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DIY Circuits

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  • 21-10-2010 4:46pm
    #1
    heresjohnny
    Closed Accounts Posts: 6 ✭


    Hey Guys

    Im a CivEng grad and interested in buiding (very small) a wind turbine as a project.

    Part of it requires a charge controller. I was wondring how difficult it would be to build the following and or how much it would cost to get it custom built.

    John

    chargecontrollerschematic.jpg
    Tagged:


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    #2
    mikhail
    Registered Users Posts: 3,863 ✭✭✭mikhail


    The components are relatively cheap - tens of euro plus whatever the batteries come to, I'd estimate (though I'm not sure about that volt meter). The real cost would be labour. I don't know what's typical, but I'd recommend getting a few quotes as it'll likely vary a good bit.


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    #3
    Poly
    Registered Users Posts: 1,807 ✭✭✭Poly


    you could build it on a breadboard or vero board fairly cheaply, maplin or radionics should have all the bits.

    Instead of the volmeter, you could just use your multimeter and save a few bob


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    #4
    heresjohnny
    Closed Accounts Posts: 6 ✭heresjohnny


    Thanks guys,

    Have to admit im pretty much a complete noob to all this.

    This maybe a stupid question but I guess i
    -Get the board
    -Get the components
    -Solder the connections?

    John


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    #5
    D-Generate
    Registered Users Posts: 2,945 ✭✭✭D-Generate


    If you use breadboard then there is no need to solder. It is also much easier if it is your first time building a circuit as will teach you how to lay out circuits in an organised fashion.

    I suggest getting a breadboard, testing your circuit on that to make sure it works and then transfer it to Veroboard if it all works out. Veroboard is pretty cheap but breadboards cost a bit more but are reusable.


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    #6
    mikhail
    Registered Users Posts: 3,863 ✭✭✭mikhail


    Yeah, breadboard makes circuit-building a bit like the big flat board you'd get in a lego set as a kid - you clip all the pieces into it to make your circuit, and if something's wrong, you can pull it out and start again. It's for prototyping.

    Stripboard (or veroboard as D-Generate called it) is what you transfer the final circuit onto and then solder.

    A quick google search should give you a decent idea what I mean.


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    #7
    Poly
    Registered Users Posts: 1,807 ✭✭✭Poly


    Hey Johnny. Do you have a discription of the circuit? What's the purpose of the dummy load?


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    #8
    DublinDilbert
    Registered Users Posts: 5,367 ✭✭✭DublinDilbert


    Dummy load is to dump the power being generated as the batteries are fully charged.

    Dummy load could be a heater and warm up water...


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    #9
    FarmerGreen
    Registered Users Posts: 1,134 ✭✭✭FarmerGreen


    Did anyone else spot the mistake in the circuit diagram?
    Hint-what happens when you push PB1?


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    #10
    Poly
    Registered Users Posts: 1,807 ✭✭✭Poly


    FarmerGreen wrote: »
    Did anyone else spot the mistake in the circuit diagram?
    Hint-what happens when you push PB1?

    burn the sh1te out of IC2?


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