80-稳压ＩＣ可以输出稳定的直流电压，为什么输出端还有装滤波电容
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稳压ＩＣ虽然可以输出稳定电压，但是面对负载的快速电流变化。ＩＣ的稳压调节速度却跟不上变化，而且无法提供瞬间变化的大电流，造成快速波动，需要用滤波电容进行滤波。
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