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Recent content by lephuduc.90

  1. L

    Help me with this assembly language exercise

    Can anyone help me to write the code for the exercise below? I'm working with PCSpim. The following is a sample of a program output given the inputs 1 - 5: Enter an integer: 1 Enter an integer: 2 Enter an integer: 3...
  2. L

    design and implement metal detector

    thank you, Frank. Do you think this circuit have ability to detect metal? My idea about the working of this circuit is explained like this: The transistor is only turned on when the voltage across the capacitor is negative on the bottom plate. This is when the voltage on the capacitor is added...
  3. L

    the Colpitts oscillator

    could you show me eqs to calculate (design) each components to make the circuit well-work?
  4. L

    design and implement metal detector

    hi Frank, did u make a mistake here? this tuned circuit is in parallel, not series - - - Updated - - - hi Frank, did u make a mistake here? this tuned circuit is in parallel, not series
  5. L

    the Colpitts oscillator

    do u this circuit well-work?
  6. L

    the Colpitts oscillator

    can u show me how each components be calculated?
  7. L

    the Colpitts oscillator

    Can u expain me how the transistor work? the function of Cf and C1? the phase-shift of the circuit? Thanks
  8. L

    design and implement metal detector

    thanks for expaination, can u explain more how the transistor work, the function of Cc, Cc-e and Ce?
  9. L

    design and implement metal detector

    The circuit is an oscillator and the way it keeps oscillating is due to positive feedback. Can u help me to determine how the circuit work and the phase shift of the circuit? thanks

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