diode. 5. Graphs and Calculations: 1. From the data in Table (1), draw a graph of a diode current (vertical axis) versus diode voltage. 2. Find the forward resistance (static & Dynamic) for each diode. 3. Find the reverse resistance (static & Dynamic) for, each diode.

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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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4. Procedure:
5.
Graphs and Calculations:
1. From the data in Table (1), draw a graph of a diode current (vertical
axis) versus diode voltage.
2. Find the forward resistance (static & Dynamic) for each diode.
3. Find the reverse resistance (static & Dynamic) for, each diode.
6. Discussion:
1. List the difference between Ge and Si diodes.
2 Give some uses of ordinary and Zener diodes.
3 Comment on your results.
+ (mA)
40
30
Reverse-bias region
(VD<0V.Ip-4)
Lhode characteri
n
1 Connect the circuit shown in Fig. 1.4 (a).
2. Adjust the d.c. power supply to the values given in Table (1)
For each voltage, measure and record the D.C voltage drop (Va)
across the diode and the current passing through it.
3. Repeat step (2) with the diode reverse - biased.
4. Repeat steps (2) & (3), with the ordinary diode being replaced
by a Zener diode.
0
1
2
3
4
5
C
F
8
9
16
O
T
2 msk a
20
SUPPIS
Voltage (volts)
Tangent line
-10
Q-poi
de operation)
-AV₂
Fig 12
20+
19+
18
17-
16
15
741
454
*16
14-
13
12-
11
10
O
517
8
7
6
s
548
561
5%
577
542
3
624
540
514
2
1
Q-point Sal
660
686
708
725
469 mv
35 21 MV
AV
10 PA
20 PA
30 PA
40 PA
50 PA
mw
wer
Forward
VS(V)
MY
My
mv
mv
Eq. (LD
mv
MV
mv
mv
My
my
mr
577 Mv
03
0.5
(VD-OV. Jo-0mA)
Is (A)
6
2.3
3.3
4.3
5.2
4.7
42
2
4.2
7. 2
No-bias
530
(a)
0-10 V
0,7
MA
480 UA
1.45 MA
2.4 MA
3.4
MA
4.4 MA
MA
6.4 MA
1.4
MA
MA
me
MAA
MA
MA
MA
MMA
MA
MA
MA
Actual commercially
available unit
Defined polarity and
direction for graph
Jp
Forward-bias region
(VD >OV. /p>0 mA)
region
Fig. 1.3
D1
Z
O
(a)
Fig. 1.4
VI(V)
0
-997mv
-1.4V
-2.10
-3.11 V
Fig 1
-5.9
-1.9V
9.1v
-8. 7 V
Reverse
- 777 Mv
2 v
299V
3.99 V
41.94 V
4.19 V
4.95 V
41.462V
4.47 15
LR1
180
(b)
to
0
I. (A)
O
VI
Va
ما کو
- 5.1 UA
-5.144
O
5.95 UA
-5.954 of
5.152 Uk
5.759 UA
-5.958 UA
-5.231UA
5.96 Up
- 20-NA
-401.9 MA
602 na
8-3.x NA
UA
105
1.05 mA
2.04
MA
3.03
MA
4.03 MA
5103 1
Transcribed Image Text:4. Procedure: 5. Graphs and Calculations: 1. From the data in Table (1), draw a graph of a diode current (vertical axis) versus diode voltage. 2. Find the forward resistance (static & Dynamic) for each diode. 3. Find the reverse resistance (static & Dynamic) for, each diode. 6. Discussion: 1. List the difference between Ge and Si diodes. 2 Give some uses of ordinary and Zener diodes. 3 Comment on your results. + (mA) 40 30 Reverse-bias region (VD<0V.Ip-4) Lhode characteri n 1 Connect the circuit shown in Fig. 1.4 (a). 2. Adjust the d.c. power supply to the values given in Table (1) For each voltage, measure and record the D.C voltage drop (Va) across the diode and the current passing through it. 3. Repeat step (2) with the diode reverse - biased. 4. Repeat steps (2) & (3), with the ordinary diode being replaced by a Zener diode. 0 1 2 3 4 5 C F 8 9 16 O T 2 msk a 20 SUPPIS Voltage (volts) Tangent line -10 Q-poi de operation) -AV₂ Fig 12 20+ 19+ 18 17- 16 15 741 454 *16 14- 13 12- 11 10 O 517 8 7 6 s 548 561 5% 577 542 3 624 540 514 2 1 Q-point Sal 660 686 708 725 469 mv 35 21 MV AV 10 PA 20 PA 30 PA 40 PA 50 PA mw wer Forward VS(V) MY My mv mv Eq. (LD mv MV mv mv My my mr 577 Mv 03 0.5 (VD-OV. Jo-0mA) Is (A) 6 2.3 3.3 4.3 5.2 4.7 42 2 4.2 7. 2 No-bias 530 (a) 0-10 V 0,7 MA 480 UA 1.45 MA 2.4 MA 3.4 MA 4.4 MA MA 6.4 MA 1.4 MA MA me MAA MA MA MA MMA MA MA MA Actual commercially available unit Defined polarity and direction for graph Jp Forward-bias region (VD >OV. /p>0 mA) region Fig. 1.3 D1 Z O (a) Fig. 1.4 VI(V) 0 -997mv -1.4V -2.10 -3.11 V Fig 1 -5.9 -1.9V 9.1v -8. 7 V Reverse - 777 Mv 2 v 299V 3.99 V 41.94 V 4.19 V 4.95 V 41.462V 4.47 15 LR1 180 (b) to 0 I. (A) O VI Va ما کو - 5.1 UA -5.144 O 5.95 UA -5.954 of 5.152 Uk 5.759 UA -5.958 UA -5.231UA 5.96 Up - 20-NA -401.9 MA 602 na 8-3.x NA UA 105 1.05 mA 2.04 MA 3.03 MA 4.03 MA 5103 1
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