Abstract: An induction cooking hob with a pot detection device. The hob includes a cooking surface having cooking areas and/or cooking zones. The hob includes a user interface having a switch element and a display. The hob includes a control unit for controlling the cooking area(s) and/or the cooking zone(s). The pot detection device checks, if a cooking vessel is placed on the cooking area(s) and/or cooking zone(s). The control unit switches off the cooking area(s) and/or cooking zone(s), if the pot detection device has identified that the cooking vessel has been removed from the cooking area(s) and/or the cooking zone(s). The control unit stores a cooking mode of the cooking area(s) and/or cooking zone(s), which have been switched off. The display indicates that the cooking area(s) and/or cooking zone(s) have been switched off. The switch element restarts the cooking area(s) and/or cooking zone(s) in the same cooking mode.

Abstract: An electrical device adapted to be placed on an induction hob including a first portion having a receiving coil adapted to receive electric power from a transmission coil of the induction hob. A second portion includes at least one electrical load, the electric load being electrically coupled with the receiving coil. A shielding portion is located at least partially between the first portion and the second portion, the shielding portion being adapted to protect the second portion against electromagnetic radiation transmitted by the transmission coil.

Abstract: A method for controlling an induction heating cooking apparatus, comprises the steps of a) transforming a supply current (Iin) having a base frequency, for example 50 Hz or 60 Hz, into an induction current (Iw) having a higher frequency than the base frequency of the supply current, b) feeding the induction current into at least one inductor of the induction heating cooking apparatus to generate a magnetic induction field, c) detecting a deviation or distortion of the actual shape or frequency spectrum of the supply current or a rectified supply current from a predetermined admissible shape or frequency spectrum lying outside of a pre-given tolerance range, d) adapting the induction current or the electrical power associated with the induction current until the detected deviation or distortion of the actual shape or frequency spectrum of the supply current or a rectified supply current from the predetermined shape or frequency spectrum lies within the pre-given tolerance range again.

Abstract: The present application in particular is directed to an induction coil assembly 2 adapted for an electric induction hob of a household or industrial type appliance. The induction coil assembly 2 comprises at least one induction coil 5 which has at least one of ovoid and coiled ovoid windings 6.

Abstract: A hob and methods for operating such a hob. The hob includes a cooking surface adapted to receive a number of pots. A user interface allows a user to select and adjust at least one parameter of a cooking zone associated to a pot while indicating the number of pots on the selected cooking zone and a pot detection unit to detect the presence and non-presence of pots on the cooking surface. The hob further includes a control unit that cooperates with the pot detection unit and the user interface to control the function of commands received through the user interface. The control unit can cause a selection of a certain cooking zone and provide a corresponding indication that the certain cooking zone is from now on selected, if temporal interruption of a presence of a pot on the certain cooking zone was detected.

Abstract: An induction cooker hob which includes a cooking plate configured for placing cookware to be heated on an upper side thereof. At least one induction heating element is attached to an averted lower side of the cooking plate. The hob further includes a self-contained electronics housing accommodating therein essentially all electronic components required for operating and powering the at least one induction heating element.

Abstract: An induction cooking hob and method for assigning induction coils of the hob, so that each coil corresponds with a unique number or identity. The method includes; setting a load onto the hob, so that the load covers only one of the coils, which is provided for a first unique number or first identity; activating a pot detection device for all coils of hob; identifying the coil covered by the load; assigning the first number or identity to the covered coil; storing the unique number or identity in conjunction with the covered induction coil; setting the load onto a further one of the coils, which is provided for a second unique number or second identity; repeating the steps c) to f) for the further coil and second number or identity; and repeating the steps b) to f) for all other coils and corresponding unique numbers or corresponding identities.

Abstract: A method of detecting cookware (3) on an induction hob (1) including a plurality of induction heating coils (2) each being adapted for heating, in the activated state, cookware (3) placed on the induction hob (1). With the method, detecting cookware (3) is based on signals generated by at least one active induction heating coil (4) through the action of parasitic electromagnetic coupling effects in at least one inactive induction heating coil (6).

