need a relay to hold 12 volts up 30 sec

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mys2

Member - Posts: 1

Joined: September 17, 2006

Location: United States

Posted: May 09, 2009 at 1:23 PM / IP Logged

Hi all,

i need a relay the will hold 12 volts up to 30 sec + when starting the viehicle. I know you can just use the ignition wire in the viehicle. What i am trying to do is take a acc. wire and make it like a ignition wire. So when i start the viehicle the voltage does not drop to 0 volts and stay around 12 volts + on thI acc. wire. Then when I shut off the viehicle the wire will rest a ground as it should.

Thanks.

funny

KPierson

Platinum - Posts: 3,527

This member consistently provides reliable information

Joined: April 14, 2005

Location: Ohio, United States

Posted: May 09, 2009 at 7:06 PM / IP Logged

a PAC TR-7 should do that.

Kevin Pierson

i am an idiot

Platinum - Posts: 13,674

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 09, 2009 at 7:11 PM / IP Logged

Part Number: TR7

need a relay to hold 12 volts up 30 sec - Last Post -- posted image.

The TR7 Is a universal module that combines many features into one box. Carrying one TR7 will cover more than 16 different SKU#.

• Low voltage trigger.

• Alpine video bypass.

• Latching outputs.

• Double pulse output.

• Pulse extender.

• Horn honking output.

• Linear actuator controller.

• Door lock pulse generator.

• Channel splitter.

• Pulses to constant output.

• 3 in 1 timer outputs.

• Pulses to latch/unlatch outputs.

• Pulses to pulse output.

• Pulses to timed output.

• Latching outputs #2.

• Turn on pop delay.

• Delayed amp turn off.

•(PLUS 2 more) in a new case design.

This product is solely for the purpose of interfacing with a rear backup camera. PAC warrants that the product delivered pursuant to this Invoice shall be free of defects in material and workmanship. PAC SHALL NOT BE LIABLE FOR CLAIMS OF ANY LOSS OR DAMAGE, CONSEQUENTIAL, DIRECT OR INDIRECT, ARISING FROM THE SALE OR USE OF PAC's PRODUCTS. CUSTOMER IS SOLELY RESPONSIBLE FOR COMPLYING WITH ALL FEDERAL, STATE AND LOCAL LAWS PERTAINING TO THE USE OF THE PRODUCTS.

dualsport

Silver - Posts: 983

Joined: September 27, 2005

Location: United States

Posted: May 09, 2009 at 7:51 PM / IP Logged

Seems a bit of overkill for such a simple function though.

Wouldn't a diode, capacitor, resistor and transistor do it easily enough?

hotwaterwizard

Silver - Posts: 1,350

Joined: December 11, 2003

Location: California, United States

Posted: May 14, 2009 at 12:44 AM / IP Logged

Check out this Circuit !!

http://ourworld.compuserve.com/homepages/Bill_Bowden/page2.htm#relay_i.gif

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

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dualsport

Silver - Posts: 983

Joined: September 27, 2005

Location: United States

Posted: May 14, 2009 at 8:49 AM / IP Logged

Exactly! I'd use the second version to ground switch the relay-

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need a relay to hold 12 volts up 30 sec

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