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LM2587补偿端是如何起作用的

Other Parts Discussed in Thread: LM2587

   最近在用LM2587做升压转换器,在查看datasheet时,对于LM2587补偿端的作用不是很明白。

在demo电路中,补偿端连接一个RC,参考电路里面的RC值,带上负载,RC值调节好了,PWM波形看起来就像教科书里面的一样,如果没有调试好,PWM波形就很丑。RC是提供震荡电路的吗?  为什么叫做补偿引脚?