hp omen ax062nf laptop not charging with ac adapter

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  • mv270
    Member
    • Dec 2023
    • 17
    • France
    #1

    hp omen ax062nf laptop not charging with ac adapter

    Hi
    That laptop wont charge I dont know if the charger is genuine.
    To investigate further does anyone know about
    how the id pin works for this model, is it a pullup to plus or a analog voltage divider or a
    complete digital exchange.
    Thanks
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14667
      • Canada
      #2
      On barrel / coax power connectors, HP likes to use a low analog voltage that is then sampled by an A/D inside of the EC to gauge the power of the adapter. There are public articles on this topic.

      Dell uses a 1-wire interface (Dallas Semiconductor) to communicate the adapter details.

        Comment

        • mv270
          Member
          • Dec 2023
          • 17
          • France
          #3
          ok thanks

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14667
              • Canada
              #4
              HP Laptop Charger 3 Pin-Out Explained and diy 12v charger (youtube.com)​

                Comment

                • mv270
                  Member
                  • Dec 2023
                  • 17
                  • France
                  #5
                  100 k pullup seems to work

                    Comment

                    • mon2
                      Badcaps Legend
                      • Dec 2019
                      • 14667
                      • Canada
                      #6
                      Awesome!! The feedback is appreciated.

                        Comment

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