Touch switch with integral control circuit

H - Electricity – 03 – K

Patent

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Details

H03K 17/96 (2006.01) A47B 57/00 (2006.01) A47B 96/02 (2006.01) A47F 3/06 (2006.01) A47F 5/00 (2006.01) G09F 3/20 (2006.01) G09F 9/30 (2006.01) F25D 25/02 (2006.01)

Patent

CA 2467902

A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad, an electric field generated about the touch pad and also having a preferably integrated and local control circuit connected to the touch pad and to a controlled device. The touch switch apparatus also having at least one of an input circuit portion for providing input signals to a decision circuit, swamping capacitance, active blocking devices, peak detector circuits, and a dual connection output latch circuit portion.

L'invention concerne un dispositif d'interrupteur tactile servant à détecter la présence d'un élément tel qu'une partie du corps humain. Ce dispositif comporte un bouton tactile, un champ électrique produit autour de ce bouton, et de préférence un circuit de commande intégré local connecté au bouton et à un système commandé. Le dispositif d'interrupteur tactile comporte aussi au moins une partie circuit d'entrée pour fournir des signaux d'entrée à un circuit de décision, une capacité à coefficient de température négligeable, des dispositifs actifs de blocage, des circuits de détection de crête et une partie circuit de verrouillage de sortie à connexion double.

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