It changes between a maximum and minimum peak voltage in order to generate the alternating current.

它在最大和最小峰值电压之间变化以产生交流电。

Well, when a current alternates quickly, it's changing back and forth between maximum and minimum values, known as peak current.

好吧，当电流快速交替时，它会在最大值和最小值之间来回变化，称为峰值电流。