| 摘要 |
PURPOSE:To obtain a servo driver which is simple in its regulation, has less number of signal lines and is strong against a noise by directly inputting a PWM pulse to a servo controller to calculate it, thereby directly driving a bridge. CONSTITUTION:A current detected by a current detector 1 is converted by a PWM converter 10 into a PWM pulse responsive to the amplitude and a direction pulse (a code pulse). A servo controller 11 which inputs a PWM command pulse and a code pulse from a host controller, and a feedback PWM pulse and a code pulse by the converter 10 converts the PWM pulse to parallel digital amounts to perform a servo calculation. It works the result to the gate signal of an FET bridge 12. |
