Microprocessor Controlled Automatic Voltage Stabilizer incorporates features such as regulated relay power supply, power factor corrector and zero current switching. The Stabilizer is energy efficient in nature. The Stabilizer has digital display to indicate input voltage, output voltage, load current, delay time, low cut, high cut etc. The Microprocessor Controlled Automatic Voltage Stabilizer eliminates air conditioner starting time delay when the voltage stabilizer is turned on after a long delay.