1、 Three-phase AC voltage regulator

The three-phase AC voltage regulator is widely used in voltage testing instruments, lighting equipment, computers, X-ray equipment, photography technology equipment, communication systems, industrial robots, production line control devices, safety alarm systems, medical equipment, laboratory instruments, CNC machine beds, motors, air conditioners, air conditioners, television equipment, audio systems, and copiers.

Applicable scope:

This product is widely used in voltage testing instruments, lighting equipment, computers, X-ray equipment, photography technology equipment, communication systems, industrial robots, production line control devices, safety alarm systems, medical equipment, laboratory instruments, CNC machine tools, motors, air conditioners, air conditioners, television equipment, sound systems, and copiers.

2、 Principle of three-phase AC voltage regulator

The power frequency AC power supply becomes a stable DC power after being step-down, rectified, and filtered by a transformer. The remaining parts in the figure are the control parts that regulate the voltage and achieve voltage stabilization. After connecting the power supply to the load, the output voltage is obtained through a sampling circuit and compared with the reference voltage. If the output voltage is less than the reference voltage, the error value is amplified by the amplification circuit and sent to the input end of the regulator. The regulator adjusts the output voltage to increase until it is equal to the reference value; If the output voltage is greater than the reference voltage, the output is reduced by a regulator.