| 摘要 |
A programmed data processor (64) is used which reads out the current consumption, the rotation speed and the rotation direction of the motor (12) at predetermined points in time and, from this, calculates the triggering angle for the rectifier (94) in a rectifier bridge. Furthermore, logic circuits (72, 84) are used which contain counters, record the value calculated by the processor for the triggering angle and from which this value is read out by a clock transmitter (60), which is controlled by the supply-voltage source, and a triggering pulse is produced. At the same time as each triggering pulse, a program request signal for the data processor is produced, which causes the latter to calculate the triggering angle for the next rectifier to be triggered. <IMAGE> |
