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Solar Dragsters project - need advice

Discussion in 'General Electronics Discussion' started by dbzeroone, Feb 28, 2013.

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  1. dbzeroone

    dbzeroone

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    Feb 26, 2013
    Hello everyone!

    I'm researching the feasibility of an idea I had for a school science fair project. I want to make little solar drag racers to demonstrate the concepts of light -> electricity with a photovoltaic cell and how capacitors work.

    My knowledge of electronics is very limited. I only understand the concepts of how components work (caps, resistors, etc).

    The cars are based on this: http://blog.makezine.com/2012/05/03/build-a-fun-solar-roller-or-symet-beam-bot-this-weekend/

    That project isn't very exciting though because the vehicle barely moves. When the caps discharge, it moves about 10mm every 5 seconds or so.

    I would like to make them faster, either by discharging the caps more frequently or with a bigger discharge. They would be powered by a 4.5v 90mA solar cell. Any suggestions?
     
  2. davenn

    davenn Moderator

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    Sep 5, 2009
    well the power generated and that is discharged by the cap is goverened by the solar panel
    so 3 choices....

    much more light or
    bigger solar panel or
    both

    if what is seen in the video is the same as what you are getting with your one
    and it looks like its outside in the sun?
    then a bigger solar panel is your only choice

    Dave
     
  3. BobK

    BobK

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    Jan 5, 2010
  4. dbzeroone

    dbzeroone

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    Feb 26, 2013
    My solar cell is larger than the one in the video. Also, the motor BobK suggested below looks like a perfect match for it! Thanks for the help guys!
     
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