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UC3824: UC3824内部PWM comparator的上下限

Part Number: UC3824


手册上是否在ramp peak 和ramp vally这里查看

如果是这样,那么想请教一下,一般在开关电源载波交截时,载波是要么正负对称,要么是从0V到某个电压

这里偏置1.25V的原因是什么,和上述载波交截类似吗,可以有相关的技术文件介绍一下吗,谢谢