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Recent content by mhmd.sh89

  1. M

    self inductance how !!!!!!!!!!!!!!!!!!

    thank you very much i wanna see it and i want reply thanx
  2. M

    self inductance how !!!!!!!!!!!!!!!!!!

    hi everyone we know that faraday has discovered that the change in current (magnetic field) create an opposite voltage in the inductor. ok it's a experience but can i know why physically and by images if you can ?? why oppose a change in current , and not in current itself (how) I didn't find...
  3. M

    Prblm WITH lcd FLEX

    Hi friends I have a problem with the flex lcd.c library. When I connect the lcd on proteus , there is a warning about a logic detection (d4 to d7) , but the characters appear clear. But on the board , I don’t see any thing clear , and I test the output of data , I saw that’s all are 5 v ...
  4. M

    negative to negative power

    hi men is it important to release a trimmed circuit figured in the LM7905 datasheet? or I put the regulator simply with capacitors ? 10x
  5. M

    negative to negative power

    hi I have a -15V 0 +15 supplies and i want to convert it to -5v 0 +5 please can u help 10x

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