A voltage stabilizer is a device that provides a stable output voltage according to the needs of electrical equipment. It is divided into parameter (resonance) type, autocoupling (ratio) adjustment type, high-power compensation type, switching type and other types.
A transformer is a static device with two or more windings. In order to transmit electrical energy, it converts the AC voltage and current of one system into the voltage and current of another system through electromagnetic induction at the same frequency. Usually these values are different. When the voltage provided by the power grid is different from the rated input voltage of the load device, a transformer must be installed.
A voltage stabilizer is relative to a transformer. A transformer is a device that changes the AC voltage. The main components are the primary coil, the secondary coil and the iron core (winding machine). Transformers are often used in electrical equipment and wireless circuits to increase and decrease voltage, match impedance, and provide safety isolation. The voltage stabilizer is composed of a voltage regulating circuit, a control circuit, and a servo motor. When the input voltage or load changes, the control circuit samples, compares, and amplifies, and then drives the servo motor to rotate, so that the position of the voltage regulator carbon brush changes, and the output voltage is kept stable by actively adjusting the coil turns ratio. Larger capacity voltage stabilizers also work on the principle of voltage compensation.