主 | Z = 0.01 pa

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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QUESTION 4.
Determine the forward voltage drop across the diode whose characteristics appear in Fig. 1.19
at temperatures of -75°C, 25°C, 100°C, and 200°C and a current of 10 mA. For each temper-
ature, determine the level of saturation current. Compare the extremes of each and comment on
the ratio of the two.
NU LAGUNA
40
Increasing
temperature.
5 of 12
125°C
Q
I, 0.01 pA.
30
25°C
20
10
-75°C
30-
-25-
ID (mA)
++++
(100°C)(-2.5 mV/°C) = -0.35 V
Increasing
20 temperature
15-
Increasing
temperature
10-
1 pA
2057
μA
-0.7 V
19
Decreasing
temperature
VD (V)
Transcribed Image Text:QUESTION 4. Determine the forward voltage drop across the diode whose characteristics appear in Fig. 1.19 at temperatures of -75°C, 25°C, 100°C, and 200°C and a current of 10 mA. For each temper- ature, determine the level of saturation current. Compare the extremes of each and comment on the ratio of the two. NU LAGUNA 40 Increasing temperature. 5 of 12 125°C Q I, 0.01 pA. 30 25°C 20 10 -75°C 30- -25- ID (mA) ++++ (100°C)(-2.5 mV/°C) = -0.35 V Increasing 20 temperature 15- Increasing temperature 10- 1 pA 2057 μA -0.7 V 19 Decreasing temperature VD (V)
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