Patent ID: 7034477
Filing Date: 2006-04-25
Classification: H02P

Abstract:
1. A domestic electrical appliance, including a universal electric motor, powered by direct current via an electrical circuit linked to a DC electrical voltage source, said circuit including a chopper arrangement, said arrangement including a capacitor connected in parallel with the DC voltage source, and one or more solid-state switches, wherein the circuit also includes two controllable switches, for automatically reconfiguring said circuit: a first switch of said controllable switches being connected on the one hand to a first terminal of a motor winding of said motor, and on the other hand, alternately to the DC voltage source and to a first terminal of a motor rotor of said motor; a second switch of said controllable switches being connected on the one hand to a second terminal of said motor winding, and on the other hand, alternately to said first terminal or an other terminal of the motor rotor, and wherein said chopper arrangement is connected between said first switch and said second switch.