Abstract: An electromagnetic cooking device includes an enclosed cavity; a set of radio frequency feeds configured to introduce electromagnetic radiation into the enclosed cavity to heat up and prepare food; a set of high-power radio frequency amplifiers coupled to the set of radio frequency feeds, each high-power amplifier comprising at least one amplifying stage configured to output a signal that is amplified in power with respect to an input radio frequency signal; a signal generator coupled to the set of high-power radio frequency amplifiers for generating the input radio frequency signal, and a controller. The controller can be configured to, among other things, cause the signal generator and selected ones of the set of high-power amplifiers to output a radio frequency signal, select from a set of phase values of radio frequency electromagnetic waves, and identify the resonant modes excited within the enclosed cavity.

Abstract: An electromagnetic cooking device includes an enclosed cavity; a set of radio frequency feeds configured to introduce electromagnetic radiation into the enclosed cavity to heat up and prepare food; a set of high-power radio frequency amplifiers coupled to the set of radio frequency feeds, each high-power amplifier comprising at least one amplifying stage configured to output a signal that is amplified in power with respect to an input radio frequency signal; a signal generator coupled to the set of high-power radio frequency amplifiers for generating the input radio frequency signal, and a controller. The controller can be configured to, among other things, cause the signal generator and selected ones of the set of high-power amplifiers to output a radio frequency signal, select from a set of phase values of radio frequency electromagnetic waves, and identify the resonant modes excited within the enclosed cavity.

Abstract: A pyrolytic self-cleaning oven having a catalytic composition positioned in the oven cavity or exhaust gas passage in order to complete the combustion and/or the oxidation of gases produced by a process carried out inside the oven. The catalytic composition is supported by a ceramic coating on a metal wire. The metal wire is electrically connected to a control system of the oven for controlling the cooking and/or pyrolytic cleaning process. The catalytic composition carried on the metal wire may be part of a net-shaped catalytic element.

Abstract: A pyrolytic self-cleaning oven having a catalytic composition positioned in the oven cavity or exhaust gas passage in order to complete the combustion and/or the oxidation of gases produced by a process carried out inside the oven. The catalytic composition is supported by a ceramic coating on a metal wire. The metal wire is electrically connected to a control system of the oven for controlling the cooking and/or pyrolytic cleaning process. The catalytic composition carried on the metal wire may be part of a net-shaped catalytic element.

Abstract: A device for controlling a physical quantity set by a user, such as temperature or humidity, in a household electrical appliance such as an oven, a refrigerator or a washing-drying machine comprises, for measuring this physical quantity, at least one member operationally connected to control means for this quantity which operate on means for regulating this quantity, such as at least one electrical heating resistance element, a compressor of a refrigeration circuit or the like. The measuring member is connected to means for generating a square wave electrical signal the period of which is proportional to the value of the measured physical quantity, said electrical signal being evaluated by the control means which, on the basis of its frequency, determine a final value for said signal.

Abstract: A ventilation system for electrical food-cooking appliances comprising a cooking hob and an oven with a fan positioned in a compartment between the two in order to generate air flow for cooling electronic components controlling the oven operation, in which the fan is of variable speed, its speed being gauged on the basis of the appliance use.

Abstract: A device for controlling the operation of a household electrical appliance such as a washing machine, dish-washer, cooking hob, oven or the like including an electronic circuit arranged to control the operation of the electrical appliance in accordance with predetermined program steps selected via a selector. This selector is a knob connected to a position sensing element associated with the electronic circuit and arranged to generate an electrical signal (V.sub.A) on the basis of the angular position of the knob relative to an initial position or zero point. The electrical signal (V.sub.A) is used by the electronic circuit in known manner to execute a predetermine wash program or the like or to control the operation of the electrical appliance. The electronic circuit further controls an actuator for moving the knob, so that the knob is made to move during the execution of the selected operating program and hence display the progress of the program.