Sponsored links

Go Back   MP3Car.com > Mp3Car Technical > Power Supplies


Reply
 
Share Thread Tools Display Modes
Old 05-15-2006, 11:02 PM   #1
Constant Bitrate
 
WarDriver's Avatar
 
Join Date: Apr 2006
Location: Central VA
Posts: 176
WarDriver is on a distinguished road
How To: Simple and clean DC to AC inverter remote switch mod

Though I'd make a quick how to guide for a remote power on switch for a DC to AC inverter.

Rational:
-I want to be able to turn off and turn on my power AC power inverter from the driver’s seat of my car.
-I don’t want to hack up my inverter so it is un-useable in another vehicle.
-I want the solution to be simple, clean and easy for a person of average skill to replicate.
-Power inverters that are plugged into the cig lighter are a bad idea.
-It has to be cheap

Parts I already had:
-350 watt power inverter
-Installed wiring kit (used for my audio amp)
-Small gauge wire I had laying around

Name:  Inverter.JPG
Views: 13941
Size:  117.1 KB

Additional Parts Required:
On/Off switch (Junk Yard $1)
Green Light (Radio Shack $2)
DC jack – Male (Radio Shack $2)
DC jack – Female (Radio Shack $2)

Total $7

Tools Required:
Drill w/Bit
Phillips Screw Driver
Soldering Iron
Solder
Electrical Tape

This is a simple idea. An inverter is right for my application. I’m running a laptop tucked away in the trunk along with a few other AC items. I would like to make it look as stock as stock and clean as possible. I’ve already run heavy gauge wire for my amp. Other wise I’d say run 4g wire.

So to start lets gather the parts. A quick trip to radio shack and the junk yard and I’m ready to roll. I was able to snag a factory fog light switch from the scrap yard for a buck. Since I had 2 blanks in my car, I grabbed it.

Next rip apart the inverter. Check out the wiring. Notice how the DC in wire is much larger than the on switch wiring. This shows that the inverter does not run all of its power through the main switch, but rather it utilizes an internal relay. **You now need to check to see which side of the switch has the power coming in and which side energizes the relay. Also while you’re in there with your multi meter double check to make sure that wire is 12Volts

Name:  Inside 2.jpg
Views: 13695
Size:  139.1 KB

Locate a good spot for the dc jack and drill a hole. Make sure you will have enough clearance once your reassemble the unit. Now that you’ve located the correct side of the switch solder a short piece of wire between the closed side of the switch and the center pin of the jack you just installed. (Make sure that it is the wire that energizes the relay and not the 12V constant.)

Name:  Remote.JPG
Views: 13034
Size:  113.8 KB

Now for the dash….I installed the factory switch with a 12V input coming off a fused line from a 12V constant source. Then the switch outputs to both the inverter remote switch and the little green light that I installed in the center of a switch blank.

Name:  Dash light on.JPG
Views: 13040
Size:  104.6 KB

To finish it all off the inverter got tucked in the rear panel work.


Name:  Hidden.JPG
Views: 12500
Size:  128.4 KB

If this type of remote on is not for you perhaps you should check here.
__________________
-WarDriver-
Server Administrator
Outdoor Nut

My DC to AC Inverter Mod
My Laptop Remote Switch

Last edited by WarDriver; 05-16-2006 at 11:46 AM.
WarDriver is offline   Reply With Quote
Advertisement
 
Advertisement
Sponsored links

Old 05-16-2006, 08:57 AM   #2
Constant Bitrate
 
WarDriver's Avatar
 
Join Date: Apr 2006
Location: Central VA
Posts: 176
WarDriver is on a distinguished road
Also...here is a copy of the wiring diagram in my car just in case someone would like to see what is going on. (Got to love MS paint)



Name:  Wiring Diagram.gif
Views: 18063
Size:  10.3 KB
__________________
-WarDriver-
Server Administrator
Outdoor Nut

My DC to AC Inverter Mod
My Laptop Remote Switch

Last edited by WarDriver; 05-16-2006 at 09:07 AM.
WarDriver is offline   Reply With Quote
Old 05-16-2006, 11:51 PM   #3
Constant Bitrate
 
RawsonDR's Avatar
 
Join Date: Dec 2005
Location: Dayton, OH
Posts: 221
RawsonDR is on a distinguished road
Good work. I still have to do this. (along with a lot of other things).
One question: did you put a resistor inline with the LED, or are you giving it 12 volts?
RawsonDR is offline   Reply With Quote
Old 05-17-2006, 02:28 AM   #4
Newbie
 
Join Date: Jan 2004
Posts: 44
Kaspin is on a distinguished road
interesting approach... When I used an invertor I just used a relay on the 12V input of the invertor and left the invertors switch "on". Another idea would be to just wire your switch in parallel with the invertor's switch.
Kaspin is offline   Reply With Quote
Old 05-17-2006, 08:11 AM   #5
Newbie
 
Join Date: Feb 2006
Posts: 20
finnegan is on a distinguished road
how about feeding ign to the onboard relay of the inverter and forgetting about the switch all together,that way if you have a remote starter the computer will be all fired up before you get into your vehicle...
finnegan is offline   Reply With Quote
Old 05-17-2006, 08:29 AM   #6
Constant Bitrate
 
WarDriver's Avatar
 
Join Date: Apr 2006
Location: Central VA
Posts: 176
WarDriver is on a distinguished road
Quote: Originally Posted by RawsonDR
]One question: did you put a resistor inline with the LED, or are you giving it 12 volts?

