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Thread: Q's: Best/Popular Dc-Dc convertor & #Amps for PC?

  1. #1
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    Post Q's: Best/Popular Dc-Dc convertor & #Amps for PC?

    I'm very new to this whole thing, though I've thought about the car PC Mp3player for a while now. I've heard about the Arise DC-DC convertors. Are these considered the best or most popular? Which model should I go with....and branching off this Q, how many amps does a PC with h/d and LCD roughly draw? I'd be using a P90, IBM 20GB, Seiko L4034 LCD, SB-16 soundcard, IBM 10T-T NIC. Thanks.
    P4 2.4GHz, Intel mobo w/onboard sound & video, 128MB memory, 100GB Seagate Momentus laptop drive, Xenarc 700TSV 7" touchscreen, IRman using Girder, 150W Opus dc/dc psu, Alpine CDA-9835 h/u, MBQuart speakers, Infinity 15" sub, MTX amps.

  2. #2
    FLAC
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    Cool

    Believe me when i say YES. For proof of it, go take a look at that stuff in my box that that little puppy powers up (including my 6.8" TFT screen).

    For $79, it beats building one not to mention the safety feature built into the psu incase u make a mistake which should NEVER happen. OOH also there is a pic of the psu on my site incase u are wondering how it looks.
    abcd-1
    Author of CobraI,II,III and now CobraIV.
    You can contact me on AOL instant messenger....nick is cenwesi or cenwesi3

  3. #3
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    Post

    Save yourself $20 and buy the same power supply here:
    http://www.industrialpcs.com/p_suppl...7004_12_24.htm
    1983 BMW 733i
    Cyrix 166 32MB with MPXPLAY And no display. Player sits on the back seat with a keypad in front. Someday I'll mount this thing for good...
    *****************************
    Gathering parts for carplayer v2.0!

  4. #4
    FLAC
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    Post

    Did u compare the amp rating. Also look at the amps u are getting on the +12v as oppose to the arise one. I strongly think the arise one is better.
    abcd-1
    Author of CobraI,II,III and now CobraIV.
    You can contact me on AOL instant messenger....nick is cenwesi or cenwesi3

  5. #5
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    I compared them:

    Peak Input Current:
    Arise ace-865v: 4A
    BPS-7004/12: 4A

    Max Output at +5V:
    Arise: 6A
    BPS: 7A

    Max Output at +12V:
    Arise: 2A
    BPS: 2.5A

    Max Output at -5V:
    Arise: 0.3A
    BPS: 0.3A

    Max Output at -12V:
    Arise: 0.5A
    BPS: 0.3A

    Looks like the BPS compares pretty favorably. And at $20 less, it's a pretty good deal.

  6. #6
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    I looked at the specs for both power supplies. They are identical. Both of them output 2.5A at +12v and 7A at +5v. Why would you pay $20 more when they are probably the same power supply?

    Although I will admit that "Arise" is a better name for a power supply than "Open Frame DC-DC Power Supply"
    Maybe that is why they can charge more?
    1983 BMW 733i
    Cyrix 166 32MB with MPXPLAY And no display. Player sits on the back seat with a keypad in front. Someday I'll mount this thing for good...
    *****************************
    Gathering parts for carplayer v2.0!

  7. #7
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    Well, there are shoddily made components and then there's quality items. I'm not saying who's using what. They both can be using the same supplier. I'll check them out and ask a few questions. Thanks for the URL.
    P4 2.4GHz, Intel mobo w/onboard sound & video, 128MB memory, 100GB Seagate Momentus laptop drive, Xenarc 700TSV 7" touchscreen, IRman using Girder, 150W Opus dc/dc psu, Alpine CDA-9835 h/u, MBQuart speakers, Infinity 15" sub, MTX amps.

  8. #8
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    I checked out the Arise's specs and they list the ACE865V min input is 8V and the Industrial PC's model is 10V. Two volts might not make that big a difference, but all in all the two are very close in specs. Since more guys here use the Arise I think I'll go with them.

    Now the next question is do they already have the connectors installed so I can just pop it onto my P90 m/b or is that something else I must order? Thanks guys.
    P4 2.4GHz, Intel mobo w/onboard sound & video, 128MB memory, 100GB Seagate Momentus laptop drive, Xenarc 700TSV 7" touchscreen, IRman using Girder, 150W Opus dc/dc psu, Alpine CDA-9835 h/u, MBQuart speakers, Infinity 15" sub, MTX amps.

  9. #9
    Retired Admin Aaron Cake's Avatar
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    Cool

    I'd pick the Arise unit simply becasue it has a lower minimum voltage. The voltage can easily drop to 8V when cranking a car on a cold winter morning.
    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."

  10. #10
    FLAC
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    How many amps does a PC with h/d and LCD roughly draw?
    Well in my setup, I draw about 3.0 amps off the 12 volt feed from the car. That is about 35 watts.

    First, the power conversion on my power supplie is about 85 percent efficient. That leaves 30 watts. Most of it is the + 5V supply, say 24 watts (4.5 amps) and the rest is the 12 volt line say 6 watts (0.5 Amps) The minus 12 line only uses a few milliamps, (under 50).

    Those three are the only power lines I use.
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

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