公开(公告)号：US20220248505A1

公开(公告)日：2022-08-04

申请号：US17625926

申请日：2020-07-15

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Chunlong XU ,  Alex VIROLI ,  Massimo NOSTRO ,  Massimo ZANGOLI

IPC: H05B6/06 ,  H05B6/12

Abstract: The invention relates to a method for controlling the provision of electric power to an inductive element, in particular an induction coil (L), of an induction cooking appliance (1), the induction cooking appliance (1) comprising a circuitry (10) with an input (11), at least one switching element (S) for providing pulsed electric power to the inductive element, in particular the induction coil (L) and a capacitive element, in particular a capacitor (C) being connected in parallel, in particular in series, to the switching element (S), the method comprising the steps of: —receiving rectified AC-voltage (Vin) at the input (11) of the circuitry (10); —discharging, in particular during a first section/phase (P1), the capacitive element, in particular the capacitor (C) in order to reduce the voltage provided to the switching element (S), in particular during a first period of rectified AC-voltage (Vin); —after at least partially discharging the capacitive element, in particular the capacitor (C), starting, in particular as a second section/phase (P2), a switching operation of the switching element (S), in particular during a second period of rectified AC-voltage (Vin); —stopping the switching operation after a switching operation time, in particular during the second period of rectified AC-voltage (Vin); —iterating the steps of discharging of capacitor (C), starting of switching operation and stopping of switching operation, in particular immediately subsequently, in subsequent periods of rectified AC-voltage (Vin).

公开(公告)号：US20210267021A1

公开(公告)日：2021-08-26

申请号：US17256709

申请日：2019-07-19

Applicant: ELECTROLUX APPLIANCES AKTIEBOLAG

Inventor： Laurent JEANNETEAU ,  Alex VIROLI ,  Filippo MILANESI ,  Andrea ROSSI ,  Chunlong XU ,  Adriano SCOTTO D'APOLLONIA ,  Claudio PAOLINI

IPC: H05B6/06 ,  H05B6/12

Abstract: An induction hob comprising a plurality of induction coils (12, 14, 16, 18); drive circuitry (22, 24) for powering the induction coils; a user interface (26) connected with the drive circuitry; and a housing which supports the induction coils, the drive circuitry and the user interface; and characterized in that the housing comprises a bottom part (10) made of molded plastic comprising mounting means for the mounting of the induction coils (14, 16, 18, 20), the drive circuitry (22, 24) and the user interface (26).