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Thread: Setting up a swtich to turn off inverter when computer turns off

  1. #11
    Maximum Bitrate hd54321's Avatar
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    Quote Originally Posted by Sonicxtacy02
    just curious as to why you dont want to leave your inverter on while the car is off?
    The inveter would draw power if it's on while the car is off. Also, the inverter I'm using (Vector 400W) has a fan that always runs when it's on. I'd rather shut it off and have piece of mind that my battery won't be dead the following morning.

    falconey, thanks for the solution you provided. What I really need is control of the inverter when the engine is off. I found a shutdown controller over the internet that may do the job. If you do a completed items search on eBay for "car pc pro" or "carputer" you will find it (fyi - the product's retailer has been banned from mp3car because they apparently didn't cooperate with this forum's admin on rules of advertising). Anyways, it looks like a nifty little device. The following is a description of what this shutdown controller does:

    Lets start from the beginning. The car, inverter, pc and amplifiers are off. When the car key is turned, the car's accessory line receives 12V. This is detected by the Power Controller. It waits 7 seconds to see if the electrical system either stays on or shuts off. (this delay gives the electrical system a chance to stabalize after starting the engine or a chance to roll up the windows without the PC booting up) After the wait it turns on an inverter (if needed). If it is the Pro unit, it then checks the Hard Drive temperature and Ambient Temperature. If it is not too hot or cold, it turns on the PC, waits a predetermined amount of time, and turns on the amplifiers. It turns on the amplifiers last to reduce turn-on thump induced by the PC turning on.

    Once on, it is waiting for one of several things to occur. 1. The key to turn off (accessory line goes to 0V). 2. The user to push an optional button to turn off the PC while the car stays running. 3. The temperatures become too extreme. 4. The computer to turn off (pc accidently unpluged?).

    If 1 occurs, then the Power Controller will send the computer a signal to shutdown, turn off the amps, wait for the PC to turn off, then turn off the Inverter.

    If 2 occurs, then the Power Controller will send the computer a signal to shutdown, and wait for the PC to turn off, but leave the amps and inverter on.

    If 3 occurs, then the Power Controller will send the computer a signal to shutdown, wait for the PC to turn off, wait for the temps to return to an acceptable level, and then turn the PC back on.

    If 4 occurs, then the Power Controller will restart the PC. It has no reason to think the PC should be off.

    Note: For the Power Controller to control the Inverter, it is necessary to open up the inverter and connect two lines to the power switch of the inverter. This is NOT difficult; however it will void your warranty and we will NOT be responcible for your Inverter if you damage it by making the modification improperly. We will be offering modified Inverters if demand is sufficient. If not, you may send the Inverter to us and we will modify it for you for a small fee plus return shipping.]
    This is pretty close to the solution I'm looking for except that I really want control of the inverter with the key out of the ignition. But, I guess this is better since I know I won't accidentally leave the inverter on if I leave my car one night.

    Thanks guys!

    -HD

  2. #12
    Maximum Bitrate falconey's Avatar
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    Quote Originally Posted by hd54321
    The inveter would draw power if it's on while the car is off. Also, the inverter I'm using (Vector 400W) has a fan that always runs when it's on. I'd rather shut it off and have piece of mind that my battery won't be dead the following morning.

    falconey, thanks for the solution you provided. What I really need is control of the inverter when the engine is off. I found a shutdown controller over the internet that may do the job. If you do a completed items search on eBay for "car pc pro" or "carputer" you will find it (fyi - the product's retailer has been banned from mp3car because they apparently didn't cooperate with this forum's admin on rules of advertising). Anyways, it looks like a nifty little device. The following is a description of what this shutdown controller does:



    This is pretty close to the solution I'm looking for except that I really want control of the inverter with the key out of the ignition. But, I guess this is better since I know I won't accidentally leave the inverter on if I leave my car one night.

    Thanks guys!

    -HD
    Well the problem with getting just any kind of shutdown cotroller is you have to take into account how it effect surviving crank.

  3. #13
    Maximum Bitrate hd54321's Avatar
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    I think I found exactly what I've been looking for - Delay timer. I came across this in the thread about the software shutdown controller.

    It is programmable in seconds or minutes and can send either a pulse (for making a light blink or bell ring) or a one-time on-off operation. It's the cheapest ready-made solution I've found.

    -HD

  4. #14
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    I have a vector 400 as well.. I've left mine on as long as 10 days with a external hard drive powered and it started up just fine. My fan doesnt stay on all the time though. Just when a certain wattage is met.

  5. #15
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    Inverters with auto shutoff?

    Does anybody use an Inverter with an automatic shutoff feature that is triggered by a low voltage sensor?

  6. #16
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    Most if not all inverters sold today have that feature. Its not advisable to use it to shut down your inverter tho cause many times you'll find the sensor didnt kick in soon enough and you'll be left with a dead battery.

  7. #17
    Maximum Bitrate falconey's Avatar
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    Quote Originally Posted by Sonicxtacy02
    Most if not all inverters sold today have that feature. Its not advisable to use it to shut down your inverter tho cause many times you'll find the sensor didnt kick in soon enough and you'll be left with a dead battery.
    Agreed that function is strictly for protection and shouldn't be used as a shutdown feature.

  8. #18
    Low Bitrate joebagodoe's Avatar
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    My inverter fan stays on at all times. Is there a way to get it (the inverter) to shut off after the computer? I guess the ITPS could turn on the inverter, which turns the PC on, but then to power everything off...
    Today I stuffed some dolls full of dead rats I put in the blender. I'm wondering if maybe, there really is something wrong with me.

  9. #19
    Low Bitrate joebagodoe's Avatar
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    Maybe shouldve 'ed a little more. I found it HERE
    Today I stuffed some dolls full of dead rats I put in the blender. I'm wondering if maybe, there really is something wrong with me.

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