Solar battery project

Discussion in 'Homework Help' started by Jomil, Oct 2, 2013.

  1. Jomil

    Thread Starter New Member

    Jan 9, 2013
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    I am working on a solar light battery project and am having a problem. I have no problems charging the battery with the solar panels. The issue is during discharge lights begin to flicker.
    I am using 12 vdc 10,000mah nicach battery in line with CUI 12-24 vdc controller, plus an adjustable LVD (adjusted for cut-out at 10.5 vdc) with 3-M16, 12vdc, 3watt LED lamps. When battery reaches 10.5 vdc during discharge the lights begin to flicker on and off. I would like them to just shut off.
    Question: is there a circuit that I could use in very low voltage that would alleviate the LVD. Or could I add something to LVD in line, anything to get rid of flickering light.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,645
    2,344
    Hello,

    Can you post a schematic of the set-up you have now?

    It looks like the Low Voltage Detection needs a hysteresis.
    Now when the voltage reaches the 10.5 Volts, the leds are switched off.
    This way there will be no load on the batteries and the voltage will rise a littlebit, letting the leds go on again.

    Bertus
     
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  3. Jomil

    Thread Starter New Member

    Jan 9, 2013
    6
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    This is the circuit I am trying to use.
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,645
    2,344
    Hello,

    What you show is only a block diagram.
    It tells nothing about the things inside the blocks.
    What is the schematic of the INSIDE the LVD?

    Bertus
     
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  5. Jomil

    Thread Starter New Member

    Jan 9, 2013
    6
    0
    It is a Rogue engineering LVD here is the website:
    http://stores.rogue-engr.com/StoreFront.bok
    I don't know what is inside, but I did ask Rogue if they had any solutions to the problem. I am waiting for a reply from them. I appreciate the help that you are providing.
     
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