The voltage regulator is a device that makes the output voltage stable, and its main role is to stabilize the power supply voltage that fluctuates greatly and fails to meet the requirements of electrical equipment within its set value range to ensure that various circuits or electrical equipment can work normally under the rated operating voltage. It is widely used in industrial and mining enterprises, oil fields, railways, construction sites, schools, hospitals, posts and telecommunications, hotels, scientific research and other departments, for electronic computers, precision machine tools, computed tomography photography, precision instruments, test equipment, elevator lighting, imported equipment and production lines and other places that need power stable voltage, the regulator is an indispensable equipment.
The working principle of the voltage regulator is mainly to use the voltage regulation of the circuit and the circuit control to control the current. When the input voltage or load changes, the regulator's control circuit will be sampled, compared, amplified, and then drive the servo motor to rotate, so that the regulator carbon brush position change, by automatically adjusting the coil turn ratio, so as to maintain the output voltage stability.
In terms of type, regulators come in many forms, Including Zener diode based parallel regulators, transistor-based parallel regulators, transistor series regulators, transistor current regulators, transistor-controlled series regulators, operational amplifiers based parallel regulators, operational amplifiers based series regulators, switching voltage integrated circuit regulators and monolithic regulators.
In general, the voltage regulator plays a crucial role in modern electronic equipment and systems, providing a solid power supply guarantee for the stable operation of the equipment. For more information on voltage regulators, it is recommended to consult electronic engineering related books or consult experts in related fields.