1. Plot the characteristic curve of the zener diode in the reverse-breakdown region from the results obtained in step 1 of the procedure.

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Discussion
1. Plot the characteristic curve of the zener diode in the reverse-breakdown
region from the results obtained in step 1 of the procedure.
2. Determine the internal resistance Rz of the zener diode from your data. Do
this calculation only on the straight-line breakdown region of the
characteristic curve plotted in step 1 above.
3. Determine the power dissipation in the zener diode for the maximum zener
current flowing through it from the obtained data of step1 in the procedure,
and compare it with PzM.
4. For the zener diode voltage regulator circuit of Fig.8, sketch the relation
between V, and I, (V, versus I, ). Plot the relation between I, and R1. Sketch
also the relation between Iz and I, Comment on the resulting curves.
5. Calculate the theoretical minimum value of R, required for putting the zener
diode in the zener breakdown region for the regulator circuit of Fig.8. What
value of load resistance results in the maximum zener current? Determine the
maximum Zener current Iz(max) in this case and compare it with Izm.
6. Plot the relation between V, and Vinfor the voltage regulator circuit in Fig.9,
and comment on the resulting sketch. From this sketch, determine the
minimum value of input voltage required to turn-on the zener diode.
7. Calculate the theoretical minimum value of Vin required to turn-on the zener
diode in the voltage regulator circuit of Fig.9. Determine also the maximum
permissible value of Vin knowing that the maximum DC power dissipation
of the PZD zener diode is 0.5W.
8. Explain the difference between line regulation and load regulation.
Transcribed Image Text:Discussion 1. Plot the characteristic curve of the zener diode in the reverse-breakdown region from the results obtained in step 1 of the procedure. 2. Determine the internal resistance Rz of the zener diode from your data. Do this calculation only on the straight-line breakdown region of the characteristic curve plotted in step 1 above. 3. Determine the power dissipation in the zener diode for the maximum zener current flowing through it from the obtained data of step1 in the procedure, and compare it with PzM. 4. For the zener diode voltage regulator circuit of Fig.8, sketch the relation between V, and I, (V, versus I, ). Plot the relation between I, and R1. Sketch also the relation between Iz and I, Comment on the resulting curves. 5. Calculate the theoretical minimum value of R, required for putting the zener diode in the zener breakdown region for the regulator circuit of Fig.8. What value of load resistance results in the maximum zener current? Determine the maximum Zener current Iz(max) in this case and compare it with Izm. 6. Plot the relation between V, and Vinfor the voltage regulator circuit in Fig.9, and comment on the resulting sketch. From this sketch, determine the minimum value of input voltage required to turn-on the zener diode. 7. Calculate the theoretical minimum value of Vin required to turn-on the zener diode in the voltage regulator circuit of Fig.9. Determine also the maximum permissible value of Vin knowing that the maximum DC power dissipation of the PZD zener diode is 0.5W. 8. Explain the difference between line regulation and load regulation.
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