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  • steparak commented on steparak's instructable CC/CV Power Supply 2 months ago
    CC/CV Power Supply

    I'm sorry, I thought you meant the potentiometers with 10 step of 1 k.And for sure in the future I will add a resistor in parallel to limit the range

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  • steparak commented on steparak's instructable CC/CV Power Supply 2 months ago
    CC/CV Power Supply

    Thanks for your comment. I know that the power supply is safer with his relative case, but I had to remove it because the cables that goes from the supply to the outside was cutted and was impossible to solder new cable. So I opened the case but most of these case are made of molded plastic and once you open it it will broke if you are not very careful. I didn't have a new case and due of that I can't replace. In a first place I thought to cover it with some electrical isolated material to avoid any risks, but then I had choosed the option to leave without case to improve also the power supply cooling. I have only linear 10 k potentiometer so I use that, but I don't know if I racomend to use 10 strokes version because they will reduce the precision of the system, and also the 10 k value...

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    Thanks for your comment. I know that the power supply is safer with his relative case, but I had to remove it because the cables that goes from the supply to the outside was cutted and was impossible to solder new cable. So I opened the case but most of these case are made of molded plastic and once you open it it will broke if you are not very careful. I didn't have a new case and due of that I can't replace. In a first place I thought to cover it with some electrical isolated material to avoid any risks, but then I had choosed the option to leave without case to improve also the power supply cooling. I have only linear 10 k potentiometer so I use that, but I don't know if I racomend to use 10 strokes version because they will reduce the precision of the system, and also the 10 k value of the potentiometer is used from the xl4015 only if you choose a input that is equal to the maximum input (around 38 v), for example in my case the input of xl4015 is around 18 v and on the maxiumium output (18 v) the voltage potentiometers reach a value around 4.5 k.This type of power supply doesn't came with the fan pin and doesn't have the temperature controll unit, but I you choose fox example atx power supply they have that. I choose to measure the voltage before the switch so I can connect the load, set the voltage and than open the switch to power the load, I don't think that there are substantial differences. Thank youStefano

    Thank you, I'm happy that you like it. I also think to do that without the power supply as you say, but I had created this variable power supply to use only on my table bench and always connected to the grid. But I probably will make in the future a smaller version that can be more portable and powered from any dc source, like battery pack.Thank youStefano

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  • steparak's instructable CC/CV Power Supply 's weekly stats: 2 months ago
    • CC/CV Power Supply
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      12 comments
  • steparak commented on steparak's instructable CC/CV Power Supply 2 months ago