Abstract: A cooking appliance includes a cooktop having a cooking zone with at least one heating element beneath the cooktop in the cooking zone, a temperature sensor that detects the temperature of the cooking zone, and a controller. The controller executes a temperature-protect mode upon receiving an indication of a presence of a temperature-sensitive component on the surface of the cooktop by adjusting power supplied to the heating element in response to a detected temperature of the cooking zone approaching, meeting or exceeding a threshold temperature in order to ensure that the detected temperature does not exceed the threshold temperature beyond a predetermined degree and/or for a predetermined period of time. The threshold temperature is predetermined to be one that will not damage the temperature-sensitive component.

Abstract: Systems and methods are provided for an induction cooking hob. The induction cooking hob includes at least three induction coils each comprising a first shape. The induction cooking hob includes a fourth induction coil arranged lateral to the three induction coils. The fourth induction coil includes a second shape. The induction cooking hob includes one or more generators. The induction cooking hob includes a control unit that is configured to control the one or more generators to supply power to the at least three induction coils and the fourth induction coil.

Abstract: An induction hob including at least one switching element and at least one induction coil is provided. The switching element provides an alternating current flow through the induction coil. Cooling means provide airflow through the induction hob for cooling the switching element and the induction coil. The induction coil is arranged at a first side of a first plate-shaped support element and the switching element is arranged at a first side of a second plate-shaped support element. The first support element and the second support element are connected to one another and are arranged at a distance in order to form an air channel therebetween. The cooling means are arranged such that airflow is provided through the air channel.

Abstract: The invention relates to an induction hob comprising at least one switching element and at least one induction coil (3), the switching element providing an alternating current flow through said induction coil (3) and cooling means (4) providing an airflow through the induction hob for cooling said switching element and said induction coil (3). The induction coil (3) is arranged at a first side (5.1) of a first plate-shaped support element (5) and the switching element is arranged at a first side (6.1) of a second plate-shaped support element (6), wherein the first support element (5) and the second support element (6) are connected to one another and arranged at a distance (d) in order to form an air channel (7) between the first and second support element (5, 6) and wherein the cooling means (4) are arranged such that an airflow is provided through said air channel (7).

Abstract: A switching power supply that can operate in critical conduction mode as self-oscillating power supply (SOP) during moderate load, and in discontinuous conduction mode (DCM) under the control of a pulse-width modulated signal under small load, whereby the power consumption of the supply is decreases continuously as the load is decreased. A frequency modulated self-oscillating switching power supply (FMSOP) having a power switch, the switch being held OFF, after a zero-current detector detects that an output current falls to zero, until allowed to turn ON after a pulse having a load-modulated width that corresponds to the load. The FMSOP operates with a switch controller that may include a flip-flop to latch the detector's signal, a load-modulated pulse generator, and a combinatorial logic gate to combine the pulse and the latched signal.

Abstract: A switching power supply that can operate in critical conduction mode as self-oscillating power supply (SOP) during moderate load, and in discontinuous conduction mode (DCM) under the control of a pulse-width modulated signal under small load, whereby the power consumption of the supply is decreases continuously as the load is decreased. A frequency modulated self-oscillating switching power supply (FMSOP) having a power switch, the switch being held OFF, after a zero-current detector detects that an output current falls to zero, until allowed to turn ON after a pulse having a load-modulated width that corresponds to the load. The FMSOP operates with a switch controller that may include a flip-flop to latch the detector's signal, a load-modulated pulse generator, and a combinatorial logic gate to combine the pulse and the latched signal.