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What is negative output?

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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=83024
Printed Date: April 27, 2024 at 10:42 PM


Topic: What is negative output?

Posted By: tombrooklyn
Subject: What is negative output?
Date Posted: September 17, 2006 at 11:30 PM

What is negative output?

Is that when electricity flows from the negative side of the battery or source to the positive side? 

Is negative output the same thing as reverse polarity?

Can electricity be flowing in both directions in different parts of a car at the same time? 

And if so, why would this be done?  Why not keep all the juice flowing from positive to negative?  

Where might negative output be typically used?




Replies:

Posted By: electrostatic
Date Posted: September 18, 2006 at 6:43 AM
what is negative output? it supplies ground (return) to complete the electrical circuit. it is an output in the sense that a device is supplying it to a circuit that requires a ground connection to activate the circuit. a.k.a. negative trigger.

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Prove your connections, use a meter!
I promise, I'll behave!




Posted By: ff-mike
Date Posted: September 19, 2006 at 12:41 PM
tombrooklyn wrote:

1. What is negative output?
2. Is that when electricity flows from the negative side of the battery or source to the positive side?
3. Is negative output the same thing as reverse polarity?
4. Can electricity be flowing in both directions in different parts of a car at the same time?
5. And if so, why would this be done?
6. Why not keep all the juice flowing from positive to negative?
7. Where might negative output be typically used?

1. as per Electrostatic
2. All current flows from negative to positive
3. No.
4. Generally not.
5. na
6. See answer 2
7. Negative switching is common- horns, pin switches, & engine sensors use it because you only need to run 1 wire from the sensor / switch to a device.





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