Suppressing current peaks during commutation of brushless DC motor

摘要

A current actual value determination takes place exclusively in the DC intermediate circuit of the converter. The current build-up compared to the current redn. is delayed about a time span (tv). The current redn. is introduced with the arrival of a commutation signal of a rotor position transmitter and the current build up is delayed for the time span (tv). The current redn. before the arrival of a commutation signal of a rotor position transmitter (6) is introduced and the current build up is delayed for the time span (tv).