Actuation device for electrical appliance

Details Actuation device for electrical appliance Actuation device for electrical appliance

H - Electricity

03

K

309/7, 341/91

H03K 17/97 (2006.01)

Patent

CA 1323411

05231 Abstract of the Disclosure The invention is directed to an actuation device for an electrical appliance, in particular for small electri- cal appliances such as tooth-brushes, oral jet devices, hair dryers, curling irons, shavers and food processors, for the open- or closed-loop control of at least one operating quantity, including a primary detector for generating controlled variables and a circuit arrange- ment. The actuation device is characterized in that the primary detector includes a movable element which is arranged at the electrical appliance and produces mag- netic or electric fields of varying field strengths in dependence on its position, and further includes an ele- ment fixedly disposed on the electrical appliance and sensitive to magnetic or electric fields. The field-sen- sitive element produces an output quantity which is a measure of the field strength at the site of the field- sensitive element, the output quantity is deliverable to the circuit arrangement, and the circuit arrangement in- corporates at least one control function which in turn operates on the operating quantity of the electrical appliance. (FIG. 2) 25 Feb 88/BH.

562621

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