| 摘要 |
An arrangement is proposed, such as is applied, for example in space travel and in military devices, for the drive, as a function of setting direction and travel, of a controlling element (7) of an actuator arranged in the cross branch of a bridge circuit (3, 5, 7, 8, 10) consisting of four switching elements (3, 5, 8, 10). In this arrangement, one switching element pair (3, 8 or 5, 10) is selected as a function of the sign of a control signal and one switching element (3 or 5) of this switching element pair (3, 8 or 5, 10) switches through. The other switching element (8 or 10) of the switching element pair (3, 8 or 5, 10) is loaded with pulses during this time, at least at times. The controlling element (7) of the control element is supplied by this means with a pulse-width modulated current. <IMAGE> |
