electronics question

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keith2728
Posts: 144
Joined: Fri Feb 22, 2013 8:03 am

electronics question

Post by keith2728 »

I have a controller for the airbags on my truck. They are simple airlift bags for hailing heavy loads, not air suspension. the remote is huge and i would like to integrate in the dash or console. the problem it it runs off three 1.5v aaa batteries, i would want to eliminate these and power directly from the truck. ok, now the question, what size resistor will take 12v down to 4.5? there are a lot of smart folks on this site, I'm very sure someone knows.
Last edited by keith2728 on Thu Jan 12, 2017 6:04 am, edited 1 time in total.
Old guy who forgot how fun car audio was till my son got his first car and found my stash.....
current system:
Clarion 807
(2) Phoenix Gold Elite .5
Focal 165 AS3
focal 130 AS
(4) Kicker L7 10"
Bit one

Soon to come
8" midbass in kick pannels
trickyricky
Posts: 1653
Joined: Sun May 06, 2012 8:01 am

Re: electrics question

Post by trickyricky »

You can get a dc-dc step down converter that's 12.6v to 5v, since your looking at less than 1000mA you can get some tiny boards now a days for almost next to nothing. There are some on ebay for 5 bucks that handle 3a, for safety you could add a resistor inline to limit the current to the remote. You would first have to figure out the actual current draw of the remote when you are pressing buttons (this will be mA) then using ohm's law you can figure out the resistors value along with wattage rating.

For example if the remote needs 100mA then you would need a 50ohm 1/2watt resistor.

Heck now that I think about it you can even use one of those car cell phone chargers (as they have an output of 5v and 1000mA) who doesn't have one uh?
KillerBox
Posts: 38
Joined: Tue Jul 26, 2011 12:30 pm

Re: electrics question

Post by KillerBox »

We use stepdown converters on our crane load moment computers.


https://smile.amazon.com/SINOLLC-Conver ... 2661618011
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keith2728
Posts: 144
Joined: Fri Feb 22, 2013 8:03 am

Re: electrics question

Post by keith2728 »

thanks guys, knew someone here would have the answer.
Old guy who forgot how fun car audio was till my son got his first car and found my stash.....
current system:
Clarion 807
(2) Phoenix Gold Elite .5
Focal 165 AS3
focal 130 AS
(4) Kicker L7 10"
Bit one

Soon to come
8" midbass in kick pannels
ttocs
the Floor Sweeping Hack with Golden Ears
Posts: 14783
Joined: Fri Dec 19, 2008 9:53 pm

Re: electrics question

Post by ttocs »

what kind of truck? Are you using for load leveling or to drop it? I put bags on my mustang and love em!
what else can I say I am a grumpy asshole most of the time.
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keith2728
Posts: 144
Joined: Fri Feb 22, 2013 8:03 am

Re: electrics question

Post by keith2728 »

load leveling. it's a 1 ton that i haul a trailer with.
Old guy who forgot how fun car audio was till my son got his first car and found my stash.....
current system:
Clarion 807
(2) Phoenix Gold Elite .5
Focal 165 AS3
focal 130 AS
(4) Kicker L7 10"
Bit one

Soon to come
8" midbass in kick pannels
ttocs
the Floor Sweeping Hack with Golden Ears
Posts: 14783
Joined: Fri Dec 19, 2008 9:53 pm

Re: electrics question

Post by ttocs »

there are so many great uses for them.
what else can I say I am a grumpy asshole most of the time.
User avatar
keith2728
Posts: 144
Joined: Fri Feb 22, 2013 8:03 am

Re: electrics question

Post by keith2728 »

yah, love my little truck. it's an 08 f350 kings ranch. I've gone all led lights to include fog and a light bar in the bumper. air system that feeds the air bags, horns and an outlet for tools. then the audio system that is on going. the latest is putting 8" mid bass in the kicks. on the drivers side i took out the parking break mechanism, then hooked the parking break to an actuator under the truck. on the passenger side cut out a huge connector that was in the way. finally have the room to start my molds.
Old guy who forgot how fun car audio was till my son got his first car and found my stash.....
current system:
Clarion 807
(2) Phoenix Gold Elite .5
Focal 165 AS3
focal 130 AS
(4) Kicker L7 10"
Bit one

Soon to come
8" midbass in kick pannels
vwdude
Posts: 1846
Joined: Sun Mar 31, 2013 11:55 am
Location: So cal

Re: electrics question

Post by vwdude »

That sounds killer.
A few of these and a few of those.
Creator of www.phoenixgoldregistry.com
hit me up to add your limited edition amps.
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keith2728
Posts: 144
Joined: Fri Feb 22, 2013 8:03 am

Re: electrics question

Post by keith2728 »

Thanks.

Progress on passenger side kick panel enclosure.
Attachments
mold of original passenger kick pannel
mold of original passenger kick pannel
mold passenger side kick panel area
mold passenger side kick panel area
Old guy who forgot how fun car audio was till my son got his first car and found my stash.....
current system:
Clarion 807
(2) Phoenix Gold Elite .5
Focal 165 AS3
focal 130 AS
(4) Kicker L7 10"
Bit one

Soon to come
8" midbass in kick pannels
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