Page 3 of 4 FirstFirst 1234 LastLast
Results 21 to 30 of 38

Thread: Could, Would, Should this work??

  1. #21
    Newbie
    Join Date
    Jul 2001
    Posts
    4

    Post

    But, theoretically, there is no reason why it wouldn't work....
    Tell me why it wouldn't????
    Or doesn't the circuit even do what it is stated to do?? Aaron??

  2. #22
    FLAC
    Join Date
    Apr 2001
    Location
    Here, There, Everywhere
    Posts
    1,436

    Post

    Originally posted by THE_SKINNY_MP3_KID:
    <STRONG>But, theoretically, there is no reason why it wouldn't work....
    Tell me why it wouldn't????
    Or doesn't the circuit even do what it is stated to do?? Aaron??</STRONG>

    Aaron...... don't waste anymore of ya keystrokes answering this one..... this thread is gonna get bigger than your "Show us ya car pic" thread otherwise!!! hahahaha!
    Project - GAME OVER :(

  3. #23
    Newbie
    Join Date
    Jul 2001
    Posts
    4

    Post

    Well, can't you just tell me why it wouldn't work?

  4. #24
    Constant Bitrate
    Join Date
    May 2001
    Location
    Australia
    Posts
    183

    Post

    Is that true? Do laptop psu's output all the right voltages? and they can run on 14-8 volts? dont need steady 12v?
    I havent had my player in a car for quite some time and never with the laptop DC-DC converter until today. Todays test show it works with the engine off, idle, revving and it didn't even reboot when cranking.


    would one of these be enough to power a P133, network, soundcard, video card, hdd, no cdrom etc.??
    My system is a P166MMX with 64M SDRAM, AWE64 soundcard, on board video, 10G laptop HDD and no CD-ROM. It draws just under 2 amps from the battery. Mind you I am running the 166 with a core of 2.0V(should be 2.8) and have no cooling fans.

  5. #25
    FLAC
    Join Date
    Aug 1999
    Location
    Upper Marlboro, MD 20772
    Posts
    1,311

    Cool

    THE_SKINNY_MP3_KID: simple, some system will suck up more amps/power than u can imagine.

    Technics: interesting. I wonder how an AMD k6-III 400mhz will handle this. Also keep in mind, the minute you add cdrom + a regular HD, i don;t think that psu can handle them all at the same time, expecially if u have a CD in the cdrom.
    abcd-1
    Author of CobraI,II,III and now CobraIV.
    You can contact me on AOL instant messenger....nick is cenwesi or cenwesi3

  6. #26
    Constant Bitrate
    Join Date
    May 2001
    Location
    Australia
    Posts
    183

    Post

    Technics: interesting. I wonder how an AMD k6-III 400mhz will handle this. Also keep in mind, the minute you add cdrom + a regular HD, i don;t think that psu can handle them all at the same time, expecially if u have a CD in the cdrom.
    I've allready tried some other peripherals and yes, it doesnt like some power hungry devices. I've had a K6II/450, A Sony DVD drive and a CD-ROM with no problems. However one Seagate 7200 RPM HDD didnt spin up and a Pioneer DVD-ROM wouldnt spin up either. I doubt I'll need any more power than a K6II/450 and I'll live with the sony DVD(if I decide to add DVD). I was aiming this suggestion at people who don't want to put a power hungry Athlon 1.4GHz under the hood. I know many people here from Australia can't afford the DC-DC converters from the US let alone the peripherals to chew up the current it can produce. People here who can afford it will no doubt run out and buy an Alpine/Kenwood/Pioneer/Clarion AV headunit to stick into their rice burners.



    [ 07-19-2001: Message edited by: Technics ]

  7. #27
    FLAC
    Join Date
    Apr 2001
    Location
    Here, There, Everywhere
    Posts
    1,436

    Thumbs up

    technics.... I LOVE that riceboy image!!!

    I reckon I could hand out a ****load of those in Springvale, Box Hill and Caufield! (Ppl from Melbourne will get that!)
    Project - GAME OVER :(

  8. #28
    Retired Admin Aaron Cake's Avatar
    Join Date
    Jan 2000
    Location
    London, Ontario, Canada
    Posts
    2,464

    Post

    Originally posted by THE_SKINNY_MP3_KID:
    <STRONG>But, theoretically, there is no reason why it wouldn't work....
    Tell me why it wouldn't????
    Or doesn't the circuit even do what it is stated to do?? Aaron??</STRONG>
    I have explained it. Twice. See above. The circuit does what it's supposed to do, but will not work for your purpose due to the large surge current drawn by computer components starting up.

    I'm tempted to close this thread out of shear frustration.
    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."

  9. #29
    Newbie
    Join Date
    Jul 2001
    Posts
    4

    Post

    The Maximum current draw of my computer on the 12volt line, is 1.5amps, and that is while the harddrive spins up, while the player is playing an MP3 the current draw is about 500ma...
    so, would it work???

  10. #30
    Constant Bitrate
    Join Date
    May 2001
    Location
    Australia
    Posts
    183

    Post

    What hard disk are you using? If it's an old disk under about 2 Gig you may be okay. But I still dont like your chances. I'm assuming you are measuring the current with a multimeter. Using a multimeter will not show the true current on startup because the motor that turns the platters within the drive draws the current in large spikes. You wont see these spikes on your multimeter.

    The seagate 13Gig drive I tested showed an average spin up current of about 1.2A yet my DC-DC converter wouldn't spin it up and it can supply 1.5A without a problem. The spikes will most likely cause the linear regulator to shut down as most have overcurrent protection.

Page 3 of 4 FirstFirst 1234 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •