What is the value of Rmin for the Zener voltage regulator circuit shown in 3.39 and 3.40? What is the output voltage for RL =1kΩ? For RL =2kΩ? 5 ΚΩIsIz5 ΚΩVz = 5 VRLV,20 VRz = 0Figure 3.39 Zener diode voltage regulator circuit. 5 k2IzV,20 VVz5 V5 k2RĮ > RminFigure 3.40 Circuit with a constant voltage model for the Zener diode.

According to question: E=20VVz=5VR=5kΩ∵ (RL)min=RVzE-Vz ∴(RL)min=5000×520-5=1.66kΩNow…

5 ΚΩ Is Iz 5 ΚΩ Vz = 5 V RL V, 20 V Rz = 0 Figure 3.39 Zener diode voltage regulator circuit. 5 k2 Iz V, 20 V Vz 5 V 5 k2 RĮ > Rmin Figure 3.40 Circuit with a constant voltage model for the Zener diode.

5 ΚΩ Is Iz 5 ΚΩ Vz = 5 V RL V, 20 V Rz = 0 Figure 3.39 Zener diode voltage regulator circuit. 5 k2 Iz V, 20 V Vz 5 V 5 k2 RĮ > Rmin Figure 3.40 Circuit with a constant voltage model for the Zener diode.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 4RQ: What is the difference between a diode and rectifier?

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Question

What is the value of R_min for the Zener voltage regulator circuit shown in 3.39 and 3.40? What is the output voltage for R_L =1kΩ? For R_L =2kΩ?

5 ΚΩ
Is
Iz
5 ΚΩ
Vz = 5 V
RL
V,
20 V
Rz = 0
Figure 3.39 Zener diode voltage regulator circuit.

5 k2
Iz
V,
20 V
Vz
5 V
5 k2
RĮ > Rmin
Figure 3.40 Circuit with a constant voltage model for the Zener diode.

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