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1. (WO2014206719) ELECTRIC HOUSEHOLD APPLIANCE WITH AN ELECTRONIC CONTROL DEVICE FOR CONTROLLING AN UNIVERSAL ELECTRIC MOTOR

Pub. No.:    WO/2014/206719    International Application No.:    PCT/EP2014/062022
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Wed Jun 11 01:59:59 CEST 2014
IPC: H02P 1/20
H02P 7/29
H02P 23/00
Applicants: ELECTROLUX APPLIANCES AKTIEBOLAG
Inventors: MAGUOLO, Costantino
LAZZARIN, Alberto
Title: ELECTRIC HOUSEHOLD APPLIANCE WITH AN ELECTRONIC CONTROL DEVICE FOR CONTROLLING AN UNIVERSAL ELECTRIC MOTOR
Abstract:
An electric household appliance (1), particularly a laundry treating machine, comprising an universal electric motor (6) provided with a first stator winding portion (19) having a first terminal connectable to a voltage source and a second terminal which is connected to a second stator winding portion (20). The household appliance (1) further comprising electronic control means (11) which comprise a chopper regulating circuit (13) which is configured to chopper-regulate the current (I) supplied to the motor (6) based on a first value indicating the required rotor speed (ωr), and a filtering circuit (14) comprising a least one capacitor (25) and an power factor corrector inductor (18) being said first stator winding portion (19). The electronic control means (11) are further configured to selectively connect said capacitor (15) to said first or said second terminal of said first stator winding portion (19).