Will my circuit work?

Discussion in 'General Electronics Chat' started by Pti_craig, Aug 26, 2015.

  1. Pti_craig

    Thread Starter New Member

    Aug 26, 2015
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    I'm new to electronics so as much help as possible please.

    In diagram is two 12v dc batteries, a 6 pin toggle switch (on- off-on) and a socket to a motor.

    I believe the way this is rigged up I will be running

    * - one 12v battery in the off position
    * - two 12v batteries in series to make 24v in position 1
    * - and two 12v batteries parallel to make 12v in position 2.

    Will this work? Please excuse the basic picture
     
  2. Pti_craig

    Thread Starter New Member

    Aug 26, 2015
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    Whoops position 1 and 2 are the other way around so position 2 is the 24v option
     
  3. dl324

    Distinguished Member

    Mar 30, 2015
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    Position 2 puts the batteries in series, but taking the output from the common terminals means you'll always have 12V at the plug. In position 1, it's both batteries in parallel as you wanted.

    I'd do it like this:
    series-parallel-bat.jpg
     
  4. Pti_craig

    Thread Starter New Member

    Aug 26, 2015
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    Took me 3 hours to work that out with easily 50 drawing, so glad it will work. I will also take your way into account.

    Thank you for your help
     
  5. dl324

    Distinguished Member

    Mar 30, 2015
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    If I wasn't clear, your way won't work for series; the plug will always have 12V.
     
  6. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
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    FWIW: You will spare yourself much time and 'agro' via adoption of schematic (as opposed to pictorial) representation -- Schematics illustrate the circuit -- whereas layout drawings, etc... show only that -- layout...

    With constructive intent
    HP:)
     
  7. ISB123

    Well-Known Member

    May 21, 2014
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  8. Pti_craig

    Thread Starter New Member

    Aug 26, 2015
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    With your way, when the toggle switch is in the 3-4 position would the system be off?
     
  9. dl324

    Distinguished Member

    Mar 30, 2015
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    If you use a 3 position on-off-on switch; yes.
     
  10. Sensacell

    Well-Known Member

    Jun 19, 2012
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    Depending on the type of battery... connecting them in parallel can be problematic, they will "fight" if the terminal voltages are not exactly the same.
     
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