| 摘要 |
<p>A servo control circuit, which is employed to drive a servo motor at a commanded speed and torque, is provided with a servo motor voltage supply circuit, a servo motor drive current detection circuit, a servo motor revolution detector, a counter which counts revolution detection pulses therefrom, a processor which controls a current loop in accordance with an external torque command input, and also controls the output voltage of the voltage supply circuit, and a main processor which outputs the torque command. It is possible to omit the counter which is conventionally employed for inputting positional data, since the number of pulses generated during a period T1 for the current loop control is counted and utilized as positional data during a period T2 for the main processor. Therefore, the servo control circuit is advantageous from the viewpoints of both construction and economy, and is applicable to the control of various kinds of DC or AC servo motor. </p> |
