只要负载电阻足够大，就可以使这一时间常数远大于一个纹波周期。
As long as the load resistor is large enough so that this time constant is much longer than the time of one ripple cycle.
只要负载电阻足够大，就可以使这一时间常数远大于一个纹波周期。
As long as the load resistor is large enough so that this time constant is much longer than the time of one ripple cycle.
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