Using the ADALP2000 analog parts kit / breadboard, construct the R-L voltage divider

Question

circuit using a 1k2 resistor and 10 mH inductor (code 103) as shown below. With the

ADALM2000 SCOPY signal generator, adjust the input voltage (Vin) to 4.0 volts peak-

to-peak (2.0 volts peak) at a frequency (f) of 60 kHz AC signal. Using the oscilloscope

function of the SCOPY, display on your computer, both the input (Vin) and output (Vout)

voltage waveforms on the same screen. Use the ADALM2000's 1+ and 1- wires to

measure the voltage across Vin and the 2+ and 2-wires to measure the voltage across

Vout. Note that once the circuit is connected to the signal source, the measured value of

Vin on the oscilloscope will be slightly less that 4V p-p (2 V peak). This is due to the

internal resistance of the SCOPY. For your calculations, use the measured value of Vin

rather than 2.0V peak. Set Vin scaling for 500 mV/div and Vout scaling for 200 mV/div.

Assume that the input voltage (Vin) is reference (Z = 0º). Remember that for a 60 kHz

signal, the period, t = 1/f = 1/(60 x 10³) = 16.67 usec. Therefore, a 90° phase shift would

result in a time difference (At) of 4.18 usec. Set the time-base scale on the SCOPY to 2.0

usec / div. Measure the time difference between the zero crossings of the two voltage

sinewaves as the voltages are going positive in order to compute the phase angle

difference (40) most accurately.

Attach a picture of your circuit mounted on the breadboard as well as a screenshot from

SCOPY showing both input and output voltage waveforms to this page.

What At between the two waveforms and output voltage amplitude did you measure?

Calculate the phase angle shift from At:

Vout

degrees (peak) (15 points)

At=

Is the output voltage (Vou) leading or lagging the input voltage (Vin)? Justify your answer

by referencing the screenshot of the input/output waveforms. (2 points)

Use hand calculations to verify your Vout measurement on a second piece of paper. What

is the % error for the amplitude and phase shift measurements? (3 points)

V₁

L

+

RV