Why can’t a semiconductor diode be used to rectify current at very low AC voltages?

The range of operating voltages of a semiconductor diode is limited from the side of low voltages due to an increase in the resistance of the p – n junction with a decrease in the forward voltage. The maximum value of the operating voltage of the diode is determined by the breakdown voltage of the p – n – junction at reverse voltage.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.