Control system design using actuators with constraints on time and space resolutions

This paper discusses a design problem for a control system with constrains on the control input. Constrains are the limitation due to the special and time resolutions of actuators. These systems are called the discrete-valued input control (DIC) system. For the DIC system, at first, we propose the compensation method using the equivalent division for the amplitude of the control input. Next, considering the realization for the fixed-point operation, the 2n division method is proposed. The DIC methods are compared with the method using the feedback modulator. Finally, the effectiveness of the proposed DIC methods is verified by the vibration suppression and positioning experiments.