Touch sensor circuit

Details Touch sensor circuit Touch sensor circuit

H - Electricity

03

K

H03K 17/96 (2006.01) H05B 37/02 (2006.01) H05B 39/08 (2006.01)

Patent

CA 2229189

A touch sensitive sensor circuit having a touch input, pad for receiving a person's touch, and a power switching circuit for applying AC power to a load, wherein the Ac power includes a line-hot and line-neutral input, and wherein a person's touch on the touch input pad creates a circuit connection between the line-hot AC input and earth ground that triggers the power switch, the touch sensor circuit comprising a sense input circuit connected between the touch input pad and the power switching circuit and a power supply and reference circuit including AC to DC conversion circuitry that generates positive ground DC voltage references that track the line-hot AC input, and that supply DC power to the sense input circuit and the power switching circuitry .

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