Voltage regulator is a device that stabilizes the output voltage. Voltage regulator has a stabilized constant voltage, control circuit, and servo motor and other components. When the input voltage or load changes, the control circuit samples, compares, amplifies, and then drives the servo motor to rotate, so that the position of the regulator's carbon brushes changes, and the output voltage is stabilized by automatically adjusting the coil turns ratio.
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Voltage regulator has large tens to thousands of watts of AC voltage regulator, is to supply large experiments and industrial, medical equipment work power. There are also small AC voltage stabilizers of a few watts to a few kilowatts, which are to provide high quality power for small laboratories or household appliances.
Based on the different nature of the output of the regulator, the regulator is generally divided into AC voltage regulator (AC voltage regulator) and DC voltage regulator (DC voltage regulator) two categories. The following focuses on DC regulated power supply, referred to as voltage stabilized power supply.
Based on the operating state of the regulator, the voltage regulator is often divided into two categories: linear voltage regulator and switching voltage regulator. In addition, there is a small power supply that uses a voltage regulator.