Cutting solar cells

Collapse
X
 
  • Time
  • Show
Clear All
new posts

  • jflorey2
    replied
    Originally posted by GoldCobra
    Okay. Well atleast DC to DC converters I will look into this. I dont know why you think im trolling.
    Well, because you are asking questions, then getting mad at the answers, and then (apparently) ignoring them. If that's incorrect, then perhaps you could phrase your replies differently so people don't get that impression.

    Leave a comment:


  • Guest
    Guest replied
    Okay. Well atleast DC to DC converters I will look into this. I dont know why you think im trolling.
    Please dont get all negative with me, and threaten to close my page.
    Im only looking for answers

    Leave a comment:


  • inetdog
    replied
    Originally posted by GoldCobra

    Shouldnt the Electrons want to go to the Protons and Neutrons created by the mono cell.

    There must be a damn way. I dont care if there must be circuity something with the solar cells themselves. There must be a way to inject the Volts into the mono solar cell.

    The one kind of circuitry that could do part of what you want would be to get two DC-DC converters (each MPPT) and use one to convert high amps low volts to medium amps medium volts and the other to convert high volts low amps to medium amps medium volts. You could then put the two outputs into parallel or into series.

    For what I hope is the last time:

    If you have a bunch of cells that produce 1A at 10V and another bunch that produces 10A at 1V, then they each produce 10 watts For a total of 20 watts. Okay so far?

    If you could combine them in some horribly complex way using two DC to DC converters you could get, for example, 4A at 5v for a total of 20 watts. Watts in equals watts out (- losses).
    You are proposing to link the two together to produce 10A at 10V (which is 100 watts) instead of just 20 watts.
    Cannot be done!

    BTW, no solar cells produce protons and neutrons. They just move electrons around making areas that are more positive (fewer electrons) and more negative (more electrons.)

    It is beginning to look as if you are deliberately trolling, and I am tempted to close this thread. It is not going anywhere.

    Leave a comment:


  • Guest
    Guest replied
    I think Electronics have to play a big part with the solar cells themselves.

    Leave a comment:


  • Guest
    Guest replied
    Originally posted by inetdog

    Electricity does not work that way, no matter what kind of diodes you use and where you put them.

    You cannot "push" a high voltage low current source into a high current low voltage cell to get high voltage and high current at the same time.
    Shouldnt the Electrons want to go to the Protons and Neutrons created by the mono cell.

    There must be a damn way. I dont care if there must be circuity something with the solar cells themselves. There must be a way to inject the Volts into the mono solar cell.

    Leave a comment:


  • inetdog
    replied
    Originally posted by GoldCobra
    What im thinking is I need a Array of these tiny Cells creating 3.60 volts and low amp. And create atleast 1 amp out of array of small cells but high voltage. To push high voltage into my mono cell, so in return in creates high wattage.


    But what im not sure about diodes, and Ive been researching is that you need more amps and volts to make diode work.
    Electricity does not work that way, no matter what kind of diodes you use and where you put them.

    You cannot "push" a high voltage low current source into a high current low voltage cell to get high voltage and high current at the same time.

    Leave a comment:


  • sensij
    replied
    At this level of discussion, it is important to comprehend that the amount of *power* you can generate from a given area of cells is fixed. Playing with the series/parallel arrangement gives you the ability to get more volts and less amps, or less volts and more amps, but if you do everything right, when you multiply volts times amps, the number will stay the same. It isn't clear what you are trying to accomplish.

    You can't take a high voltage low amperage arrangement of small cells and put them in series with a full sized mono cell and get anything good. The low amperage assembly will limit the amperage of the entire circuit, and you won't get anything close to the rated power out of the large cell.
    Last edited by sensij; 04-01-2016, 02:30 PM.

    Leave a comment:


  • Guest
    Guest replied
    Heres something else ive been trying to play with... Although I believe I need atleast 1 amp for the diode to transfer the voltage to mono cell.

