Capacitance Proximity Switch Technology

• Introduction
• Applications  
• Physics of Capacitance   

Units of Capacitance  
Dielectric Constant Definition   
Human Body Capacitance  

• Low Voltage Touch Switch Circuits      

Excitation Circuits
Capacitance Change Sensor Circuits 
Interface Circuits  

• AC Line Voltage Switch Circuits   
• Capacitance Proximity Switch Examples (Faraday Switches -- Commercially Available)

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New material will be added regularly.  -- Jan Johnson, Editor