ROTATING BODY CONTROLLER

摘要

PURPOSE:To provide the rotating body controller capable of increasing a phase control gain by increasing a sampling frequency of phase error calculation and making stable phase control. CONSTITUTION:A speed detecting circuit 5 detects the rotational speed of a cylinder 2 in accordance with the frequency signal generated by rotation of this cylinder 2. A speed error calculating circuit 6 calculates a speed error and outputs this speed error to an adding circuit 9. A phase detecting circuit 107 detects the rotation phase of the cylinder 2 and a target phase calculating circuit 109 calculates a target phase at every generation of the frequency signal. A phase error calculating circuit 108 calculates a phase error from the detected phase and the target phase and supplies this phase error to the adding circuit 9. The adding circuit 9 adds the phase error and the speed error and outputs the result thereof to a cylinder driving circuit 10, thereby controlling the rotation of the cylinder 2.