Motor arrangement with a motor fed by a servo amplifier

摘要

Between a servo amplifier (10) and a motor (16) fed by it, a switching stage (24) for pulse-width modulation with adjustable pulse width is inserted. As a result, it is not necessary to provide any type of step-down transmission (18), or only a single type of step-down transmission (18) needs to be provided for all applications. The ratio of the speed of the adjusting movement and the output voltage of the servo amplifier (10) is selectable. Furthermore, an advantageous circuit for the switching stage (24) is specified. <IMAGE>