TY - JOUR
AU - Itoh, S.
AB -  N. M A T S U I a o d Y . ADACHI Nagoya Institute of Technology S . ITOH Nippon Denso Co. 1 . Introduction T i . Assuming that damping coefficient D is negligibly small (31, we obtain the following equations: V Ri+ Ldildt + K O : J d old t =T -Ti With the development of numerical control for machine tools, the demand for a positioning device has been increasing annually. Usually, the positioning device is driven by either a servomotor o r pulse motor. The servomotor requires rather complicated feedback circuits and its torque becomes small as the controlled variable approaches its target value. Despite the advantage of no feedback circuit being required, the electric pulse motor has such disadvantages as its torque being generally very weak and that the oil-pressure pulse motor requires an oil-pressure tank 11, 2 I. In this paper, we attempt to solve the above difficulties by using a dc servomotor with large current capacity and small mechanical time constant. The servomotor is driven as a conventional servomotor until it reaches the neighborhood of a target. A f t e r it has been stopped in the neighborhood of 
TI - A step drive of DC servomotor and its characteristics
JF - Electrical Engineering in Japan
DO - 10.1002/eej.4390940207
DA - 1974-01-01
UR - https://www.deepdyve.com/lp/wiley/a-step-drive-of-dc-servomotor-and-its-characteristics-gxgqiaOebc
SP - 45
EP - 51
VL - 94
IS - 2
DP - DeepDyve
ER -