EE3115+DiscProb#10+Sol+F2018.pdf - EE3115 Discussion...

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Discussion Problem #10 EE3115 Fall 2018 A two-stage negative feedback amplifieris shown below. Each individual stageis an LF411 op amp with negative feedback to implement a gain of 10. Thecomposite amplifier has negative feedback implemented by the feedbackcircuit composed of RFand 1 kΩ.1. Implement this circuit in Pspice.2. Perform a transient analysis on the amplifier using a 1 mV positive goingpulse train having a duration of 5 microseconds and a period of 10microseconds. Set RFto 20 kΩ. The output should be a damped sinusoidalat every pulse transition. The transient time window should show aboutone hundred pulse train wave cycles.3. Repeat step 2) with RF= 13 kΩ. The output should now show sustainedoscillations.4. Remove the RF-1kΩ feedback circuit and obtain both a magnitude andphase Bode plots of the open loop amplifier. Use this information to
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