One Way Earth Signal?

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shezza

Member - Posts: 42

Joined: October 21, 2007

Location: Australia

Posted: September 06, 2015 at 12:01 AM / IP Logged

I have used one way diodes for + signals before, but today is the first time I tried it on a - and it wont pass through. I couldnt find anything googling.

I am not a diagram kind of guy, but in short... Two earth wires are coming in and they switch a relay. Though they arent allowed to earth each other as one is to open the doors and the other is to close. If they are both earthed, they cancel each other out. So I put a one way diode on each wire and connected them both beyond the diodes.

Any advice or tips would be greaty appreciated!

Thanks

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i am an idiot

Platinum - Posts: 13,667

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: September 06, 2015 at 12:07 AM / IP Logged

Turn the diodes around.

https://www.the12volt.com/12voltimages/12voltdiodes.gif

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shezza

Member - Posts: 42

Joined: October 21, 2007

Location: Australia

Posted: September 06, 2015 at 12:08 AM / IP Logged

Holy smokes haha! Thank you so much! I did not expect a reply so soon and so helpful :)

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