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1. 发明授权

US06856104B2 High voltage supply for a picture tube 失效
标题翻译：高压电源用于显像管
公开(公告)号：US06856104B2
公开(公告)日：2005-02-15
申请号：US10470798
申请日：2002-01-21
申请人： Daniel Lopez , Jean-Paul Louvel , Martin Läufer
发明人： Daniel Lopez , Jean-Paul Louvel , Martin Läufer
IPC分类号： H04N3/185 , H04N3/26 , H01J29/52
CPC分类号： H04N3/26 , H04N3/185
摘要： The high voltage supply for a picture tube comprises a high voltage transformer, which generates the anode voltage of the picture tube, and a high voltage module 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 is coupled to the transformer 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 of the switched mode power supply provides the high voltage isolation, and at least the high voltage part of the module including the transformer is potted with a resin. The high voltage module provides advantageously also an output 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 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：用于显像管的高压电源包括产生显象管的阳极电压的高压变压器和具有高于阳极电压的开关模式电源的高压模块，用于提供电网电压。高压变压器的输出耦合到开关模式电源的变压器，用于将开关模式电源的输出电压加到高压变压器的高电压上。优选地，开关模式电源的变压器提供高电压隔离，并且至少包括变压器的模块的高电压部分用树脂封装。高电压模块还有利地提供用于与显像管的阳极的连接的输出，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整装置的控制级。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。

2. 发明授权

US06703800B2 Circuit for generating a dynamic focusing voltage for a picture tube 失效
标题翻译：用于产生用于显像管的动态聚焦电压的电路
公开(公告)号：US06703800B2
公开(公告)日：2004-03-09
申请号：US10296454
申请日：2002-11-25
申请人： Franz Dieterle , Michael Loesle , Martin Läufer
发明人： Franz Dieterle , Michael Loesle , Martin Läufer
IPC分类号： H01J2958
CPC分类号： H04N3/26
摘要： In a television receiver, a dynamic, parabolic correction voltage for focusing is generated by way of a transformer whose primary winding is fed with the line deflection current or a line-frequency voltage and to whose secondary winding a capacitor is connected, which capacitor integrates the sawtooth-waveform current in the secondary winding into a parabolic voltage. New types of picture tubes require a correction voltage which does not have a parabolic profile, rather whose form corresponds approximately to the cross section through the center of a bathtub. It is an object to provide a simple circuit for generating such a bathtub-waveform correction voltage. This is achieved by virtue of the fact that a frequency-dependent network, in particular a series resonant circuit comprising an inductance and a capacitance, is connected in parallel with the capacitor, which network is tuned in such a way that the network effects an additional sinusoidal current with a period duration approximately equal to the line trace period. The circuit is particularly simple, requires no active elements, effects a low power loss, can be used with a current transformer and furthermore enables blanking of the correction voltage during the vertical blanking interval.
摘要翻译：在电视接收机中，通过变压器产生用于聚焦的动态抛物线校正电压，其中初级绕组馈送线偏转电流或线频电压，并且其次级绕组连接电容器，该电容器集成次级绕组中的锯齿波电流成抛物线电压。新型显像管需要不具有抛物面轮廓的校正电压，而其形状大致对应于通过浴缸中心的横截面。本发明的目的是提供一种用于产生这种浴缸波形校正电压的简单电路。这是通过以下事实实现的：由频率相关的网络，特别是包括电感和电容的串联谐振电路与电容器并联连接，该网络以这样一种方式进行调整，使得网络实现额外的正弦电流的周期持续时间大约等于线路周期。该电路特别简单，不需要有源元件，实现低功耗，可与电流互感器一起使用，此外可在垂直消隐间隔内消除校正电压。

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