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1. CN101213884 - Method of driving a discharge lamp in a projection system, and driving unit

Office China
Application Number 200680023809.X
Application Date 23.06.2006
Publication Number 101213884
Publication Date 02.07.2008
Grant Number 101213884
Grant Date 06.06.2012
Publication Kind B
IPC
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
41
Circuit arrangements or apparatus for igniting or operating discharge lamps
14
Circuit arrangements
36
Controlling
H05B 41/36
CPC
H05B 41/36
Applicants Koninkl Philips Electronics NV
皇家飞利浦电子股份有限公司
Inventors Deppe Carsten
C·德佩
Munters Tom
T·芒特斯
Agents liya fei tanyou xiang
中国专利代理(香港)有限公司 72001
中国专利代理(香港)有限公司 72001
Priority Data 05105872.5 30.06.2005 EP
Title
(EN) Method of driving a discharge lamp in a projection system, and driving unit
(ZH) 驱动投射系统中的放电灯的方法以及驱动单元
Abstract
(EN)
The invention describes a method of driving a discharge lamp (1) in a projection system (10), wherein, in a feed-forward control process, system status data (SDL, SDF, SDV) comprising static information pertaining to the design of the projection system and/or dynamic information pertaining to the projection system and/or dynamic information pertaining to the lamp operation are obtained. Based on the system status data (SDL, SDF, SDV), a momentary target light waveshape (LWT, LWT') required by the projection system (10) and a waveshape correcting function are determined. Subsequently, the actual current (I) of the discharge lamp (1) is controlled regulated according to a momentary required waveshape (RW) which is determined based on the target light waveshape (LWT, LWT') and the waveshape correcting function. Moreover the invention describes an appropriate driving unit (11) for driving a discharge lamp (1) and a projection system (10), comprising such a driving unit (11).

(ZH)

本发明描述了一种驱动投射系统(10)中的放电灯(1)的方法,其中,在前馈控制过程中,系统状态数据(SDL、SDF、SDV)包括与投射系统的设计有关的静态信息和/或与投射系统有关的动态信息和/或与灯的运行有关的动态信息。在系统状态数据(SDL、SDF、SDV)的基础上确定投射系统(10)所要求的瞬时目标光波形(LWT、LWT′)和波形校正函数。接着根据所要求的瞬时波形(RW)对放电灯(1)的实际电流(I)进行控制调节,在目标光波形(LWT、LWT′)和波形校正函数的基础上确定所要求的瞬时波形(RW)。本发明还描述了用于区段放电灯(1)的适当的驱动单元(11)以及投射系统(10),这种投射系统(10)包括这种驱动单元(11)。