Touch control switch circuit

  • US 4,731,548 A
  • Filed: 09/29/1986
  • Issued: 03/15/1988
  • Est. Priority Date: 09/29/1986
  • Status: Expired due to Term
First Claim
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1. A touch controlled electric switching circuit comprising:

  • a source of power for the actuation of a load to be selectively coupled to said source of power;

    a controllable means for selectively coupling said source to a load; and

    a control circuit including a series voltage divider input circuit including at least one capacitor having a first terminal connected to said source of power and an input touch terminal for coupling a person'"'"'s body capacitance in series with said at least one capacitor such that the voltage across said one capacitor produced by said source of power is changed when said input touch terminal is touched and said control circuit provides a control output signal in response to the touching of said touch terminal which signal is applied to said controllable means for selectively coupling said source of power to said load.

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