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Thread: Inverters can destroy equipment!

  1. #1
    Who am I? HiJackZX1's Avatar
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    Inverters can destroy equipment!

    I have been running 2 inverters, one to power a VGA splitter, and the other a USB Hub. One day I noticed that the hub stopped working, turns out the inverter fried the hub, the hub no longer shows up when plugging into any PC. It lights up but no install. I have now decided to try to power a new hub via the PSU. In the past, this hasn't work, causing the PC to stay stuck at post.

    I am just shocked though. I am using the wall adapter to power the hub, I figured it would be able to handle a surge, guess not!
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  2. #2
    Fusion Brain Creator 2k1Toaster's Avatar
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    I am pretty sure it wasnt a surge that killed it. It is the same reason why cheap inverters should not be used for anything but the most trivial things that could be thrown away when they break.

    The harsh square wave they put out is very very bad for electronics. It screws chips up big time to have all that noise there and then having a close to 50% duty cycle as opposed to a clean sine wave is bad for charging and regulator circuits.

    Not surprised it went at all.
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  3. #3
    Who am I? HiJackZX1's Avatar
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    Quote Originally Posted by 2k1Toaster View Post
    I am pretty sure it wasnt a surge that killed it. It is the same reason why cheap inverters should not be used for anything but the most trivial things that could be thrown away when they break.

    The harsh square wave they put out is very very bad for electronics. It screws chips up big time to have all that noise there and then having a close to 50% duty cycle as opposed to a clean sine wave is bad for charging and regulator circuits.

    Not surprised it went at all.
    I didnt know that at all. Well I have a different MoBo, its the KINO-690 S1 version 11, the one I had before is version 10. It seems to handle USB a bit different so when I attached the new power cable from the 5v rail, the PC did not get stuck at POST like version 10.

    What should i do about the powered VGA splitter? Currently it is also on a inverter because it will not work currectly on direct 12v power from the PSU. If I use the wall adapter it works fine, but if I connect to 12v PSU power, I get a green screen. Any ideas on how to fix?
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  4. #4
    Who am I? HiJackZX1's Avatar
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    I was thinking.... I have a 60 watt PC power supply laying around. I have to assume it has pwer regulation. It came with my Morex case when I bought it. I was thinking of using it to power the 5v rail. I cannot use the OPUS 320, with this new MoBo, the PC wont even turn on if I use the 5v rail on the OPUS. I figure if I use a small power supply, this should work. I am just wondering how I can power the cr@ppy 9V 600ma VGA splitter, I have tried several car adapters and none work. All cause the unit to display a different color screen.
    HiJackZX1 w/ The Tobiathin Core PC system!

    ZOTAC GF9300-G-E
    INTEL E8200
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    Starting Raspberry Pi multizone project.

  5. #5
    Fusion Brain Creator 2k1Toaster's Avatar
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    Quote Originally Posted by HiJackZX1 View Post
    I was thinking.... I have a 60 watt PC power supply laying around. I have to assume it has pwer regulation. It came with my Morex case when I bought it. I was thinking of using it to power the 5v rail. I cannot use the OPUS 320, with this new MoBo, the PC wont even turn on if I use the 5v rail on the OPUS. I figure if I use a small power supply, this should work. I am just wondering how I can power the cr@ppy 9V 600ma VGA splitter, I have tried several car adapters and none work. All cause the unit to display a different color screen.
    Video splitters are cheap. Just use the inverter and be done with it. When it dies buy a new one.

    You can use the +12v and +3.3v lines on the PSU to power the VGA splitter at 8.7v if you havent tried that.
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  6. #6
    Who am I? HiJackZX1's Avatar
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    Quote Originally Posted by 2k1Toaster View Post
    Video splitters are cheap. Just use the inverter and be done with it. When it dies buy a new one.

    You can use the +12v and +3.3v lines on the PSU to power the VGA splitter at 8.7v if you havent tried that.
    Its a VGA splitter though, mine cost $59 dollars I think. Its the stupid 600ma part that is killing me. I found one that is 500ma and most others a 1000ma. I did go ahead and modify the inverter and took out the cr@ppy fan and put a big high powered one on, so the inverter will not heat up at all.

    No I havent tried that, because I dont know how too, lol. I dont think I should be concerned with the splitter because all it is, is a video amplifier, so I dont think the inverter will kill it. Ive gone through about 4 USB hubs, and the splitter im still on the first one, so it isnt affected it seems. Im not going to break my head trying to power the stupid thing.

    i am concerned about the USB hub though, thankfully one 7 port hub runs off of BUS power because 4 of the 5 touchscreens are powered on their own, that leaves Mitch's audio selector, wireless keyboard, and 1 touch screen, which seems to be getting good power. The other hub though needs power, its powering another 4 port hub, HDTV tuner card, TPMS board, Capture card, and I think a few others, all which suck up so much power. i dont know why my setup has to be the odd one that cant power USB devices via the 5v rail. i have a SOHO echo cancel card and its being powered perfectly by the 5v rail. As soon as I put a USB device on it, the whole PC cr@ps out.
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    OPUS 320
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  7. #7
    Who am I? HiJackZX1's Avatar
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    Maybe i will use this for the hub. http://store.mp3car.com/ProductDetai...Show=TechSpecs i think it will be perfect. Now this unit also has a 9v setting, but the ma are too high. When I get this one I will try it on both.
    HiJackZX1 w/ The Tobiathin Core PC system!

    ZOTAC GF9300-G-E
    INTEL E8200
    4 Gigs
    OCZ Vertex 2 SSD
    OPUS 320
    1 Lilliput, 1 MTSVO-SC K301, 4 VM70 screens, 1 Eonon 19in

    Starting Raspberry Pi multizone project.

  8. #8
    Who am I? HiJackZX1's Avatar
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    Ok I ordered the OPUS thingy for my HUB and decided to just use the inverter for the VGA splitter. I managed to find a car adapter that was exactly 9V and 600ma and it didnt work. So there must be something in their retarded transformer that the splitter needs. I added a fan, but should the fan blow air in, or suck it out?
    HiJackZX1 w/ The Tobiathin Core PC system!

    ZOTAC GF9300-G-E
    INTEL E8200
    4 Gigs
    OCZ Vertex 2 SSD
    OPUS 320
    1 Lilliput, 1 MTSVO-SC K301, 4 VM70 screens, 1 Eonon 19in

    Starting Raspberry Pi multizone project.

  9. #9
    Who am I? HiJackZX1's Avatar
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    Plugged in the original penny sized fan and it blows the air up, so I did the same with the large fan. The inverter seems to run way cooler. All I have to do is wait for the 5v regulator from OPUS.
    HiJackZX1 w/ The Tobiathin Core PC system!

    ZOTAC GF9300-G-E
    INTEL E8200
    4 Gigs
    OCZ Vertex 2 SSD
    OPUS 320
    1 Lilliput, 1 MTSVO-SC K301, 4 VM70 screens, 1 Eonon 19in

    Starting Raspberry Pi multizone project.

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