Stabilizers are the devices widely used in domestic as well as commercial field for addressing the problem of voltage fluctuation to stabilize the inconsistent power supply. As we all know that all of the electrical equipment can work efficiently with maximum performance only when they are being running at their rated voltage. Servo voltage stabilizer serves this need by allowing the input and output voltage to be consistent through the operation of machi9nery. All the electrical and electronic devices encounter with over voltage and under voltage issue leaving the equipment vulnerable to serious damage, and that's where stabilizer does its work by correcting the fluctuating voltage to maintain the desired and consistent voltage level. The servo motor fitted inside gets controlled by the control circuit which involves comparing of output voltage with the in-built power source acting as a reference voltage.