Domestic electrical appliance including an electric motor

Electricity: motive power systems – Alternating current commutating motors

Reexamination Certificate

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Details

C318S245000, C310S158000

Reexamination Certificate

active

07034477

ABSTRACT:
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, including a capacitor 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, connected on the one hand, to a first terminal of a motor winding, and on the other hand, alternately to the DC voltage source and to the first terminal of the motor rotor;a second switch, connected on the one hand, to the second terminal of said motor winding, and on the other hand, alternately to one or to the other of the terminals of the motor rotor.

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