Patent ID: 7755218

Claim:
A capacitive touch switch and control device comprising: a capacitive sensor element for changing its capacitance when touched; a capacitor connectable in parallel with the capacitive sensor element; a capacitance/frequency converter has an input terminal and an output terminal, the input terminal connectable with a resistor and the capacitor, the output terminal is fed back to the input terminal via the resistor; a microprocessor connectable with the capacitance/frequency converter for processing a frequency signal outputted by the capacitance/frequency converter and outputting a corresponding control signal corresponds to the frequency signal to trigger a corresponding function of an electronic device; and an antenna for receiving a pair of signals outputted by a microprocessor, the pair of signals each undergoes a 180-degree phase shift relative to each other and are correspondingly transmitted to the positive branch and the negative branch, thus shielding noises from the environment of the capacitive sensor element S.