| 摘要 |
PURPOSE:To provide not only positioning control but speed control along with shorter finite settling time in regard to a speed controller for a DC servo motor and so on. CONSTITUTION:An integration device 3 integrates a difference between an input signal and a target value generated inside as a step input. The input signal is obtained by detecting the number of revolutions of a controlled motor in a first-order-lag or high-order-servo system. A bang-bang device 1 is used for generating a step signal D at a given level with a directional polarity that invalidates the step input when the difference is zero and for adding the step signal D to an integrated output generated from the integration device 3. The integration device 3 and the bang-bang device 1 constitute a PI compensator provided at a circuit stage prior to the controlled motor. |
