Recent content by EEStudent

  1. E

    Solving Window Comparator Circuit: What Could Be Wrong?

    lm111 does give a output but i think it is wrong... since it does not give me a square wave.. and 5 volts vtl and 7 volts vth... i think its wrong
  2. E

    Solving Window Comparator Circuit: What Could Be Wrong?

    i have tried deleting it and reinserting them several times it doesn't work.. same error
  3. E

    Solving Window Comparator Circuit: What Could Be Wrong?

    lm311 is in the library. under opamp. i don't know why it says undefined. i am trying to get the vtl and vth.. in the simulation which is vtl = 5v and vth = 7v..
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    Solving Window Comparator Circuit: What Could Be Wrong?

    http://img409.imageshack.us/img409/4825/sdfsbe9.jpg i am getting this error when i simulated the above circuit what could be wrong **** CIRCUIT DESCRIPTION ****************************************************************************** ** Creating circuit file...
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    VWhat output should I expect from my operational amp circuit using UA741?

    I know it gets clamped.. I used +/- 12volts to power the opamp and used 1v dc each at v1,v2,v3 so i got vout as 11
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    VWhat output should I expect from my operational amp circuit using UA741?

    http://img91.imageshack.us/img91/8356/opamp1hp2.jpg i know to power opamp i use dc.. but at the input should i use the dc or ac source and based on my calculations i got 66v1+1100v2+550v3 what should i use for v1,v2,v3.. if dc what should the value be and if ac what should the value be at...
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    VWhat output should I expect from my operational amp circuit using UA741?

    thanks for the help.. the gain is high so which input should i choose to get 66v1+1100v2+550v3
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    VWhat output should I expect from my operational amp circuit using UA741?

    I am designing a circuit using ua741 opamp to obtain a gain, in order to get a output on one of the inputs such as V1 should I ground the other two inputs and have a 0 voltage on ac or dc and also should I use ac or dc source because the professor did not specify..