Web DiscoverCircuits.com

Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 28,000+ electronic circuits, cross-referenced
into 500+ categories.    We have searched the web to help you find quick design ideas.
We make every effort to link to material posted by the designer. 
Please let us if you would like us to link to your design.
HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Book Corner Contact Info

DiscoverCircuits.com  --   Dave's Circuits
Circuits designed by David Johnson, P.E.

Find Dave's Circuits by Category
Last Updated on:  06/17/2009 03:30:09 PM

Capacitance Touch Switches   FET Circuits

The contents & graphics of Discovercircuits.com are copyrighted.
LINKING to Dave's circuits is permitted
but DO NOT COPY this data to your WEB SITE server.

Click on Drawing Below to view PDF version of Schematic
FINGER TOUCH ACTIVATED SWITCH
It does not get any easier if you want a solid state switch that is activated by the touch of a finger. Two small metal pins route voltage through the finger skin to a MOSFET switch. The circuit is great for situations where a membrane type mechanical switch is not desired.

Circuit Finger Activated Switch Circuit designed by Dave Johnson, P.E. (June 3, 2000)

Capacitance Touch Switches   FET Circuits
Master Schematic Category List - David A. Johnson, P.E.
HOME Schematics Discover Forum Hobby Corner Dave's Circuits Electronic Resources Book Corner Contact Info

 Linking is welcomed but COPYING any content or graphics to your web site is expressly prohibited.

 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy