# Difference between revisions of "Lab 4 TF EIM"

RC High-pass filter

# 1-50 kHz filter (20 pnts)

1.) Design a high-pass RC filter with a break point between 1-50 kHz. The break point is the frequency at which the filter's attenuation of the AC signal goes to 0(not passed). For a High pass filter, AC signals with a frequency below the 1-50 kHz range will be attenuated .

2.) Now construct the circuit using a non-polar capacitor.

3.)use a sinusoidal variable frequency oscillator to provide an input voltage to your filter.

4.)Measure the input and output voltages for at least 8 different frequencies which span the frequency range from 1 Hz to 1 MHz.

 Hz Volts Volts

5.)Graph the -vs-

# phase shift (10 pnts)

1. measure the phase shift between and

# Questions

1. compare the theoretical and experimentally measured break frequencies. (5 pnts)
2. Calculate an expression for as a function of , , and .(5 pnts)
3. Compare the theoretical and experimental value for the phase shift . (5 pnts)
4. Sketch the phasor diagram for ,, , and . Put the current along the real voltage axis. (30 pnts)
5. what is the phase shift for a DC input and a very-high frequency input?(5 pnts)
6. calculate and expression for the phase shift as a function of , , and graph -vs . (20 pnts)