That is a good question. I assume you are speaking of the light in the dash. It is actually not a LED which made things more simple and the light less bright.


Quote: Originally Posted by Kaspin
] interesting approach... When I used an invertor I just used a relay on the 12V input of the invertor and left the invertors switch "on". Another idea would be to just wire your switch in parallel with the invertor's switch.

Both of these ideas would work. I didn't put a relay on the line in because I didn't want to splice a relay on my line in wire. They can be a pain getting those thick wires on small terminal ends. Also, I didn't wire the switch in parallel because I wanted somethign simple that was easily removed so it could be placed in another vehicle with ease.

Quote: Originally Posted by finnegan
]how about feeding ign to the onboard relay of the inverter and forgetting about the switch all together,that way if you have a remote starter the computer will be all fired up before you get into your vehicle...

Thought about that too...but my carpc is not running 100% of the times that I am in my car, so I didn't want my inverter kicking on every time I get in. If you are looking for a good design to do that check the link for the thread in the end of my orig post. Plus sometimes I just want to kick the inverter on...so a switch lets me do that without turning on all of my other accessories.

Thanks for the questions!
__________________
-WarDriver-
Server Administrator
Outdoor Nut

My DC to AC Inverter Mod
My Laptop Remote Switch
WarDriver is offline   Reply With Quote
Old 05-17-2006, 09:10 PM   #7
Constant Bitrate
 
TheLandYacht's Avatar
 
Join Date: Oct 2005
Location: Austin, TX
Posts: 219
TheLandYacht is on a distinguished road
Quote: Originally Posted by Kaspin
interesting approach... When I used an invertor I just used a relay on the 12V input of the invertor and left the invertors switch "on". Another idea would be to just wire your switch in parallel with the invertor's switch.

Yah, relay was the way I went too...of course, with a 1200watt inverter I needed a MONDO relay, otherwise the first time ya trip the relay it would weld the contacts together (made that mistake already)...ended up goin to the guys here in Austin that put together emergency vehicles (ambulances/firetrucks/etc) & gettin a 150amp relay. Felt insane to spend $75 on just the relay but whatcha gonna do?
TheLandYacht is offline   Reply With Quote
Old 05-17-2006, 09:42 PM   #8
Constant Bitrate
 
WarDriver's Avatar
 
Join Date: Apr 2006
Location: Central VA
Posts: 176
WarDriver is on a distinguished road
Quote: Originally Posted by TheLandYacht
Felt insane to spend $75 on just the relay but whatcha gonna do?

That hurt...could have run a parallel switch or do what I did...would have set you back $10 bucks max.
__________________
-WarDriver-
Server Administrator
Outdoor Nut

My DC to AC Inverter Mod
My Laptop Remote Switch
WarDriver is offline   Reply With Quote
Sponsored links
Advertisement
 
Advertisement
Old 05-17-2006, 11:22 PM   #9
FLAC
 
Jahntassa's Avatar
 
Join Date: May 2005
Location: Conyers, GA
Posts: 1,417
Jahntassa is on a distinguished road
I took a similar approach, wiring a relay in-line with the inverter's internal switch. Both the internal switch and the external 12v source have to be 'on' for my inverter to power on. I have the 12v lead going to my DSSC controller, and it's also wired so when i'm running the system on AC (I have a retractable AC line in my trunk) it shuts off the inverter.
Jahntassa is offline   Reply With Quote
Old 05-18-2006, 08:01 AM   #10
Constant Bitrate
 
WarDriver's Avatar
 
Join Date: Apr 2006
Location: Central VA
Posts: 176
WarDriver is on a distinguished road
Quote: Originally Posted by Jahntassa
I took a similar approach, wiring a relay in-line with the inverter's internal switch. Both the internal switch and the external 12v source have to be 'on' for my inverter to power on.


Very nice...I went with the setup that I did because I can either hit the switch in the dash or hit the switch on the inverter to power it on. That way if I have to toss it into another vheicle quickly (which does not have the remote power on switch), it will work 100% like a factory inverter.

Good call on the retractable AC line...is it a large amount of cord?
__________________
-WarDriver-
Server Administrator
Outdoor Nut

My DC to AC Inverter Mod
My Laptop Remote Switch
WarDriver is offline   Reply With Quote
Old 09-21-2008, 06:26 PM   #11
Constant Bitrate
 
WarDriver's Avatar
 
Join Date: Apr 2006
Location: Central VA
Posts: 176
WarDriver is on a distinguished road
UPDATE: Still goin' strong! I hope this has helped some others!

Viva La WiFi
__________________
-WarDriver-
Server Administrator
Outdoor Nut

My DC to AC Inverter Mod
My Laptop Remote Switch
WarDriver is offline   Reply With Quote
Sponsored links
Advertisement
 
Advertisement
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off




All times are GMT -5. The time now is 11:33 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Copyright © 1999 - 2008 Mp3Car.com Inc.Ad Management by RedTyger
Message Board Statistics