Lab #19

Lab #19 - Jaclyn Aucoin Summer 2003-Sec 1 Lab #19 Design of...

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Unformatted text preview: Jaclyn Aucoin Summer 2003-Sec 1 Lab #19 Design of Oscillators Using Op-Amps 7/16/2003 Lab Partner: Steve Smith PHASE SHIFT OSCILLATOR: 1) Design an inverting op-amp circuit with a gain of about 60 (Figure 1): Then, using equation (19-1), design a three-stage RC filter network which has a gain of 1/29 and a phase shift of 180 degrees at a frequency near 1kHz. Note that R2 should be greater than R. Why? What values did you choose for resistors, capacitors, and supply voltages? R2=16.8k, 60R2=1M, R=10k, V+=10V, V-=-10V, C=6.5nF, Pot=10k. Apply a signal to the input and observe the signal at point D. At what frequency is point D in phase with the input? At about 1kHz. What is the overall gain, from the input to point D, at this frequency? Vout/Vin=455mV/225mV=2.02 2) Adjust the potentiometer R so that the overall gain to the output terminal sown in figure 1 at the frequency found in step 1 is about 1. Connect the output to the input....
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This note was uploaded on 02/21/2012 for the course EE 3232 taught by Professor Feldman during the Fall '10 term at LSU.

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Lab #19 - Jaclyn Aucoin Summer 2003-Sec 1 Lab #19 Design of...

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