A: lm317 adjustable DC voltage regulator circuit: When the input voltage or load changes, the control circuit samples, compares, amplifying, and then drives the servo motor to rotate, so that the position of the regulator carbon brush changes, and automatically adjusts the coil turn ratio to maintain the stability of the output voltage.
When the regulated power supply is powered on, do not disassemble the regulated power supply or pull the input and output cable of the regulated power supply at will to prevent electric shock or other electrical safety accidents.
The voltage regulator power supply input and output connection must be reasonably arranged to prevent the stampede worn out, resulting in leakage accidents.