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TL431: 如附件的电路,有一个300hz的毛刺,请帮忙分析一下原因,多谢!

Part Number: TL431


  • HI

       输入输出电容都偏小,建议加大一些,特别是输出。

       首先确认毛刺是否因为输入就有? 如果输入没有,仅仅输出有,确认一下GND(建议选择独立和较为干净的GND, 不要和其他大电流的GND共地。同时要注意GND Layout)