Full automatic high precision AC Voltage regulator

When the power grid voltage fluctuates in a flash, the voltage regulator will compensate the voltage amplitude with the response speed of 10-30ms, and make it stable at + 2%, in the regulated power supply. In addition to the stable voltage regulator the most basic function, but also has overvoltage protection (more than +10% of the output voltage), undervoltage protection (lower than the output voltage -10%), phase protection, short-circuit and overload protection function to the most basic.