A8GT-70G0T-EW，，A8GT-70G0T-EW

A8GT-70G0T-EW
A8GT-70G0T-EW
A8GT-70G0T-EW

充电器电源干扰分量

   在充电器前端，交流电源电压整流生成充电器高电压轨。这样，充电器的开关电压分量叠加在一个电源电压一半的正弦波上。与开关干扰相似，此电源电压也是通过开关隔离变压器形成耦合。在50Hz或60Hz时，该分量的频率远低于开关频率，因此，其有效的耦合阻抗相应更高。电源电压干扰的严重程度取决于对地并联阻抗的特性，同时还取决于触摸屏控制器对低频的灵敏度。

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