灯AC的第一或更低的第二频率，其中操作阶段以限定的间隔交替地激活并且在确定的时间段内，以便实现稳定的电弧放电，并且只有低的烧坏或燃烧电压的上升 通过配置某些形式的电极尖端在其寿命期间。 此外，还描述了具有放电灯和这种电路装置的照明单元以及具有投影显示器和这种照明单元的投影系统。
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