(57) Abstract: Laundry treating machine (100) comprising: a casing (103), a laundry drum (104) mounted inside the casing (103) to rotate about a rotation axis, an electric motor (2) designed to rotate the laundry drum (104), an inverter-based apparatus, which is configured to control the electric motor (2). The inverter-based apparatus comprises: an input stage (4) which is connected to mains lines (8) for receiving AC lines currents and AC mains voltage and configured to convert said alternating mains voltage AC to a rectified DC voltage, an electrolytic capacitor-less inverter (5) configured to generate output currents to be fed to the electric motor (2) based on duty cycles of switching signals, a DC-link (10) which connects the electrolytic capacitor-less inverter (5) to the input stage (4) and is crossed by DC-link currents from, or towards, the electrolytic capacitor-less inverter (5), a DC-link capacitor ( 11) connected to the DC-link (10), a regulator system (14) (214) which is configured to control the duty cycles of switching signals based on at least a [Continued on nextpage] (54) Title: LAUNDRY TREATING MACHINE AND METHOD FOR OPERATING A LAUNDRY TREATING MACHINE (51) International Patent Classification: H02M 1/32 (2007.01) D06F 37/30 (2006.01) H02M 5/458 (2006.01) H02P 23/30 (2016.01) H02P3/18 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: (30) Priority Data: 18185870.5 26 July 2018 (26.07.2018) EP (81) Designated States (unless otherwise indicated, for every kind of national protection av ailable) . AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (74) Agent: ELECTROLUX GROUP PATENTS; S t Gorans‹ gatan 143, 105 45 Stockholm (SE). (72) Inventors: MARSON, Enrico; Corso Lino Zanussi 24, 33080 Porcia (PN) (IT). PIN, Gilberto; Corso Lino Zanus‹ si 24, 33080 Porcia (PN) (IT). POSA, Paolo; Corso Lino Zanussi 24, 33080 Porcia (PN) (IT). DELLA SCHIAVA, Luca; Corso Lino Zanussi 24, 33080 Porcia (PN) (IT). (71) Applicant: ELECTROLUX APPLIANCES AKTIEBO- LAG [SE/SE]; S:t Gdransgatan 143, 105 45 Stockholm (SE). PCT/EP20 19/07003 1 25 July 2019 (25.07.2019) English English