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Thread: System Restarts whenever I start my car

  1. #21
    FLAC
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    Originally posted by jjohnson:
    <STRONG>
    I've been using a custom-built ATX DC-DC PSU for about 4 months now and have never had any problems. The computer never reboots or hangs when I start the car. </STRONG>
    jjohnson,

    I'm very interested in what components you used to make your supply. Would you mind listing the IC's that you used to make your supply?

    Also, did you take the path of free samples or go through someone like Digikey?

    Thanks,

    Jeff_
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  2. #22
    Retired Admin Aaron Cake's Avatar
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    Cool

    Originally posted by Jeff Mucha:
    My car has no problem starting. It starts
    I didn't say it did.

    I don't remember ever saying that my cars voltage was down at 8 volts during starting. I said that it could happen if the internal resistance of the battery got very big.
    I didn't say it did. I just said that "if it does, then....".

    Also, My car is not fuel injected. It is my guess that the folks at Honda found a good way to deal with batteries
    You have a Honda that's not fuel injected? Is is modified to use a carb? Why? Or is it just really old?

    What is so wrong with using a diode and a capacitor if it works and solves the problem?
    That's just it, it doesn't solve the problem. It just masks the symptoms. Solving the problem would involve fitting a larger battery, larger alternator, or both.
    Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
    Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
    "If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

  3. #23
    FLAC
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    Originally posted by Aaron Cake:
    <STRONG>That's just it, it doesn't solve the problem. It just masks the symptoms. Solving the problem would involve fitting a larger battery, larger alternator, or both.</STRONG>

    Some guy who is overweight found that eating celery when he is hungry helps him lose weight.

    The correct solution is to get a lyposuction, staple the stomach, and go on Jenny Craig because we all know eating celery just masks the fact that if he eats normal he will get fat again.

    If you think that 3 extra amps of draw on a cars electrical system necessitates a new alternator and battery, thats ok for you, but I don't have that kind of money :-(
    MPEGBOX - Plexiglass Computer
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  4. #24
    Retired Admin Aaron Cake's Avatar
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    Cool

    Originally posted by Jeff Mucha:
    Some guy who is overweight found that eating celery when he is hungry helps him lose weight.
    That is a solution.

    The correct solution is to get a lyposuction, staple the stomach, and go on Jenny Craig because we all know eating celery just masks the fact that if he eats normal he will get fat again.
    While this is a solution, it is not necessarily the best solution.

    If you think that 3 extra amps of draw on a cars electrical system necessitates a new alternator and battery, thats ok for you, but I don't have that kind of money
    Ugh, I don't even remember what this topic was about anymore...I just took a quick look back and it appears the original problem was a machine rebooting when the car was started. The solution is to replace a weak/undersized battery, install better cabling, or both depending on the need. I didn't say that an extra 3A would require an alternator upgrade. It was just added as an example. Perhaps I should be clearer next time.
    Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
    Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
    "If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

  5. #25
    Moe
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    Its very simple: if you have a newer higher quality battery simply hook a direct line. if your battery is old then add a simple filter with a schotty diode in series with the battery and a .05 or up farad capacitor in parrallel with your load. the size of the cap dependes on the impedence or equivalent resistance of your load.

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