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1. 发明授权

EP2020164B1 METHOD OF SHUTTING DOWN A HIGH PRESSURE DISCHARGE LAMP AND DRIVING UNIT FOR DRIVING A HIGH PRESSURE DISCHARGE LAMP 有权
标题翻译：方法用于关断高压放电灯驱动单元用于驱动高气压放电灯
公开(公告)号：EP2020164B1
公开(公告)日：2010-06-02
申请号：EP07735647.5
申请日：2007-04-25
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： TOLLE, Tobias Georg , SCHREEL, Ludo Valère Maurice , DEPPE, Carsten
IPC分类号： H05B41/292
CPC分类号： H05B41/2928 , H04N9/3144 , H04N9/3155 , H05B41/384 , Y02B20/206

2. 发明公开

EP2020164A2 METHOD OF SHUTTING DOWN A HIGH PRESSURE DISCHARGE LAMP AND DRIVING UNIT FOR DRIVING A HIGH PRESSURE DISCHARGE LAMP 有权
标题翻译：方法用于关断高压放电灯驱动单元用于驱动高气压放电灯
公开(公告)号：EP2020164A2
公开(公告)日：2009-02-04
申请号：EP07735647.5
申请日：2007-04-25
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： TOLLE, Tobias Georg , SCHREEL, Ludo Valère Maurice , DEPPE, Carsten
IPC分类号： H05B41/292
CPC分类号： H05B41/2928 , H04N9/3144 , H04N9/3155 , H05B41/384 , Y02B20/206
摘要： The invention describes a method of shutting down a high pressure discharge lamp (1) in which a pair of electrodes (2) is disposed in an arc tube (3), which method comprises reducing, upon receipt of a shut-down request (SR), the lamp power (P) towards a reduced power level (PR) required to sustain a long-term arc discharge between the electrodes (2), and driving the lamp (1) towards the reduced power level (PR) for a reduced power duration before completely shutting down the lamp power (P), whereby, prior to reducing the lamp power (P) towards the reduced power level (PR), the lamp power (P) is reduced to an undershoot power level (Pu), which undershoot power level (Pu) is lower than the reduced power level (PR) required to sustain a long- term arc discharge between the electrodes (2), and the lamp is driven at this undershoot power level (Pu) for an undershoot power duration (tu) before increasing the lamp power (P) again to approach the reduced power level (PR). Moreover the invention describes an appropriate driving unit (4) for driving a high pressure discharge lamp (1) and an image rendering system (40), particularly a projector system, comprising such a driving unit (4).

3. 发明公开

EP1665534A1 HIGH FREQUENCY CONTROL OF A SEMICONDUCTOR SWITCH 审中-公开
标题翻译：半导体开关的高压变频调速
公开(公告)号：EP1665534A1
公开(公告)日：2006-06-07
申请号：EP04744831.1
申请日：2004-08-25
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： TOLLE, Tobias Georg , DÜRBAUM, Thomas , SAUERLÄNDER, Georg , LOPEZ, Toni
IPC分类号： H03K17/0412
CPC分类号： H03K17/04163 , H03K17/04123 , H03K2217/0036
摘要： Resonant gate driver circuits provide for efficient switching of, for example, a MOSFET. However, often an operation of the resonant gate driver circuit does not allow for an application where high switching frequencies are required. According to the present invention, a pre-charging of the inductor of the resonant gate driver circuit is performed. This allows for a highly efficient and fast operation of the MOSFETs.

4. 发明公开

EP1989927A1 METHOD AND DRIVING UNIT FOR DRIVING A GAS DISCHARGE LAMP 有权
标题翻译：方法和驱动装置用于操作气体放电灯
公开(公告)号：EP1989927A1
公开(公告)日：2008-11-12
申请号：EP07705831.1
申请日：2007-02-09
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： DEPPE, Carsten , VAN ESVELD, Hendrik Anton , TOLLE, Tobias Georg
IPC分类号： H05B41/288 , H05B41/392
CPC分类号： H05B41/2882 , H05B41/2926 , H05B41/384 , H05B41/3928 , Y02B20/202 , Y02B20/206
摘要： This invention describes a method for driving a gas discharge lamp (1), whereby an alternating voltage (U) is applied to the gas discharge lamp (1), the alternating voltage (U) having a first polarity during a first time interval (tfl, tsl) and a second polarity opposite to the first polarity during a second time interval (tf2, ts2). In this method, the first time interval (tfl) and the second time interval (tf2) are repeated alternately during a first operation mode. During a second operation mode, the electrical power (P) being provided to the gas discharge lamp (1) is smaller compared to the first operation mode, and the first time interval (tsl) and the second time interval (ts2) are repeated alternately, whereby in this second operation mode the duration of the first time interval (tsl) is at least a multiple of the duration of the second time interval (ts2). Furthermore, the invention describes an appropriate driving unit (4) for driving a gas discharge lamp (1), and an image rendering system, particularly a projector system, comprising a gas discharge lamp (1) and such a driving unit (4).

5. 发明授权

EP1989927B1 METHOD AND DRIVING UNIT FOR DRIVING A GAS DISCHARGE LAMP 有权
标题翻译：用于驱动气体放电灯的方法和驱动单元
公开(公告)号：EP1989927B1
公开(公告)日：2011-01-19
申请号：EP07705831.1
申请日：2007-02-09
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： DEPPE, Carsten , VAN ESVELD, Hendrik Anton , TOLLE, Tobias Georg
IPC分类号： H05B41/288 , H05B41/392
CPC分类号： H05B41/2882 , H05B41/2926 , H05B41/384 , H05B41/3928 , Y02B20/202 , Y02B20/206
摘要： This invention describes a method for driving a gas discharge lamp (1), whereby an alternating voltage (U) is applied to the gas discharge lamp (1), the alternating voltage (U) having a first polarity during a first time interval (tfl, tsl) and a second polarity opposite to the first polarity during a second time interval (tf2, ts2). In this method, the first time interval (tfl) and the second time interval (tf2) are repeated alternately during a first operation mode. During a second operation mode, the electrical power (P) being provided to the gas discharge lamp (1) is smaller compared to the first operation mode, and the first time interval (tsl) and the second time interval (ts2) are repeated alternately, whereby in this second operation mode the duration of the first time interval (tsl) is at least a multiple of the duration of the second time interval (ts2). Furthermore, the invention describes an appropriate driving unit (4) for driving a gas discharge lamp (1), and an image rendering system, particularly a projector system, comprising a gas discharge lamp (1) and such a driving unit (4).
摘要翻译：本发明描述了一种用于驱动气体放电灯（1）的方法，由此向气体放电灯（1）施加交流电压（U），在第一时间间隔期间具有第一极性的交流电压（U），ts1）以及在第二时间间隔（tf2，ts2）期间与第一极性相反的第二极性。在该方法中，在第一操作模式期间交替地重复第一时间间隔（tfl）和第二时间间隔（tf2）。在第二操作模式期间，提供给气体放电灯（1）的电功率（P）与第一操作模式相比较小，并且第一时间间隔（tsl）和第二时间间隔（ts2）交替地重复由此在该第二操作模式中，第一时间间隔（ts1）的持续时间至少是第二时间间隔（ts2）的持续时间的倍数。此外，本发明描述了用于驱动气体放电灯（1）的适当驱动单元（4）以及包括气体放电灯（1）和这种驱动单元（4）的图像渲染系统，特别是投影仪系统。

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