The thyristor voltage regulator is a kind of power control equipment used in the electroplating industry. It uses the thyristor as the main power control component, and adjusts the size of the output current by controlling the conduction angle of the thyristor, thereby completing the electroplating The current in the process is regulated and stabilized. The thyristor voltage regulator has the advantages of small size, high efficiency, strong reliability, and simple operation, and is widely used in various electroplating processes.

Working principle of silicon controlled voltage regulator:

1. Voltage adjustment

The thyristor voltage regulator first steps down the AC power through the transformer, and then rectifies the DC power through the full-wave bridge. Then, the conduction angle of the thyristor is controlled through the trigger circuit of the thyristor, and then the output voltage is adjusted. .While adjusting the voltage, the thyristor voltage regulator can also accurately adjust and stabilize the voltage according to the requirements of the electroplating process.

2. Current stability

The thyristor voltage regulator adjusts the size of the current by controlling the conduction angle of the thyristor. During the electroplating process, according to the requirements of the electroplating process, the required current value is set through software or hardware, and the controllable The conduction angle of silicon is used to achieve a stable output of current. After two steps of voltage adjustment and current stabilization, the thyristor voltage regulator can ensure that the current and voltage during the electroplating process are in a stable state.

3. Maintenance control

During the working process, the thyristor voltage regulator also has some maintenance functions, such as over-temperature protection, over-current protection, over-voltage protection, etc. When the voltage, current or temperature exceeds the set value, the thyristor voltage regulator will Automatically cut off the output to maintain the safe operation of the rectifier and electroplating equipment.