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Circuits designed by David Johnson, P.E.
Last Updated on: Friday, December 29, 2017 02:53 AM

List of Dave's Circuit Designs

Text & Graphics Copyright © David A. Johnson, PE  --  ALL Rights Reserved.
LINKING to Dave's circuits is permitted but DO NOT COPY CONTENT to your WEB SITE server!




Relay Circuits
 
Circuits Designed by Dave Johnson, P.E. :

On/Off Switch with Latching Relay

Piezoelectric Tap Switch

Piezoelectric Triggered Switch

Pushbutton Switch works through Glass

Reduced Power Relay Driver

Remote Relay Driver

Small Pushbutton Controls 10 Amps AC

Solid State Relay Requires Only 50ua Drive Current

Thermocouple Temperature Activates Relay

Through Glass Push Button Switch

Touch Activated Battery Powered Latching Relay

Ultra Low Control Current Isolated Relay

Ultra Low Power Latching Relay Circuit

Bidirectional Solid State Relay

Dusk To Dawn Latching Relay

High-speed 75MHz light receiver

Light Receiver Works from 1Khz to Over 70Mhz

Low Voltage Latching Relay Driver


 

Dave's Circuits

Hobby Circuits

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