Frequency servo circuit block diagram

Frequency servo circuit block diagram

Shown is the block diagram of the frequency servo circuit . At the beginning, the starting circuit adds a voltage to the Hall element , so current flows through Hl and H2. At this time, due to the magnetic pole effect of the magnet, one of the Hall elements generates a voltage , which provides current to the motor coil through the amplification of JC1 or IC2 . As a result, a magnetic field is generated that drives the magnet to rotate, and the rotor magnet begins to rotate. After starting to rotate, the starting circuit stops working.