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Very interesting module XL4015 5A DC Buck Step-down Adjustable Voltage Power Converte

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    Very interesting module XL4015 5A DC Buck Step-down Adjustable Voltage Power Converte

    This is the voltage buck converter in battery testing machine that I use to test batteries with

    This is the part of the modification that I going to do for charging batteries with BMS protection boards I have mentioned this in another post before

    This is why I created a new post for this modification project

    https://www.ebay.com/itm/25479903121...53.m2749.l2649
    Last edited by sam_sam_sam; 04-03-2022, 06:51 PM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    #2
    Re: Very interesting module XL4015 5A DC Buck Step-down Adjustable Voltage Power Conv

    I have not forgot about this project either but was having a hard time finding a switching power supply that the switching power board profile was the same for a 12 volt switching power supply which I found some and they finally came in the a few days ago from China and when I have some time to work on it

    Here is the 12 volt switching power supply that I am taking about

    https://www.ebay.com/itm/12259701329...53.m2749.l2649

    Here is the 24 volt switching power supply that is used in the battery testing machine

    You have to select 24 volts @ 6 to 9 amp version

    https://www.ebay.com/itm/38371733973...Cclp%3A2047675

    This switching power supply has the same board profile but does not have the same current output

    https://www.ebay.com/itm/12377499516...Cclp%3A2047675

    They all seem to have the same design profile and the same connector profile which hooking up this switching power is going to be easy to do with the hardware and I not going to have to drill any new holes to mount them
    Last edited by sam_sam_sam; 07-16-2022, 02:10 AM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    Comment


      #3
      Re: Very interesting module XL4015 5A DC Buck Step-down Adjustable Voltage Power Conv

      Well I have finally found a working solution for charging battery packs with BMS protection boards


      Okay this one the current control does not work correctly but the meter module is very accurate for the type of meter it is

      https://www.ebay.com/itm/224143044400


      This one the voltage/current controller works correctly but does not have the meter module but the board layout is the exact same thing so the meter module sit right on top of it but you have to remove the pots from the board that does not work correctly and mount them on this board and you are ready to rock and roll

      https://www.ebay.com/itm/14473812508...Bk9SR5SUk7jyYA
      Attached Files
      Last edited by sam_sam_sam; 10-01-2022, 06:40 AM.
      9 PC LCD Monitor
      6 LCD Flat Screen TV
      30 Desk Top Switching Power Supply
      10 Battery Charger Switching Power Supply for Power Tool
      6 18v Lithium Battery Power Boards for Tool Battery Packs
      1 XBox 360 Switching Power Supply and M Board
      25 Servo Drives 220/460 3 Phase
      6 De-soldering Station Switching Power Supply 1 Power Supply
      1 Dell Mother Board
      15 Computer Power Supply
      1 HP Printer Supply & Control Board * lighting finished it *


      These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

      1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
      2 Hem Saw Computer Stack Board

      All of these had CAPs POOF
      All of the mosfet that are taken out by bad caps

      Comment


        #4
        Re: Very interesting module XL4015 5A DC Buck Step-down Adjustable Voltage Power Conv

        Here is the circuit diagram for this version of the voltage/current buck converter that actually works correctly

        https://circuitdigest.com/electronic...nverter-module
        9 PC LCD Monitor
        6 LCD Flat Screen TV
        30 Desk Top Switching Power Supply
        10 Battery Charger Switching Power Supply for Power Tool
        6 18v Lithium Battery Power Boards for Tool Battery Packs
        1 XBox 360 Switching Power Supply and M Board
        25 Servo Drives 220/460 3 Phase
        6 De-soldering Station Switching Power Supply 1 Power Supply
        1 Dell Mother Board
        15 Computer Power Supply
        1 HP Printer Supply & Control Board * lighting finished it *


        These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

        1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
        2 Hem Saw Computer Stack Board

        All of these had CAPs POOF
        All of the mosfet that are taken out by bad caps

        Comment


          #5
          Re: Very interesting module XL4015 5A DC Buck Step-down Adjustable Voltage Power Conv

          Update it turns out that only one out of the 5 that I bought was defective and the rest of work correctly

          https://www.ebay.com/itm/224143044400
          9 PC LCD Monitor
          6 LCD Flat Screen TV
          30 Desk Top Switching Power Supply
          10 Battery Charger Switching Power Supply for Power Tool
          6 18v Lithium Battery Power Boards for Tool Battery Packs
          1 XBox 360 Switching Power Supply and M Board
          25 Servo Drives 220/460 3 Phase
          6 De-soldering Station Switching Power Supply 1 Power Supply
          1 Dell Mother Board
          15 Computer Power Supply
          1 HP Printer Supply & Control Board * lighting finished it *


          These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

          1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
          2 Hem Saw Computer Stack Board

          All of these had CAPs POOF
          All of the mosfet that are taken out by bad caps

          Comment

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