Abstract: An induction hob including in a stacked arrangement a coil carrier plate (2), an induction coil (3) and a cooktop plate (4). The induction coil (3) is supported on the coil carrier plate (2) by at least one elastic, in particular resilient, support element (5) which is made from an electrically insulating material. The support element (5) is implemented to generate an elastic force (F) urging the induction coil (3) towards the cooktop plate (4) at least in the ordinary working arrangement of the induction hob (1).

Abstract: A cooking hob includes a transparent or semi-transparent top panel and a cooking zone with a pot detector. A user interface is below the top panel and includes touch switches and a touch slide. A light source corresponds with the touch switch and the cooking zone. The light source indicates detection of a pot on the cooking zone by a first light signal during a predetermined time interval and indicates an activated state of the cooking zone by a second light signal and indicates the selected cooking zone and the activated state of the touch slide element by the first light signal. The touch slide is for adjusting the power and/or temperature of the indicated cooking zone within the time interval. The touch switch is for selecting the cooking zone and activating the touch slide. The touch slide is for adjusting the power and/or temperature of the selected cooking zone.

Abstract: A method for controlling a cooking process on an induction cooking hob (10). The method includes setting a temperature value or parameter value corresponding with the temperature by a user. A control unit of the induction cooking hob (10) sets a maximum power (Pmax) for a corresponding cooking zone, calculates an average slope value (S1, S2, ASP) of a temperature-time-diagram (20, 22, 24) of the cooking process, compares the average slope value (S1, S2, ASP) with a corresponding threshold value (THR1, THR2, THR3), and indicates that the temperature or parameter has obtained the set temperature value or parameter value, respectively, if the average slope value (S1, S2, ASP) is equal with or smaller than the corresponding threshold value (THR1, THR2, THR3). The method and control unit are provided for controlling a boiling process and a frying process on an induction cooking hob.

Abstract: A modular electronic and/or electric apparatus including a plurality of circuit units connected by an internal communication bus. The circuit unit includes at least two serial resistor elements forming a voltage divider. The resistor elements of the circuit units are serially connected and form an ID wire. The ID wire is interconnected between a first voltage terminal and a second voltage terminal. The circuit unit comprises at least one analogue-digital converter. A connection point between two resistor elements of one circuit unit is connected to an analogue input terminal of the analogue-digital converter. A digital output terminal of the analogue-digital converter is connected to the internal communication bus. The modular electronic and/or electric apparatus includes a master unit connected to the internal communication bus. In particular, the present invention relates to a modular domestic appliance including a plurality of circuit units connected by an internal communication bus.

Abstract: A method for controlling a cooking hob with one or more induction coils covered by a cookware and forming a cooking zone. All induction coils of the cooking zone are alternately activated. The method includes setting an average power to be transferred to the cookware by a user, determining a frequency, estimating a maximum average power if all induction coils of the cooking zone would be activated with said frequency, estimating a percentage power defined as quotient between the set average power and the estimated maximum average power, estimating a calculated number of coils defined as product of the number of coils within the cooking zone and the percentage power, defining a minimum number of simultaneously activated coils within the cooking zone by an integer value of the calculated number, and defining a temporal activation of a further one of the coils by a fractional part of the calculated number.

Abstract: The present invention relates to an induction heating generator. The induction heating generator comprises or corresponds with a rectifier circuit (10). An input of the rectifier circuit (10) is connected or connectable to an AC power terminal (12). Four capacitors (C1, C2, C3, C4) form a bridge circuit between two output terminals of the rectifier circuit (10). The bridge circuit includes a first capacitor series (C1, C2) and a second capacitor series (C3, C4). An induction coil (L) is interconnected in the centre of the bridge circuit. At least two semiconductor switches (S1, S2) are connected in each case parallel to one of the capacitors (C1, C2) of at least the first capacitor series (C1, C2). The induction heating generator comprises a control circuit block (14, 16, 18, 20, 22) for controlling the control electrodes of the semiconductor switches (S1, S2).

