charge controller

Discussion in 'The Projects Forum' started by Northtexasengineer, Apr 15, 2010.

  1. Northtexasengineer

    Thread Starter New Member

    Apr 3, 2010
    7
    0
    Hello,
    I need some help designing Solar panel charge controller with a maximum power of 250Am. The charge controller must be able to control solar panel and and battery for shouting off and on.
    Thank you.
    Ousmane
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Post the manufacturer and part number of your battery, or post it's specifications/datasheet.

    Also post the manufacturer and part number of your solar panel, or post it's specifications/datasheet.
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    I think you mean 250mA instead of 250Am.

    You don't need a charge controller for that small amount of current.

    Just use a diode so that the solar panel won't drain the battery when the solar panel voltage becomes less than the battery voltage.
     
  4. russpatterson

    Member

    Feb 1, 2010
    351
    16
    Hi There,

    I posted my schematic for my charge controller here: http://backyardsolar.blogspot.com/

    Be warned that this is a work in progress and there are problems with the current version. It may give you some idea of how to handle the high and low voltage issues with the battery (this is for a lead acid battery BTW). I also have a motor controller on there. Let me know if you have any questions.
     
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