METHOD AND DEVICE FOR CONTROLLING A POWER OUTPUT STAGE

摘要

The invention relates to a power output stage (T) which is charged with a hi gh charging current (Ig1) in order to effect an electromagnetic interference- compatible control. The power output stage is charged until the drain curren t (Id) exceeds a current threshold value (Is), is subsequently charged with a lower charging current (Ig2), said lower charging current being associated with the desired slew rate, until the drain voltage (Vd) falls below a predetermined voltage threshold value (Vs), and, afterwards, is subjected to a continual charging with the high charging current(Ig1) for a predetermined duration (Tv). To effect a closing control, the operation is carried out in an almost reversed sequence.