5v to 12v

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carstereoman

Member - Posts: 48

Joined: May 02, 2002

Location: United States

Posted: April 06, 2006 at 12:12 PM / IP Logged

Can I use a relay to take in 5 volts and make it 12 volts? I have a lexus with a 5 volt antenna power wire that I need to run 12volts for aftermarket antenna.

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bigscratch

Member - Posts: 9

Joined: September 02, 2002

Location: United States

Posted: April 06, 2006 at 3:39 PM / IP Logged

You should be able to find a relay that will work on 5 volts. You will need to find an alternate power supply for the 12 volt circuit since the 5 volts will only be used to actuate the relay.

A look thru the radio shack site indentified a few diffent models that would work for you.

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ill-logix

Member - Posts: 39

Joined: April 07, 2006

Location: United States

Posted: April 07, 2006 at 11:55 AM / IP Logged

Is the 5v wire the signal wire going to the antenna or does the antenna actually use 5v dc to operate? If 5v is the signal use a relay with 5v coil. Then using the normally opened contacts run +12v from that battery to the new antenna.

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infinkc

Copper - Posts: 438

Joined: October 28, 2002

Location: United States

Posted: April 12, 2006 at 7:33 PM / IP Logged

use a transistor to a relay

There are 10 types of people in the world, ones that understand binary and ones that dont.

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5v to 12v

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