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mini 12v motor

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on_campus15 
Member - Posts: 2
Member spacespace
Joined: January 28, 2010
Location: Ontario, Canada
Posted: January 28, 2010 at 11:27 AM / IP Logged  

hi guys

the problem im having is,

i have a mini 12v motor with possitive or negative to chose from. what i want this motor to do

is turn one way or the other with a switch. ive tried a relay im lost now

any idea???mini 12v motor -- posted image.

i am an idiot 
Platinum - Posts: 13,667
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: January 28, 2010 at 12:46 PM / IP Logged  
mini 12v motor -- posted image.
eljefecito 
Member - Posts: 3
Member spacespace
Joined: June 21, 2008
Posted: January 29, 2010 at 7:50 PM / IP Logged  
mini 12v motor -- posted image.
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: January 29, 2010 at 10:47 PM / IP Logged  
Yeah - eljefecito's is preferred (less shorting risk etc).
But both are otherwise equivalent.
i am an idiot 
Platinum - Posts: 13,667
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: January 30, 2010 at 12:38 AM / IP Logged  

Actually if you think about it, the diagram I posted has one less terminal that will see a positive voltage.  My switch has 4 terminals that may at some time have positive voltage.  His diagram has 5 terminals that will at some time see a positive voltage.  On the corners of my switch, there are only 2 terminals that hav positive voltage on them.  The other diagram will have positive voltage on all 4 contacts. 

But as long as there is not an Idiot connecting the setup, he will probably be OK.

oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: January 30, 2010 at 1:16 AM / IP Logged  
Eh? Positive on all 4? So where is ground?
Yep - I've had one of those days too.
I figured yours always has 2 corners +ve.
eljefecito's has no corners +ve when off.
Both are the same when on - 2 corners plus a centre is +ve.
on_campus15 
Member - Posts: 2
Member spacespace
Joined: January 28, 2010
Location: Ontario, Canada
Posted: January 30, 2010 at 8:07 AM / IP Logged  
theres no idiot doing this setup,, everything is bench tested before it goes in my truck
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: January 30, 2010 at 10:52 AM / IP Logged  
Both suggestions will work.

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