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Thread: DC-DC converters...

  1. #1
    Maximum Bitrate Marsupial's Avatar
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    DC-DC converters...

    What if I need a DC-DC converter like the ITPS but for a 24V application, IE the kit sold by civic duties... is there a way to get that kind of supplies?

    maybe the ITPS can support 24V out?

    Thanks for any suggestions.
    -Mars

  2. #2
    Maximum Bitrate Marsupial's Avatar
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    Any ideas?

    I was thinking that I could put a 12-24V converter at the output of the ITPS?
    -Mars

  3. #3
    Constant Bitrate e_z_street's Avatar
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    Power Supply for 10.4" kiosk

    Quote Originally Posted by Marsupial
    Any ideas?

    I was thinking that I could put a 12-24V converter at the output of the ITPS?
    Have you had any luck figuring out how to power civicduty's kiosk in the car? I found this on ebay, but am not sure if the 24v is regulated and it is only rated for 60w.

    http://cgi.ebay.com/ws/eBayISAPI.dll...192413056&rd=1

    Thanks

  4. #4
    Maximum Bitrate eCarô's Avatar
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    24VDC PSUs should be easier to find than 12VDC ones. 24VDC is common in industrial applications.

    I know Keypower makes some. Probably Arise and many others also.

  5. #5
    Constant Bitrate e_z_street's Avatar
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    Quote Originally Posted by eCarô
    24VDC PSUs should be easier to find than 12VDC ones. 24VDC is common in industrial applications.

    I know Keypower makes some. Probably Arise and many others also.
    I looked into Keypower, Arise, and several others. The problem is that they do not have 24V as an output option. So far, the universal laptop power supply from ebay is the best solution. It has 24V @ 2.9A, but the rest of your peripherals still need power.

    Anybody else find anything?

  6. #6
    Maximum Bitrate eCarô's Avatar
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    Quote Originally Posted by e_z_street
    I looked into Keypower, Arise, and several others. The problem is that they do not have 24V as an output option. So far, the universal laptop power supply from ebay is the best solution. It has 24V @ 2.9A, but the rest of your peripherals still need power.

    Anybody else find anything?
    I was confused. I thought he was looking for a 24VDC PSU.

  7. #7
    Variable Bitrate Pokey's Avatar
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    What exactly are you doing? Why do you need 24v? Do you have a device that requires 24v, and if so, how much current?

    If you have a device that requires 24v, you might find that inside they unit, they are converting that 24v to something lower like 12v, or even 5v.

    Let us know.
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  8. #8
    Constant Bitrate e_z_street's Avatar
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    Quote Originally Posted by Pokey
    What exactly are you doing? Why do you need 24v? Do you have a device that requires 24v, and if so, how much current?

    If you have a device that requires 24v, you might find that inside they unit, they are converting that 24v to something lower like 12v, or even 5v.

    Let us know.

    The device Marsupial and I are talking about is described in this thread:

    FS: 400MHz PC w/ 10.5" touchscreen with Win98 LOADED Special only for Mp3car members!

    It requires 24V @ 3A. So far we have a simple ac solution for home testing, which is a 30V ac-to-dc adapter (Model: 273-1668) from radio shack. And we have a universal laptop adapter from ebay that gives 24V @ 2.9A. This works to power the pc, but now Marsupial wants to know about how to control the power supply like an ITPS would. I don't have the kiosk, but also want to know how to power all of the peripherals (i.e. ide slim slot dvd player, etc).

    Thanks

  9. #9
    Variable Bitrate Pokey's Avatar
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    Thats nice... I guess they're using a DC/DC converter inside that unit to provide the necessary dc voltages for the board, etc. Do you have schematics of this unit, mainly the PS? Are the dimensions of the PS the same as a normal one?

    There is no easy way to change 12dc into 24dc, but there are ways to get this to work. By the way, are these still available?
    Dual Lilliput's 70NP/C/T
    Syntax SV266AD KT266A
    AMD Athlon XP 2000
    Viking 256MB DDR
    D-Link Wireless 802.11B
    Seagate 120GB
    OrbitMicro 250W DC/DC converter
    SII Wireless Audio Link
    Digimoto OBD-II
    Earthmate GPS
    BU-303 USB GPS
    D-Link Bluetooth

  10. #10
    Constant Bitrate e_z_street's Avatar
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    Quote Originally Posted by Pokey
    Thats nice... I guess they're using a DC/DC converter inside that unit to provide the necessary dc voltages for the board, etc. Do you have schematics of this unit, mainly the PS? Are the dimensions of the PS the same as a normal one?

    There is no easy way to change 12dc into 24dc, but there are ways to get this to work. By the way, do you have these units?

    I'm still trying to decide if I want to buy one. I want to figure out how to power the thing correctly before I buy it for my car. Although, I might buy one for home use as an mp3 jukebox/home theater controller. I don't have any schematics as of yet, but if you read through the thread that I listed above, there are some links to pictures, etc.

    Thanks

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