| 摘要 |
PURPOSE:To simplify the circuit constitution of a position controller to perform stable position control without the change of speed by obtaining position detection information synchronized with a certain reference period and a position command signal. CONSTITUTION:A reference wave S2 having a reference wave period T is obtained form a clock signal S1 having a certain period by a reference wave generator 2 of a position controller and is inputted to a synchronizing signal generator 12 and a position-phase converter 3. A position wave S3 having the reference wave S2 and a phase difference as position information is obtained by the converter 3, and the phase of the position wave S3 and that of the reference wave S2 are compared with each other by a phase comparator 4 to output a phase difference signal S4. A time operator 10 is provided in parallel with a position operator 5 to which the signal S4 is inputted to operate position information, and time information is operated by the operator. Position information from the operator 5 is compensated on a basis of this time information by a position compensating operator 11 and is applied to a speed command operator 7. Thus, position detection information synchronized with the certain reference period and the position command signal are outputted to perform stable control without the change of speed by the simple circuit. |
