Connect with us

+/- 15 volt dc power from battery

Discussion in 'Power Electronics' started by JusticeHere, Jun 7, 2017.

Scroll to continue with content
  1. JusticeHere

    JusticeHere

    2
    0
    Jun 7, 2017
    If I have a +/-15 volt dc power supply requirement for an instrument, how can I supply that instrument the required power with batteries? Any ideas for suppliers you can order small quantities from the internet would be helpful as well.

    Thanks!
     
  2. duke37

    duke37

    5,364
    772
    Jan 9, 2011
    You need more data.
    I suggest that you use four 9V batteries and a 7815 positive regulator and a 7915 negative regulator. The batteries must be big enough to provide the current.
     
  3. BobK

    BobK

    7,682
    1,688
    Jan 5, 2010
    10 alkaline cells for each polarity also works.

    Bob
     
  4. JusticeHere

    JusticeHere

    2
    0
    Jun 7, 2017
    How would the wiring work for the two battery packs? The input wiring is +15v, -15v, and common.

    Thanks.
     
  5. davenn

    davenn Moderator

    13,902
    1,971
    Sep 5, 2009

    the zero/common rail comes off between the 2 packs and from that pretty obvious when the negative and positive rails come from
     
    bushtech likes this.
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

-