FAN ARRANGEMENT IN WHICH THE CONSUMED ELECTRIC POWER IS INFLUENCED

摘要

Disclosed is a fan arrangement (20) comprising a fan (24) that is driven by an electric motor (22), a device for continuously detecting an actual electrical value associated with the electric motor (22) during operation, an input device for entering a desired electrical value for operating the electric motor, a comparator (26) for comparing said desired electrical value with the actual electrical value, and a regulator which regulates said electrical value by means of a pulse width modulation process (36).