comparator

  1. S

    Problem when measure square wave and Charge & Discharge

    Please help me, I got problem. From circuit diagram Target : I want to make square wave on Vout (Period =18 sec on :8 sec off: 10 sec) I have problem when I use scope to measure triangle and Vout , I have followed target. But when I use scope to measure Vout only, time Period and time on reduce...
  2. M

    Square wave using LM319 Comparator.

    Hi People, I am using an LM 319 High Speed Comparator to produce high frequency square wave as shown. However, from the first diagram, I assembled the connections based on second diagram, it does not work. The V+ and V- that is negative rail and positive rail I used is +9 and -9 V from 2...
  3. M

    Problem with generation of triangular wave

    Hi! I am working with comparator (In LTspice). I have to compare a sine wave and a triangular wave. The triangular wave should be at 2kHz frequency. So this should be the configuration for triangular wave: However, the results show that it is not a 2kHz frequency:- Last time I checked...
  4. Multisim 74LS85 problem

    HI all i am new to this site but i am doing my thesis and i have a serious problem and however i push my brain i cant find a solution.so i am building a circuit in multisim that get the sides of triangles and sqaures and then find the are in cm.i am using as my teacherr adviced me some...
  5. W

    DeltaT circuit using 10K thermistors to output 2-10vdc control voltage

    I need some help with a simple circuit - I want to convert the difference between 2 resistors (actually 10K thermistors) into a linear 2-10 vdc voltage output. If the resistances are the same, the output voltage is low, the greater the difference the higher the output voltage up to 10vdc. I am...
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