    I dont really know what Im doing. I just keep trying to play around and do recordings of different diodes....

    What im trying to do is have the solar cell producing 3.60volt into the mono cell that only makes 0.61 volt. So Im just trying to make the volts increase in mono cell so it will be 4+Volts with 6+amps perhaps larger..

    What im thinking is I need a Array of these tiny Cells creating 3.60 volts and low amp. And create atleast 1 amp out of array of small cells but high voltage. To push high voltage into my mono cell, so in return in creates high wattage.


    But what im not sure about diodes, and Ive been researching is that you need more amps and volts to make diode work.

    Im trying to stop the current and voltage from mono cell to go into the small solar cell that produces high voltage.

    Leave a comment:


  • Guest
    Guest replied
    Why does it matter. Should the bus and tabbing just allow conductivity no matter what, shouldnt they just all add up in the conductor

    Leave a comment:


  • Guest
    Guest replied
    Ive done other examples. Would you possibly be able to draw what you mean? dosnt have to be fancy. it be easier for you to draw it and then I can understand clearly.

    Leave a comment:


  • inetdog
    replied
    Originally posted by GoldCobra
    What I understand is to get Increased Voltage you use Series.
    To get Increased Current you set them in Parallel.

    In my Diagram I show the Increased current going through the Increased voltage.

    What im thinking is with increased amperage, it also increase voltage once it get there to the junction box.

    You know more than me about this. Im just trying to throw my theory at you.
    If you want to use series and parallel you must divide the available cells up into parallel groups, each with exactly the same number of cells. You can then put those groups in series.
    Or you can divide the cells up into series groups of exactly the same number of cells and then put those groups in parallel.
    Anything else, including trying to wire one group of cells in series and parallel at the same time, will not work (the double wiring just produces short circuits.)

    Leave a comment:


  • Guest
    Guest replied
    This diagram is pretty nice what I found off internet.
    Im just trying to combine both parallel and series. And I try explaingin that in my diagram

    Leave a comment:


  • Guest
    Guest replied
    What I understand is to get Increased Voltage you use Series.
    To get Increased Current you set them in Parallel.

    In my Diagram I show the Increased current going through the Increased voltage.

    What im thinking is with increased amperage, it also increase voltage once it get there to the junction box.

    You know more than me about this. Im just trying to throw my theory at you.

    Leave a comment:


  • SunEagle
    replied
    Some of the Thin Film type solar panels (not really individual cells) generated very high voltages. These were similar to the ones that were about 7" to 10" wide and 25ft long.

    For "cell" type pv it comes down to how many of them are wired in series to get the voltage you are looking for. A panel with 36 cells would get you about 18volts. 60 cell closer to 30volts. The size would be around 4" to 6" which would then determine the amp output and the panel wattage rating.

    Leave a comment:


  • inetdog
    replied
    Originally posted by GoldCobra
    I hope you are right! Becuase that would be damn kewl!
    I mean... I been drawing some stuff
    Series and Parallel Combined.
    And if you are right... Then I'd like to also add smaller cells to this array.

    I wish to combine smaller mono cells with big mono cells, that can either produce more amp and more volt.

    What you think?


    I think that you do not understand the fundamentals of series and parallel electrical circuits or else I am misunderstanding what you propose. (By the way, it is not at all clear to me what the graphic is intended to represent.
    Basic rules:

    When you put cells, batteries or panels (strings of cells) in parallel, they much all have the same voltage. Not hard for silicon PV cells, since they all produce essentially the same voltage at the same temperature, regardless of size.

    When you put cells, batteries, or panels in series, each unit must have the same current. That is where the problem lies, since cells will differ in current by size and amount of light hitting them as well as from different efficiencies and temperatures.

    For example, if I put two identical cells in parallel (same voltage) and then try to put that combination in series with a single cell I will get twice the voltage but only the current of a single cell. The second cell in the parallel combination is wasted.
    Similarly combining large and small cells in series will not work.

    Leave a comment:

Working...