INDUCTION HOB AND METHOD FOR OPERATING AN INDUCTION HOB

摘要

The invention relates to an induction hob comprising at least two induction heaters (2, 3), each induction heater (2, 3) associated with at least one induction coil (4, 5), wherein a first induction heater (2) is associated with a first type of electronic driving means (6) comprising a first induction coil (4) and being adapted for driving an AC current through said first induction coil (4) of the first induction heater (2), wherein the second induction heater (3) is associated with a second type of electronic driving means (7) comprising a second induction coil (5) and being adapted for driving an AC current through said second induction coil (5) of the second induction heater (3) and wherein the electronic driving means (6, 7) are adapted to control the output power of the induction heaters (2, 3) by varying the frequency of the AC current through the respective induction coil (4, 5). Each electronic driving means (6, 7) is adapted to cause a constant electric power flow through the induction coil (4, 5) and the electronic driving means of the first and second type have different resonance frequencies such that the resonance frequency of the first type of electronic driving means (6) is at least 1.4 times higher than the resonance frequency of the second type of electronic driving means (7).

主权项

1. Induction hob comprising at least two induction heaters, each induction heater associated with at least one induction coil, wherein a first induction heater is associated with a first type of electronic driving means comprising a first induction coil and being adapted for driving an AC current through said first induction coil of the first induction heater, wherein the second induction heater is associated with a second type of electronic driving means comprising a second induction coil and being adapted for driving an AC current through said second induction coil of the second induction heater and wherein the electronic driving means are adapted to control the output power of the induction heaters by varying the frequency of the AC current through the respective induction coil, characterized in that,
each electronic driving means is adapted to cause a constant electric power flow through the induction coil and the electronic driving means of the first and second type have different resonance frequencies such that the resonance frequency of the first type of electronic driving means is at least 1.4 times higher than the resonance frequency of the second type of electronic driving means.