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  3. 💬 Adjustable Boost Converter with Pass-Through

💬 Adjustable Boost Converter with Pass-Through

Scheduled Pinned Locked Moved OpenHardware.io
boostboost convertermcp1640step-upvoltage
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  • KoreshK Koresh

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

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

    @Koresh said in 💬 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?

    KoreshK 1 Reply Last reply
    0
    • NeverDieN NeverDie

      @Koresh said in 💬 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?

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

      @NeverDie
      0_1495321746120_poly_connection.png

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      • NeverDieN Offline
        NeverDieN 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?

        KoreshK 1 Reply Last reply
        0
        • NeverDieN NeverDie

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

          KoreshK Offline
          KoreshK 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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          • 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
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            • 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

                NeverDieN 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

                  NeverDieN Offline
                  NeverDieN 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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                  • openhardware.ioO 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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