Abstract: An induction hot plate including a plurality of heating regions with a reconfigurable structure. The hot plate includes at least two power modules, each supplying electrical power to at least one first and one second induction heating element. The maximum power to each of the regions can be increased by supplying electrical power from both power modules to only the first or the second induction heating element.

Abstract: A household electrical appliance for a.c. operation includes a synchronous motor, a dropping resistor, and a device for inserting the dropping resistor. The synchronous motor is rated at a first frequency. The device inserts the dropping resistor in series with the synchronous motor for operating the synchronous motor at a second frequency.

Abstract: A transmitter housing for connecting a water level transmitter to a lye runoff bellows in a washing machine, the transmitter housing having an elongated and cylindrical shape and being connected at a basal end face thereof to a corresponding nozzle of a lye runoff bellows of a tub of the washing machine and being connected by the other basal end face thereof to the water level transmitter, includes a transmitter housing body having one of a jet molded and an injection molded generally hollow-cylindrical shape and includes devices for fastening the transmitter housing body to the nozzle of the lye runoff bellows, and devices for connecting the transmitter housing body to a body of the tub.

Abstract: An inverter bridge of MOS technology transistors applies a series of high frequency power pulses to a disc coil in an electrically-heating of a cooker plate in order to heat a ferromagnetic container on the plate. The transistorized inverter bridge is activated by a control circuit which adjusts the triggering moment of each leg of the transistor bridge to the inductive recovery times of the disc coil and inhibits the functioning thereof in the absence of ferromagnetic load, i.e. container, on the plate. In this manner, the plate is self-igniting when a ferromagnetic container is placed thereon, thereby substantially reducing the electric power consumed in use. The control circuit for activating the transistor bridge is advantageously incorporated in a single integrated circuit in order to reduce maximumly the wiring and cost of assembly.