(mA) Shift to left = (100°C)(-2.5 mV/°C) = -0.35 V 30- 25+ 20+ Increasing Decreasing temperature temperature 15 10- Silicon diode at I, 0.01 pA 5 room temperature 40 30 20 10 0.7 V 1 pA Vo(V) Silicon diode at Increasing temperature room temperature Increasing temperature 1 µA -75°C 25°C 1125°C FIG. 1.19 Variation in Si diode characteristics with temperature change. Lin 125°C 23. Detemine the forward voltage drop across the diode whose characteristics appear in Fig. 1.19 at temperatures of – 75°C, 25°C, 125°C and a current of 10 mA. For each temperature, determine the level of saturation curent. Compare the extremes of each and comment on the ratio of the two.
(mA) Shift to left = (100°C)(-2.5 mV/°C) = -0.35 V 30- 25+ 20+ Increasing Decreasing temperature temperature 15 10- Silicon diode at I, 0.01 pA 5 room temperature 40 30 20 10 0.7 V 1 pA Vo(V) Silicon diode at Increasing temperature room temperature Increasing temperature 1 µA -75°C 25°C 1125°C FIG. 1.19 Variation in Si diode characteristics with temperature change. Lin 125°C 23. Detemine the forward voltage drop across the diode whose characteristics appear in Fig. 1.19 at temperatures of – 75°C, 25°C, 125°C and a current of 10 mA. For each temperature, determine the level of saturation curent. Compare the extremes of each and comment on the ratio of the two.
Chapter59: Motor Startup And Troubleshooting Basics
Section: Chapter Questions
Problem 12SQ: How is a solid-state diode tested? Explain.
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Transcribed Image Text:(mA)
Shift to left = (100°C)(-2.5 mV/°C) = -0.35 V
30-
25+
20+
Increasing
Decreasing
temperature
temperature
15
10-
Silicon diode at
I, 0.01 pA
5
room temperature
40
30
20
10
0.7 V
1 pA
Vo(V)
Silicon diode at
Increasing
temperature
room temperature
Increasing
temperature
1 µA
-75°C
25°C
1125°C
FIG. 1.19
Variation in Si diode characteristics with temperature change.
Lin
125°C
Transcribed Image Text:23. Detemine the forward voltage drop across the diode whose characteristics appear in Fig. 1.19 at
temperatures of – 75°C, 25°C, 125°C and a current of 10 mA. For each temperature, determine the
level of saturation curent. Compare the extremes of each and comment on the ratio of the two.
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