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Need small 800 volt battery

Discussion in 'General Electronics' started by Kimo, Jun 23, 2004.

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  1. Kimo

    Kimo Guest

    Have a need for a very small (relative) battery generating 800 volts
    DC. Anyone have any ideas? I'm not an electronics guy.
  2. Abugaj01

    Abugaj01 Guest

    perhaps those small disc cells (mercury or lithium) put in series? Don't know
    how small you mean by "small".
  3. Art

    Art Guest

    Hopefully you get them at a bucked deal, to produce 800 [eight hundred ]
    volts from a battery pack you will need a lot of batteries. Probably want to
    invest in a small fork lift or good size hand cart also.
  4. Julie

    Julie Guest

    You can construct one from approx. 534 2016 button cells in series. Singly
    stacked, it would be about 2'9" high; stacked in 4 columns, soldered in series
    would be an approximate 3"x3"x8" cube -- not too bad for 800v. Smaller button
    cells could get the size down further, if needed.

    What are your size requirements?
  5. yar

    yar Guest

    HI' I am YAR
    how many ampers you will used?
    generaly you can get this(800 volts ) with 12volt with any circuityou
    can convert the DC to AC volt & then use a transformer to nearly
    200volt then used two voltage doubler to get the 800volt you want
    If you agree send me an email and I will email you the circuits
    don't search for this batteries
  6. Kimo

    Kimo Guest

    We're looking to minimize the noise from electronics by going as close
    as we can to a pure DC power supply. Therefore, an 800 volt small....d
    cell size... battery will work really well.

  7. WDino

    WDino Guest

    You are better off using a standard battery, say 12V, and then a
    converter to generate the 800V.

    How much current would the 800V load require?
    And what size battery - how small?
  8. Abugaj01

    Abugaj01 Guest

    How can you convert voltages in DC power? You need AC power for a transformer.
  9. Robert Baer

    Robert Baer Guest

    It is called a DC-DC converter.
    Crudely speaking, the input DC powers an oscillator which drives a
    transformer to create the new voltage; the output is rectified and
    filtered to give DC.
    That oscillator can be a push-pull square wave, or can be a
    (single-ended) flyback or similar design.
  10. Abugaj01

    Abugaj01 Guest

    wow ... never knew you could turn DC into AC. That would be conveinent in a
    power outage, we could turn batteries into AC power.
  11. Robert Baer

    Robert Baer Guest

    I have seen such inverters for sale in Costco, Wall Mart, computer
    stores, electronic parts catalogs, etc.
    They have been commercially available for over 10 years.
  12. Julie

    Julie Guest

    It is called an inverter. You can get them for your car, rv, boat, or other
    similar personal conveyance, where they plug into your cigarette lighter or
    similar power-point and have 1 or more 120 VAC sockets.

    Same thing with computer power backup systems (or uninteruptible power supply
    -- UPS).

    They are used on a larger scale for emergency power systems where a temporary
    outage cannot be tolerated -- there will be some large-scale UPS, typically
    powered by submarine batteries that immediately kicks in on a power brownout or
    failure and keeps the system energized until the fuel-powered generator comes
  13. Mike Berger

    Mike Berger Guest

    Check some of the antique electronics groups and see if somebody
    still makes 200v or 300v batteries. They were available a long
    time ago.
  14. About 90 or so 9V PP1 batteries in series will do the trick. No wiring
    required either, just clip them together directly "end to end". Not
    exactly a robust or elegant solution though, although I suppose you
    could glue them together to make it more robust.
    How much current do you need?
    Don't use a DC-DC converter if you want low noise.

    Dave :)
  15. Lol ... when I was an 8th grader I put a pack of 12 9-volt batteries in series
    using the clips and touched the end terminals ... ouch!
  16. Darwins theory of evolution occasionally fails! :->
    Perhaps the OP will win next years Darwin Award?

    Dave :)
  17. pund kamath

    pund kamath Guest

    Build a simple voltage multiplier ckt. It should do the job for small current drain.
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