Recent content by jSwathi

  1. jSwathi

    Cascaded op-amp stages and saturation of final stage

    Tq, for the work done. Cant, we use DC input voltage and get the voltage, since while doing practically we prefer DC voltage to AC voltage. Can Even we use 10mV of input to draw the gain? Give me a solution.
  2. jSwathi

    Cascaded op-amp stages and saturation of final stage

    I used these capacitors to reduce the DC offset voltage.
  3. jSwathi

    Cascaded op-amp stages and saturation of final stage

    OK, I have done two parts and I am uploading. Please refer the third stage, where it's taking 230V and displaying 228V. Here, the question is op-amp taking 230V and displaying the output. Does it make sense?
  4. jSwathi

    Cascaded op-amp stages and saturation of final stage

    But, I simulated in Proteus. At the third stage, it's taking more voltage up to 230V. I am uploading the circuit with all the improvements made. please check.
  5. jSwathi

    Cascaded op-amp stages and saturation of final stage

    I am facing difficulty with the simulation for the requirement mentioned below. Should I use a capacitor with a small range at each stage? An input of 0.1mV would support the resistor of 10K. Help me out? 1) Input voltage: 0.1mV 2) Output voltage: 2.7V 3)Total gain required:2.7/(0.1*10^-3)=27000...
  6. jSwathi

    Cascaded op-amp stages and saturation of final stage

    Here I am uploading my design with all the changes you suggested. Let me know if there are further changes in my design. I am very thankful for the support you provided.
  7. jSwathi

    Cascaded op-amp stages and saturation of final stage

    Tq 1) Input voltage: 0.1mV 2) Output voltage: 2.7V 3)Total gain required:2.7/(0.1*10^-3)=27000 4) I am using three stages each of gain of 30 Is this requirement ok for the design should I improve it?
  8. jSwathi

    Cascaded op-amp stages and saturation of final stage

    In my design, I do not want use capacitor in the first stage.
  9. jSwathi

    Cascaded op-amp stages and saturation of final stage

    No, I mean 0.5*15*15*15=1687.5V. Is this possible?
  10. jSwathi

    Cascaded op-amp stages and saturation of final stage

    Can I reduce my voltage gain to 15 volts by giving supply voltage of 0.5 volts?Is this possible?
  11. jSwathi

    Cascaded op-amp stages and saturation of final stage

    My desired gain is 86dB which is calculated from the input and output. My input is 1V and output 30V (calculated according to resistors used) at each stage.The three stages gain is converted into dB. I will go through the link and modify the circuit. Are there any further changes in my design to...
  12. jSwathi

    Cascaded op-amp stages and saturation of final stage

    Thanks for the help, I am using small voltages to the amplifier so that it can amplify the voltages better. If I reduce the voltage, I cannot get the desired gain. PS: What should be my voltage to get the desired gain? What specification of high pass filter capacitor should I use in my circuit?
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