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LvW's latest activity

  • LvW
    LvW replied to the thread Homework help.
    Unfortunately, you did not answer my question about the "expected" results.
  • LvW
    LvW replied to the thread Homework help.
    * Please, can you tell us something about the result you expect as a "pulse" response? Are you really speaking about a "pulse" or do you...
  • LvW
    LvW replied to the thread How to adjust phase margin in ADS.
    I am not familiar with ADS - however, using a universal simulation program like PSpice it is possible to adjust a certain part within a...
  • LvW
    LvW replied to the thread Stability Analysis of Opamp.
    Sorry for the typing error (1ßß%) - must be: 100% of course.
  • LvW
    LvW replied to the thread Stability Analysis of Opamp.
    Let me repeat again: The keypoint for the two alternatives for the stability criterion is the question: Is the necessary phase inversion...
  • LvW
    LvW replied to the thread Stability Analysis of Opamp.
    The stability criterion requires that at 0dB loop gain the phase must be still slightly negative (because for negative feedback the...
  • LvW
    LvW replied to the thread feedback mechanism.
    Yes - that`s how I have interpreted your wording. More than that, it is also interesting that even an ac analysis (simulation program)...
  • LvW
    LvW replied to the thread feedback mechanism.
    No - I don`t think so. A positive voltage at the inverting input causes a positive output. Is this logical? However - I can imagine...
  • LvW
    LvW replied to the thread feedback mechanism.
    Yefj - I recommed to study in detail the concept and the effects of/on negative feedback. For my opinion, it does not make much sense to...
  • LvW
    LvW replied to the thread Opamp -1 and +1 stable.
    1) Closed loop: The "spike" in the region of the pole frequency is called "frequency peaking". It is an indication for a phase margin...
  • LvW
    LvW replied to the thread Opamp -1 and +1 stable.
    I think that such a danger does not exist. The larger the feedback capacitor, the lower the "cross-over frequency" (with unity...
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