Answered: 3 Series Diode Configurations 5.…

3 Series Diode Configurations 5. Determine the current I for each of the configurations of Fig. 155 using the approximate equiv- alent model for the diode. 20 V 102

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter59: Motor Startup And Troubleshooting Basics

Section: Chapter Questions

Problem 12SQ: How is a solid-state diode tested? Explain.

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Photoconductive cells are light-sensitive resistors in which resistance is inversely proportionated to light intensity when illuminated. These devices consist of a thin single-crystal or polycrystalline film of composite semiconductor materials. Cadmium sulfide (CdS) is used to make the most commercially available photoconductive particles which are sensitive to light in the visible spectrum. Other less commonly used substances respond to infrared light, but not to the visible spectrum. Such substances are lead sulfide (PbS), lead selenide (PbSe), and lead telluride (PbTe), and so on.

Question

3 Series Diode Configurations
5. Determine the current I for each of the configurations of Fig. 155 using the approximate equiv-
alent model for the diode.
20 V
102
Si
Si
Si
Si
12 V =
+
102
10 V
102
20 2
Si
(b)
(c)
FIG. 155

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