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  3. πŸ’¬ Adjustable Boost Converter with Pass-Through

πŸ’¬ Adjustable Boost Converter with Pass-Through

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boostboost convertermcp1640step-upvoltage
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  • K Offline
    K Offline
    Koresh
    Contest Winner
    wrote on last edited by
    #24

    Just little tip from me :) Use thermal relief instead of direct polygon connection.
    alt text
    It is much more useful in such cases.

    N 1 Reply Last reply
    0
    • K Koresh

      Just little tip from me :) Use thermal relief instead of direct polygon connection.
      alt text
      It is much more useful in such cases.

      N Offline
      N Offline
      NeverDie
      Hero Member
      wrote on last edited by
      #25

      @Koresh said in πŸ’¬ Adjustable Boost Converter with Pass-Through:

      Just little tip from me :) Use thermal relief instead of direct polygon connection.
      alt text
      It is much more useful in such cases.

      Where do I put that exactly?

      K 1 Reply Last reply
      0
      • N NeverDie

        @Koresh said in πŸ’¬ Adjustable Boost Converter with Pass-Through:

        Just little tip from me :) Use thermal relief instead of direct polygon connection.
        alt text
        It is much more useful in such cases.

        Where do I put that exactly?

        K Offline
        K Offline
        Koresh
        Contest Winner
        wrote on last edited by
        #26

        @NeverDie
        0_1495321746120_poly_connection.png

        1 Reply Last reply
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        • N Offline
          N Offline
          NeverDie
          Hero Member
          wrote on last edited by
          #27

          Sorry if I'm being dense, but how are the thermal reliefs better? What's their advantage?

          K 1 Reply Last reply
          0
          • N NeverDie

            Sorry if I'm being dense, but how are the thermal reliefs better? What's their advantage?

            K Offline
            K Offline
            Koresh
            Contest Winner
            wrote on last edited by Koresh
            #28

            @NeverDie It is much easier to solder the wire to pads with relief connection than the wire to directly connected pads. Your soldering point even can be unreliable if your pad is directly connected to very huge polygon and your soldering iron don't have enough power.

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            1
            • B Offline
              B Offline
              bilbolodz
              wrote on last edited by
              #29

              Please upload it on PCBS.io and provide a direct link

              B 1 Reply Last reply
              0
              • B bilbolodz

                Please upload it on PCBS.io and provide a direct link

                B Offline
                B Offline
                bilbolodz
                wrote on last edited by
                #30

                I've uploaded it on PCBs.io:

                https://PCBs.io/share/zagYj

                ordered but no tested yet. Cost of for PCB: 1,35 USD

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                • alexsh1A Offline
                  alexsh1A Offline
                  alexsh1
                  wrote on last edited by alexsh1
                  #31

                  @NeverDie I have got MCP1640CT-I/CHY in SOT-23 (BX5V marking on the chip)
                  Can these be used for this project please?

                  I also have some 8 pins ones, but there are not suitable

                  N 1 Reply Last reply
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                  • alexsh1A alexsh1

                    @NeverDie I have got MCP1640CT-I/CHY in SOT-23 (BX5V marking on the chip)
                    Can these be used for this project please?

                    I also have some 8 pins ones, but there are not suitable

                    N Offline
                    N Offline
                    NeverDie
                    Hero Member
                    wrote on last edited by
                    #32

                    @alexsh1
                    If the pinout is the same, then the PCB should work.

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                    • O openhardware.io

                      https://www.openhardware.io/view/279/Adjustable-Boost-Converter-with-Pass-Through

                      Shravan V.KS Offline
                      Shravan V.KS Offline
                      Shravan V.K
                      wrote on last edited by
                      #33

                      @openhardware-io
                      I am having issues can someone help
                      I am getting output voltage same as input , i removed enable pin supply still i was getting output voltage same as input what might be the issue?

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                      • skywatchS Offline
                        skywatchS Offline
                        skywatch
                        wrote on last edited by
                        #34

                        Did it work before or is it a new build?

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