公开(公告)号：EP3706509A1

公开(公告)日：2020-09-09

申请号：EP19160569.0

申请日：2019-03-04

申请人： ELECTROLUX APPLIANCES AKTIEBOLAG

发明人： ZANGOLI, Massimo ,  NOSTRO, Massimo ,  VIROLI, Alex ,  ROSSI, Andrea ,  VALENTINI, Enrico ,  URGESE, Emanuel

IPC分类号： H05B6/06

摘要： The invention relates to a power supply circuit (1, 2) for a cooking device, in particular for an induction cooking device, more particularly for an induction hob (80),
wherein the power supply circuit is comprising
- a, in particular a single, frequency adapting unit (20), in particular filtering unit, for adapting at least one external supply signal (11, 12) into a single or at least one internal AC supply signal (15, 16; 17, 18),
- and at least one, at least two, two, at least three or three DC signal generating units (25, 30, 35), each for converting the one or at least one internal AC supply signal (15, 16; 17, 18) into at least one signal component, in particular one or two signal components, of an internal DC supply signal (40, 41, 42, 43, 44; 45, 46) and
- at least one, at least two, in particular two, at least three, three, at least four or four, heating frequency generating units (50, 55), each for converting one or at least one DC supply signal (40, 41; 42, 43; 44, 46; 45, 46) supplied by at least one DC signal generating unit (25, 30, 35) into a heating frequency signal (61, 62, 63, 64) for supplying at least one heating unit (70, 75) with electrical power.