Abstract: The present invention relates to a method for controlling an induction cooking hob (10) with a pot detection system and a user interface (14; 16). The method comprises the steps of activating the induction cooking hob (10) by touching a main switch (20) by a user; starting automatically the pot detection system by a control unit of the induction cooking hob (10); and detecting at least one pot (18) and/or pan (18) on a cooking surface (12) of the cooking hob (10) or detecting, if no pot (18) or pan (18) is placed on said cooking surface (12), by the pot detection system.

Abstract: The present invention relates to a half bridge induction heating generator, comprising at least one power terminal (10) provided for a direct current voltage, at least one ground terminal (12), and four capacitors (C2, C3, C4, C5) forming a bridge circuit between the power terminal (10) and the ground terminal (12). The induction heating generator comprises further an induction coil (L) interconnected in the centre of said bridge circuit, two semiconductor switches (Q1, Q2) connected in each case parallel to one of the both capacitors (C4, C5) on one side of the bridge circuit, and a further capacitor (CI) interconnected between the power terminal (10) and the ground terminal (12).

Abstract: A method for dynamic wave form correction includes providing an input power signal by an AC power source and rectifying the input power signal by a frequency converter into a half waves signal whose half wave is delimited by two subsequent zero-crossings. The time lag between the two zero-crossings defines a half wave duration. The frequency converter converts the half waves signal into a working current signal for supplying an induction heating device. In a frequency shifting operation, the frequency of the working signal is first increased from a first base frequency to a maximum frequency, and is then decreased to a second base frequency different from the first base frequency within a time period smaller than the half wave duration. A zero crossing of the half wave signal is passed within the frequency shifting operation. An arrangement for dynamic wave form correction of a power supply is also provided.

Abstract: The present invention relates to an induction cooking hob (10) with a plurality of induction coils (16). The induction cooking hob (10) comprises a cooking surface (12) and a control unit. The cooking surface (12) includes a cover plate. The induction coils (16) are arranged side-by-side according to a predetermined scheme and below the cover plate. At least one induction coil (16) is marked by an identification symbol (18). The identification symbol (18) includes a first element (20) and a second element (22), wherein the first element (20) extends beyond the diameter of the corresponding induction coil (16) and the second element (22) marks the diameter of said induction coil (16).

Abstract: The invention relates to an interaction device (1), comprising a) a first input unit (20) with a first sensitive surface, especially a touch display, and a first sensor unit, b) a second input unit (2-12) with a second sensitive surface and a second sensor unit, c) wherein the second input unit (2-12) is used for protection of the first input unit (20), especially against overheating and/or mechanical damaging. Furthermore, the invention relates to a glass ceramic hob (22), especially induction cooking hob, with an interaction device (1) according to the invention a) wherein preferably the interaction device (1) is arranged in a side and/or edge area of the glass ceramic hob and/or arranged at the lower surface of the glass ceramic hob (22) and/or b) wherein preferably the glass ceramic hob comprises a fan for ventilation.

Abstract: The present invention relates to an electric and/or electronic circuit including a printed circuit board (20), at least one separate circuit board (10) and at least one power connector (12) for said printed circuit board (20). The at least one power connector (12) is connected or connectable to a corresponding counterpart. A number of electric and/or electronic components (22) is sold at the separate circuit board (10). The at least one separate circuit board (10) is connected to the printed circuit board (20) by a number of solder joints (16). The solder joints (16) are connected to the separate circuit board (10) by a through-hole-technology. The solder joints (16) are connected to the printed circuit board (20) by SMD (surface mount device) technology. At least one power connector (12) is fastened at the separate circuit board (10) by the through-hole-technology.