1. Figure 1 shows a reverse-biased Si diode circuit (Rimi= 2 ko, Vaas = 20 V). Draw approximate circuit and determine Va, k, Vaimit for the following diode models: a. ideal b. practical c. complete (r'a = 200 kn) imit VEIAS Figure 1

Electric Motor Control
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Chapter59: Motor Startup And Troubleshooting Basics
Section: Chapter Questions
Problem 12SQ: How is a solid-state diode tested? Explain.
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1. Figure 1 shows a reverse-biased Si diode circuit (Rimit= 2 ko, Vaas = 20 V). Draw approximate
circuit and determine VR, IR, Vaimit for the following diode models:
a. ideal
b. practical
c. complete (ra = 200 ka)
IR
Emit
VLAS
Figure 1
2. Modify the circuit in Figure 1 to obtain a forward biased Si diode circuit. Using the same Rimit and
Vaas values, draw approximate circuit and determine V, I, Valimit for the following diode models:
a. ideal
b. practical
c. complete (r. = 20 0)
3. By referring to Figure 2, draw approximate circuit and determine Vasia), Vasz), Ir, Vaimit for the
following diode models:
a. ideal
b. practical
c. complete (r'as =r2 =5 0)
Siz
RUMIT
2.2 ka
VBIAS = 18 V
Figure 2
Transcribed Image Text:1. Figure 1 shows a reverse-biased Si diode circuit (Rimit= 2 ko, Vaas = 20 V). Draw approximate circuit and determine VR, IR, Vaimit for the following diode models: a. ideal b. practical c. complete (ra = 200 ka) IR Emit VLAS Figure 1 2. Modify the circuit in Figure 1 to obtain a forward biased Si diode circuit. Using the same Rimit and Vaas values, draw approximate circuit and determine V, I, Valimit for the following diode models: a. ideal b. practical c. complete (r. = 20 0) 3. By referring to Figure 2, draw approximate circuit and determine Vasia), Vasz), Ir, Vaimit for the following diode models: a. ideal b. practical c. complete (r'as =r2 =5 0) Siz RUMIT 2.2 ka VBIAS = 18 V Figure 2
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