Random curve change type digital alternating current voltage stabilized power supply

The invention provides a random curve change type digital alternating current voltage stabilized power supply. The random curve change type digital alternating current voltage stabilized power supply comprises an AC input end, an AC filter circuit, a bridge rectifier filter circuit, a boost circuit, a full-bridge inverter circuit, a feedback loop control circuit and a micro control unit, wherein the inputted alternating current is orderly rectified and filtered by the AC filter circuit and the bridge rectifier filter circuit, after that, the boost circuit performs voltage-current double loop control on the direct current outputted by the bridge rectifier filter circuit; then the full-bridge inverter circuit inverts the direct current outputted by the boost circuit into the alternating current, and the output of the full-bridge inverter circuit passes through the closed loop feedback of the feedback loop control circuit which is controlled by the micro control unit, so that an effective value of the outputted alternating current is changed at random according to a preset range. The random curve change type digital alternating current voltage stabilized power supply provided by the invention can satisfy a power requirement of high precision equipment in a certain range which requires random variation of a supply voltage.