A voltage regulator is a device that stabilizes the output voltage. The voltage regulator is composed of constant voltage, control circuit and servo motor. When the input voltage or load changes, the control circuit samples, compares and amplifies, and then drives the servo motor to rotate to change the position of the carbon brush of the voltage regulator. By automatically adjusting the coil turns ratio, the output voltage is stable.
Voltage regulator is a kind of power supply circuit or equipment that can automatically adjust the output voltage. Its function is to stabilize the power supply voltage that fluctuates greatly and fails to meet the requirements of electrical equipment within its set value range, so that various circuits or electrical equipment can work normally under the rated working voltage.
The original power regulator stabilized the voltage by the jump of the relay. When the grid voltage fluctuates, the automatic correction circuit of the power regulator starts to make the internal relay act. The advantage of this circuit is that the circuit is simple, but the disadvantage is that the voltage stabilizing accuracy is not high, and each jump shift of the relay will cause an instantaneous interruption of the power supply and spark interference.
This greatly interferes with the reading and writing of computer equipment, which is easy to cause error signals in the computer and damage the hard disk in serious cases.
