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

DiscoverCircuits.com, has 45,000+ 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 original material posted by the designer. 
Please let us if you would like us to link to or post your design.

HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


Circuits designed by David Johnson, P.E.
Last Updated on: Thursday, November 30, 2017 10:29 AM


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



AC Power Control Circuits
 
Circuits Designed by Dave Johnson, P.E. :

AC Power Line High/Low Voltage Tester

AC Power Loss Alarm

Bi-Directional Charge Coupled Powers MOSFET Relay

Charge Coupled Bi-Directional Power MOSFET Relay

Detects Low Voltage 120VAC Power Line 

LED Strings powered by AC Line

Low Voltage 120vAC Power Line Alarm

Power Line Alarm

Solid State Relay Requires Only 50ua Drive Current

SSR Requires Ultra Low Control Current

Under/Over Voltage Alarm on AC Line
120 VAC Low Voltage Alarm

50ua Current Drives Solid State Relay Requires Only

AC Line Powered LED Flasher

AC Line Under/Over Voltage Alarm


 

Dave's Circuits

Hobby Circuits

eMail:
  David A. Johnson, P.E. about these circuits

 



HOME Schematics Index Hobby Corner Dave's Circuits Electronic Resources Contact Info
Imagineering Ezine    Discover Solar Energy Dave Johnson & Associates Faraday Touch Switches


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


Copyright  January, 1998 - November, 2017     David A. Johnson & Associates.  All Rights reserved. 


 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.