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LM358作比较器时遇到的奇怪现象

Other Parts Discussed in Thread: LM358, TINA-TI

 

使用LM358作比较器,用multisim仿真,发现输出有好几千伏,如下图:

输出用稳压管稳压后,再仿真,发现有相位差,如下图: