| 摘要 |
The invention relates to a method for controlling a brushless electric motor comprising a plurality of winding branches (21,22,23) and a circuit arrangement (1) suitable therefor. The temporal progression of the clamping potential (Uu, Uv, Uw) is produced respectively by clocked switches between a low and a high electric potential. At least one of the clamping potentials (Uu, Uv, Uw) is constantly produced in time segments in a variation free manner by switches on one of the electric potentials, and the additional clamping potentials (Uu, Uv, Uw) are produced by modifying the clocking. According to the invention, in the temporal progression, the clamping potentials (Uu, Uv, Uw) are constantly produced in an alternating manner in accordance with the variable of the respectively associated clamping flow. As a result, switching losses are reduced. |
