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1. 发明申请

WO2002062051A1 HIGH VOLTAGE SUPPLY FOR A PICTURE TUBE 审中-公开
标题翻译：用于图像管的高压电源
公开(公告)号：WO2002062051A1
公开(公告)日：2002-08-08
申请号：PCT/EP2002/000544
申请日：2002-01-21
申请人： THOMSON LICENSING S.A. , LOPEZ, Daniel , LOUVEL, Jean-Paul , LÄUFER, Martin
发明人： LOPEZ, Daniel , LOUVEL, Jean-Paul , LÄUFER, Martin
IPC分类号： H04N3/185
CPC分类号： H04N3/26 , H04N3/185
摘要： The high voltage supply for a picture tube (T) comprises a high voltage transformer (DST), which generates the anode voltage of the picture tube, and a high voltage module (M) with a switched mode power supply for providing a grid voltage, which is higher than the anode voltage. The output of the high voltage transformer (DST) is coupled to the transformer (TR) of the switched mode power supply, for adding the output voltage of the switched mode power supply to the high voltage of the high voltage transformer. Preferably, the transformer (TR) of the switched mode power supply provides the high voltage isolation, and at least the high voltage part of the module (M) including the transformer is potted with a resin. The high voltage module provides advantageously also an output (3) for a connection to the anode of the picture tube, so that the module can be used with present high voltage transformers, without requiring any modification. The primary side of the switched mode power supply comprises a control stage (9) with adjustable means for setting a specific output voltage of the power supply. In a preferred embodiment, this output voltage is adjustable between 300 and 500 Volts, with respect to the high voltage of the high voltage transformer.
摘要翻译：用于显像管（T）的高压电源包括产生显像管的阳极电压的高压变压器（DST）和用于提供电网电压的开关模式电源的高压模块（M）其高于阳极电压。高压变压器（DST）的输出耦合到开关模式电源的变压器（TR），用于将开关模式电源的输出电压加到高压变压器的高压上。优选地，开关模式电源的变压器（TR）提供高电压隔离，并且至少包括变压器的模块（M）的高压部分用树脂封装。高电压模块还有利地提供用于连接到显像管的阳极的输出（3），使得该模块可以与当前的高压变压器一起使用，而不需要任何修改。开关模式电源的初级侧包括具有用于设定电源的特定输出电压的可调节装置的控制级（9）。在优选实施例中，相对于高压变压器的高电压，该输出电压可在300和500伏特之间调节。

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