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关于LM2903做双门限比较电路的问题

Other Parts Discussed in Thread: LM2903

最近利用LM2903比较器做了一个双门限比较电路。上门限是12V经过分压得到6.85V,下门限是12V经过分压得到2.45V。比较电压为13.7V时,比较电路不能正常工作。