| 摘要 |
PURPOSE:To improve apparent response characteristics, by holding the control output so that the control output changing range of a control system low in frequency response can be the preset range. CONSTITUTION:The control generating circuit 2 is provided with the feedback 7 having the characteristics as shown in (a), to constitute the control signal generating circuit 2'. Further, the power amplifying circuit 4 is provided with the amplifier 8 having the characteristics as shown in (b), to constitute the power amplifier 4'. In this case, when a command using the circuit 4 with saturation characteristics is made from the aimed value 1, the output of the circuit 2' outputs the control signal proportional to the input corresponding to the difference between the aimed value 1 and the output of the preset circuit 4 in the range controlling unsaturated characteristics, but if it is slightly higher than the input signal of the circuit 4 being in saturation, it is held not to increase the control output any more. Thus, even if the circuit 4 changes from the saturation to nonsaturation state, response can be made. |
