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4 digit 7 segment display

Discussion in 'Electronic Basics' started by karthik, Feb 11, 2006.

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  1. karthik

    karthik Guest

    I am doing project of -24v to + 24 v regulated power supply with 4
    digit 7 segment display.So please provide me some ideas
     
  2. Rich Webb

    Rich Webb Guest

    100 mA or 100 A? Ripple +/- 500 uV or +/- 500 mV? Commercial/industrial/
    military grade or "just to see what one looks like"? Quaintly 1000/week
    or quantity 1? For school, for hobby, or for work?
     
  3. karthik

    karthik Guest

    The rating is 3 Amps and I want regulated DC power supply.Is there is
    any circuit
     
  4. John Fields

    John Fields Guest

     
  5. Chris

    Chris Guest

    Of course, sir.

    Needless to say, it is far more economical to purchase electronic
    subsystems to accomplish your task, rather than build from individual
    components, much less take the time to actually design a circuit. And
    since a busy yet frugal person such as yourself is always pressed for
    time (your longest missive to s.e.d. or s.e.b. on this subject being
    only twenty-one words in length -- you undoubtedly throw words around
    like manhole covers because time is money), I'm assuming you''ll want
    to go that route.

    For the power supply, the you should purchase a Kepco BOP-36-5
    operational power supply, which will provide up to +/-36V at up to 5
    amps. You can easily remedy that by connecting an external pot to the
    external reference voltages available on the back terminals, then wire
    the device up as a non-inverting amplifier, and use feedback resistors
    to limit the maximum voltage excursion to +/-24V.

    For the display, you may wish to go with an Omega LDP-146-F3-R-1, which
    in addition to totalizing, will display voltage in the range requested
    in lovely 4" LED numbers. Easy-to-follow instructions for hooking up
    the power supply and the display circuit are contained in the
    respective equipment manuals.

    I hope this has been of service, and this response has provided you
    complete satisfaction, as was my exact and specific intent.

    Have a nice day
    Chris
     
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