A NEW MODE SWITCHING CONTROL FOR FAST SETTLING AND HIGH PRECISION POSITIONING

摘要

We proposed in this paper a new MSC algorithm to achieve both the fast point-to-point motion and precise positioning after settling. Combination of the PTOS and the TDC enables smooth mode switching without any compensation of initial value. Since the TDC calculates control input using previous one of the PTOS at the instance of mode switching. The experimental results show that proposed MSC has a significant improvement in settling time and precise positioning. The proposed MSC is simple to design and can be easily applied to other servomechanism like hard disk drives that requires both the fast settling and high precision positioning.