latching circuit how to do it

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=82131
Printed Date: May 06, 2024 at 4:09 AM

Topic: latching circuit how to do it

Posted By: rainman_pr
Subject: latching circuit how to do it
Date Posted: August 27, 2006 at 7:02 PM

hi hope some one can help me with this i need that from a momentary positve pulse be able to swich to to out puts for example press the momentary one time and there positive on cable 1 until i let go the momentary then the second time i press the momentary i have positive on cable 2 until i let go the momentary i just need it to swich from cable 1to cable 2 i hear that it can be done with 3 relays please let me know

Replies:

Posted By: HotRod53F100
Date Posted: August 27, 2006 at 8:24 PM

To do it very simply, purchase a SPST switch that toggles push ON, push OFF. Someone like MCM Electronics has them. Wire that switch to the coil of your switching relay. The switching relay has as many poles as the number of wires that you need to swap. When ON it powers the power relay, the other position drops power to the power relay. The power relay has to be at least two pole, pole one (normally closed) powers circuit 1, the other pole powers circuit 2 (normally open). If you're swapping audio signals, you will need more poles. Wire your power relay so that the main circuit is powered when there is no power to the coil of power relay. This way you don't have to maintain power to the power switching relay to use the main circuit.

Posted By: hotwaterwizard
Date Posted: August 31, 2006 at 9:44 PM

-------------
John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !

Posted By: hotwaterwizard
Date Posted: August 31, 2006 at 9:50 PM

-------------
John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !