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1. 发明申请

WO2010007557A1 METHOD OF DRIVING A GAS-DISCHARGE LAMP 审中-公开
标题翻译：驱动气体放电灯的方法
公开(公告)号：WO2010007557A1
公开(公告)日：2010-01-21
申请号：PCT/IB2009/052945
申请日：2009-07-07
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , PEKARSKI, Pavel , POLLMANN-RETSCH, Jens , VAN DEN BERGH, John-John, P., J.
发明人： PEKARSKI, Pavel , POLLMANN-RETSCH, Jens , VAN DEN BERGH, John-John, P., J.
IPC分类号： H05B41/292
CPC分类号： H05B41/2928
摘要： The invention describes a method of driving a gas-discharge lamp (1) enclosing a pair of electrodes (3, 4), wherein, during a normal mode of operation, the lamp (1) is driven according to a stabilisation driving scheme, which stabilisation driving scheme comprises a repeating sequence (SAB) of driving schemes (A, B), wherein each driving scheme (A, B) causes a particular shape change of the electrodes (3, 4), and the driving scheme sequence (SAB) is compiled such that the electrodes (3, 4) of the lamp (1) are subject to repetitive shape changes. During an ancillary mode of operation in which an alteration in light output of the lamp (1) is essentially imperceptible to an observer, the lamp (1) is driven according to a remodelling driving scheme (C) to extensively remodel the electrodes (3, 4). The invention further describes a driving unit (10) for driving such a gas-discharge lamp (1), and a projection system (22) with such a lamp (1) and driving unit (10).
摘要翻译：本发明描述了一种驱动封闭一对电极（3）的气体放电灯（1）的方法，其中在正常操作模式期间，灯（1）根据稳定驱动方案被驱动，其中稳定驱动方案包括驱动方案（A，B）的重复序列（SAB），其中每个驱动方案（A，B）引起电极（3,4）的特定形状变化，并且驱动方案序列（SAB）被编译成使得灯（1）的电极（3,4）经受重复的形状变化。在灯（1）的光输出的改变对于观察者基本上不可察觉的辅助操作模式中，灯（1）根据重塑驱动方案（C）被驱动以广泛地改造电极（3， 4）。本发明还描述了用于驱动这种气体放电灯（1）的驱动单元（10）和具有这种灯（1）和驱动单元（10）的投影系统（22）。

2. 发明申请

WO2008053428A1 DRIVER FOR OPERATING A GAS DISCHARGE LAMP 审中-公开
标题翻译：用于操作气体放电灯的驱动器
公开(公告)号：WO2008053428A1
公开(公告)日：2008-05-08
申请号：PCT/IB2007/054400
申请日：2007-10-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VAN DEN BERGH, John-John, P., J.
发明人： VAN DEN BERGH, John-John, P., J.
IPC分类号： H05B41/292
CPC分类号： H05B41/2928 , Y02B20/208
摘要： A driver (1) for driving a gas discharge lamp (2) comprises: a controllable current source (3); a controller (4) for controlling the current source (3); measuring means (5) for measuring the distance between the lamp electrodes (21, 22). The controller controls the current source (3) such as to generate a commutating lamp current with a predefined current frequency (f) and a duty cycle (Δ). The controller is capable of operating in a modulated duty cycle mode in which the duty cycle has a first value (Δ1) during a first phase (P1) alternated with a second value (Δ2) equal to one minus the first value (Δ2 = 1 - Δ1) during a second phase (P2), wherein the second phase (P2) and first phase (P1) have mutually equal duration, and wherein switching between the second phase and first phase and vice versa occurs at a predefined duty cycle switching frequency (f Δ ).
摘要翻译：用于驱动气体放电灯（2）的驱动器（1）包括：可控电流源（3）; 控制器（4），用于控制电流源（3）; 用于测量灯电极（21,22）之间的距离的测量装置（5）。控制器控制电流源（3），以产生具有预定的当前频率（f）和占空比（ω）的整流灯电流。控制器能够以调制占空比模式工作，其中占空比在第一阶段（P1）期间具有与第一值（α2）相等的第一值（θ2）减去第一值（α1）在第二阶段（P2）期间，第二相（P2）和第一相（P1）具有相互相等的持续时间，并且其中第二相和第一相之间的切换发生在预定义的占空比切换频率（f <θ>）。

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