C2电容要求为低频率的电容,是电解电容嘛。如果不加是不是会影响电流变化?
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C1和C2是电源的去耦电容,滤除电源噪声的,通常0.1uF滤除高频,大于10uF电容滤除低频噪声。
不需要使用电解电容,使用low ESR的陶瓷电容即可。