Hallo!

@ Nazar

Ich habe es versucht hoffentlich verständlich im Code zu skizzieren.

MfG
Code:
            Ud
                  Ur       R1
          min.2V         /
         <------ 1,25V  /
          _____  <---- /
         |     |  ___ <
     >---|LM317|-|___|-+ - - -
       A |_____|  -->  |     A
       |    |    I=Iled|     |
       |    |          |     |
       |    +----------+     |
       |    |          |     |
    Ui |    |          |     | Uo = Uled
       |   .-.         |     |
       |   | |R2       V ->  |
       |   | |         -     |
       |   '-'         |     |
       |    |          |     |
      ===  ===        ===   ===
      GND  GND        GND   GND

      Ui = Uled + Ur + Ud

           1,25 V
       I = ------
             R1


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