Connect with us

12vdc to 19vdc Invertor ?

Discussion in 'Electronic Basics' started by Colin Lowe, Oct 22, 2003.

Scroll to continue with content
  1. Colin Lowe

    Colin Lowe Guest

    Hi all,
    I want to make a convertor to step up the voltage from 12vdc to 19vdc to
    power my laptop. The mains adaptor I have for the laptop is rated 19vdc and
    3.16A. Thefore I want to step-up the voltage from the 12vdc boat supply to
    19vdc with a capacity of 3.16A max current.
    Do you have a circuit or what other options do I have?

  2. Caution! Your laptop is going to be the test for your project. Check the
    manufacturer for a 12v adaptor. I know sometimes they are expensive, but how
    much would it cost to replace your laptop?

    Mike M
  3. the Wiz

    the Wiz Guest

    What if it was available ready-made for under US$30?

    Universal DC laptop adapter on eBay for US$26.24 (Buy It Now):

    I have one of these that works OK with a Compaq Presario 900 series laptop.

    A Google search with the following terms
    laptop power adapter 19 volt auto
    should find what you want. has adapters specific to your laptop model for US$80.

    More about me:
    VB3/VB6/NSBasic Palm/C/PowerBasic source code:
    Drivers for Pablo graphics tablet and JamCam cameras:
    johnecarter [email protected] mindspring com. Fix the obvious to reply by email.
  4. Baphomet

    Baphomet Guest

    Excellent point.
  5. Anders

    Anders Guest

    I have made 3 DC/DC converters for a car or boat with no trubble at all.
    Just connect to National web and webench and specify your needs. It will
    sugest a circuit and you can print the chematic and make a termo test. It is
    a fantastic web sight.

Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day