Updated Feb 20, 2008. Yes, I still make these.
Oh and check out my other innovation
The USB Power Module -
HERE
Ok everyone, after many questions to the fact,
THIS IS NOT A POWER SUPPLY
It only turns on devices that use a momentary power switch to turn them on. When "Receiving" power (i.e. turning the car on) it duplicates/replicates you pressing the power button.
Will this work with my/ on my _____________ ?
This is a question YOU will have to answer using a multimeter and a piece of wire. The process might be slightly different for your system, but the ideal is still the same.
Make sure your system is unplugged and that any and all laptop batteries are removed. Using a multi-meter, determine which of the two solder pads on your power switch you need to attach the wires from your jack. Place your multi-meter on the "short", "continuity", or "beep" setting (you meter should "beep" if you touch the leads together). While holding the meter leads to the pads press the switch down. If you get a "beep" you most likely have found the two right pads to solder to. If not, try different combinations till you get the desired results. If you can’t figure this out, feel free to contact me. Take a look at the pics below to help understand this as well. Once you figure out the two pads to use, hook up the power/batteries for your system. Take a small piece of wire and briefly touch one end to each of the two pads you ended up with. If your system powers on, you're good to go. If not, you need to start the process all over.
-=[ I do build and sell these modules listed in this post. The other circuits displayed by the other posters are not of my design nor do I build/sell them. ]=-
ORDER HERE IF YOU'D LIKE ME TO BUILD YOU ONE
Just thought I'd share a few pics of the module I made to automatically turn a laptop/monitor/external drive - on when the car starts up. Basically duplicates/replicates pressing the momentary power switch you would normally press to turn the laptop/monitor/external drive - on. The relay activates for about 1/2 second, just enough to turn the device (laptop/monitor/external drive) on, then the relay deactivates and doesn't reactivate until the next time you start your vehicle. :-)
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THE W3BMA5T3R's LAPTOP AUTO POWER ON MODULE that I use for my setup (and I'm actually building them for other users here). It turns your laptop on with your car, it has a safety circuit (powered by USB) that prevents it from trying to power on your laptop if it's already on (like if you turn your key from Start/Run to ACC), includes a remotely mounted power switch for the times when windows freezes up and you need to hit a power switch, and includes a jack/plug setup so it's completely removable/detachable.
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-> INSTRUCTIONS HERE (how to install, and how to figure out your pad/momentary switch connection) <-
ORDER HERE IF YOU'D LIKE ME TO BUILD YOU ONE
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The schematic of my new AUTO POWER ON MODULE WITH SAFETY RELAY, REMOTE SWITCH AND PLUG/JACK FOR COMPLETE PORTABILITY. IF YOU WOULD LIKE ME TO BUILD ONE OF THESE FOR YOU, SHOOT ME A PM. You will have to solder two wires, one to each side of the power switch, and make a small hole in the side of your laptop for the plug/jack, but that is all.
Pics of the construction:
Pic of laptop power switch modification:
Pic of completed module:
Picture of the latest modules and accessories going out
Much Cleaner & Better Built
Keywords: Laptop Auto Power Turn On Module Adapter Convertor Converter controller Monitor LCD External Drive USB Hub Switch Modify Modification Computer shut down shutdown off Laptop Turn On short wire button solder remote