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11. 发明授权

US4808906A High voltage regulator for CRT anode voltage supply 失效
标题翻译：高压稳压器用于CRT阳极电压供应
公开(公告)号：US4808906A
公开(公告)日：1989-02-28
申请号：US182272
申请日：1988-04-15
申请人： Steven F. Liepe
发明人： Steven F. Liepe
IPC分类号： H02M3/335 , H04N3/185 , G05F1/613
CPC分类号： H04N3/185 , H02M3/33507
摘要： A voltage regulator for an anode voltage supply in a CRT powered by a deflection flyback pulse generator includes a voltage sensing network for providing a feedback signal to a summing amplifier. A pulse sensing network which may be a capacitive divider is connected between the output of the flyback pulse generator and the input to the summing amplifier. The resultant output of the summing amplifier is the flyback pulse level shifted with respect to a DC level which is applied to a MOSFET switch to turn it on whenever the flyback pulse goes above the MOSFET's threshold. The output of the MOSFET switches current through a shunt capacitor coupled to the output of the deflection flyback pulse generator for altering its capacitance thereby regulating the height of the flyback pulses, and thus regulating the anode voltage supply.
摘要翻译：用于由偏转反激脉冲发生器供电的CRT中的阳极电压源的电压调节器包括用于向求和放大器提供反馈信号的电压感测网络。可以是电容分压器的脉冲感测网络连接在回扫脉冲发生器的输出端和求和放大器的输入端之间。求和放大器的合成输出是相对于DC电平移动的反激脉冲电平，该DC电平施加到MOSFET开关以在反激脉冲高于MOSFET的阈值时将其导通。 MOSFET的输出通过耦合到偏转反激脉冲发生器的输出的并联电容器切换电流，以改变其电容，从而调节反激脉冲的高度，从而调节阳极电压。

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