Homework 5_rev2 - ECE 2100 Spring 2010 Homework assignment...

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ECE 2100 Spring 2010 Homework assignment 5_ rev2 Due April 23, 2010 Covered: Chapter 10: Amplifiers and Op-amps 1) Prelab: Consider the following differentiating Op Amp circuit. a. Derive a relationship between the input voltage and the output voltage. Assume the Op Amp is ideal. b. Assume the input voltage is a triangular wave. What is the output waveform? Explain! c. Find a relationship between the frequency and peak-to-peak amplitude of the triangular wave and the peak-to-peak voltage of the output waveform. d. Predict the output voltage peak-to-peak value if the input is driven by a 1 volt peak-to-peak, 200 Hz sine wave. 2) Consider the transformer plus full-wave rectifier shown, driven by a 120V (peak) 60Hz voltage (that is, V 1 =120V·cos(240 π t)). Assume that the diodes can be modeled as ideal except with a turn-on voltage of 0.7V. Also assume that the transformer is ideal. a. What will the peak voltage across the capacitor be? b. If the capacitor is loaded with a 100 resistor, sketch the waveform of Vout. What, approximately, will be the difference between the minimum and maximum voltage across the capacitor (that is, what will the ripple be?) c. Sketch the current waveform sourced by the voltage source V
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This note was uploaded on 11/21/2011 for the course ECE 2100 taught by Professor Kelley/seyler during the Fall '05 term at Cornell University (Engineering School).

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Homework 5_rev2 - ECE 2100 Spring 2010 Homework assignment...

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