The servo-AVR series high accuracy, fully automatic AC stabilized power supply is a key series of our products. It consists of an auto-transformer, servo motor, automatic control circuit, and so on. When utility is not stable or the load fluctuates, the automatic control circuit modifies the control output according to the output voltage change of power supply, which is used to drive the servo motor, and then the servo motor adjusts the carbon brush of the auto-transformer to maintain the output voltage at its rating and remain stable. APPLICATION Computers, test equipment, lighting systems, security systems, X-ray systems, communication systems, medical equipment, duplicators, audio equipment, industrial automation equipment, color film development equipment, digital control machine tools, calibration equipment, TV sets, office appliances.