Only do question 3 and 4 please Plotting i-v, and the one-way current valve DIOD
ID: 1885748 • Letter: O
Question
Only do question 3 and 4 please
Plotting i-v, and the one-way current valve DIODE Now that you know the typical forward voltage, you can take data on the diode's i-v characteristics! 1N4007 2. Create a graph of what i-v curve should hypothetically look like, based on the Constant Voltage Drop Model. Connect the circuit as shown to the right, paying particular attention to the direction of the diode. (Remember that diodes are polarized: they have a definite direction!) You will be recording the current through the diode, ip, versus the voltage drop across the diode,V 1k 3. PSU Starting at zero volts, record 10 measurements of voltage across and current through the diode. Each measurement should incrementally increase the source voltage up to (and including) 1.0V a. b. Record 10 more measurements of very small increments just above and just below 0.6V. c. Record 10 measurements below 0V, at 0.1V increments. This document d. These 30 measurements constitute one dataset. Plot these values. Label on this graph where the slope becomes exponential - also known the experimental forward voltage,Vfexp 3. How do the two graphs (hypothetical vs experimental) compare? Does the model make reasonable predictions about the i-v characteristics? How does the measured forward voltage compare to the one specified on the data sheet? If they are different, what might be the reason? 4.Explanation / Answer
3.
In the hypothetical graph the graph passes through origin.
But in the experimental it does not passes through origin because of the cut in voltage of the diode in general 0.7v. So, it passes through the point (0.7,0)
4.
Forward voltage of both will be slightly different because in practical different diodes will have slightly different forward voltages due to faults in the fabrication processes.
The forward voltage specified in the datasheet is the ideal one. So, ideal different from practical due to losses.
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