1. For the switch circuit below, determine Vout(t) (1) before and after the switch closes; (2)
before and after the switch opens. Draw the waveform. Label the axes. Write the expression for
Vout(t) for both (1) and (2). Determine the values of all time constants.
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2. The output of a sensor has a range from 4 to 4.5V. Design an op amp circuit to amplify this
signal to match the 0-3.3V range of an ADC. Use only resistors between 100 Q and 10 MQ.
Assume only a 0-5V power supply is available. Specify values for all components.
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3. For the filter below, determine the symbolic expression for |Vout(w)/Vin(w)]|. Identify terms
for gain, low-pass filters, high-pass filters. Using the provided component values, draw a Bode
plot. Label all axes. Indicate on the gain and corner frequencies on the Bode plot.
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MECH 368 — 2022WT1
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