0.5volt trying to power 12v device?

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HlH 3

Member - Posts: 2

Joined: September 05, 2003

Location: United States

Posted: September 05, 2003 at 4:30 PM / IP Logged

Hi,

I have a .5 volt signal wire that needs to power a 12v car device. I thought of course put a relay on it, but from what I have been able to see - a 0.5v signal wont trigger a relay

Is there a special relay or something I can buy from radioshack or somewhere local to get this to work, or any ideas?

THANKS

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auex

Platinum - Posts: 5,041

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Joined: December 23, 2002

Location: Arizona, United States

Posted: September 05, 2003 at 5:15 PM / IP Logged

Just curious, what are you trying to accomplish, and what are you using that supplies the .5V?

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HlH 3

Member - Posts: 2

Joined: September 05, 2003

Location: United States

Posted: September 05, 2003 at 5:28 PM / IP Logged

auex wrote:

Just curious, what are you trying to accomplish, and what are you using that supplies the .5V?

I am using a summit racing RPM switch, which is needing to trigger/power a vacuum solenoid for an intake manifold at 5300rpm.

The activation LED comes on at 5300rpm showing that it is working properly - and voltage goes from 0 to 0.5v so I know it's working... hardly. I checked the ground, blah blah

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auex

Platinum - Posts: 5,041

Joined: December 23, 2002

Location: Arizona, United States

Posted: September 05, 2003 at 5:47 PM / IP Logged

That doesn't sound like it is working. It should put out 12V, is it part# SUM-830449 ? I also noticed it said some bs about a protection circuitry and internal fuse. Have you tried to meter the output when the when it is disconnected?

Certified Security Specialist

Always check info with a digital multimeter.

I promise to be good.

Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

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BulletTooth

Copper - Posts: 122

Joined: December 13, 2002

Location: United States

Posted: September 05, 2003 at 7:40 PM / IP Logged

You might wanna try a simple transistor circuit, the only problem is that you will need about 0.65V to activate a transistor, however it might work with a 0.5V, you'll have to try. Let us know if you need any further help.

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0.5volt trying to power 12v device?

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