1. You are to design a diode clipper circuit that will keep high voltage spikes from a 'noisy' power supply from reaching sensitive electronics. A conventional silicon diode is used as part of the design. The clipper circuit is to be designed so that voltages 2 Resistor 10 volts are 'clipped'. SI Diode Vin from noisy Vout to electronics a) What would a suitable Zener breakdown voltage be? source Zener Diode b) From the manufacturer's specifications sheet, what would be a good choice for the Zener diode (i.e. what part number? 1Nxox)? Why? c) If you want to 'clip' voltages that are s-10 volts as well, show how you would modify the circuit.

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1.
You are to design a diode clipper circuit that will keep high voltage spikes from a 'noisy power supply from
reaching sensitive electronics. A conventional silicon diode is used as
part of the design. The clipper circuit is to be designed so that voltages 2
Resistor
10 volts are 'clipped'.
SI Diode
Vin from noisy
Vout to
electronics
a) What would a suitable Zener breakdown voltage be?
source
Zener Diode
b) From the manufacturer's specifications sheet, what would be a good
choice for the Zener diode (i.e. what part number? 1Nxxx)? Why?
c) If you want to 'clip' voltages that are s-10 volts as well, show how
you would modify the circuit.
Transcribed Image Text:1. You are to design a diode clipper circuit that will keep high voltage spikes from a 'noisy power supply from reaching sensitive electronics. A conventional silicon diode is used as part of the design. The clipper circuit is to be designed so that voltages 2 Resistor 10 volts are 'clipped'. SI Diode Vin from noisy Vout to electronics a) What would a suitable Zener breakdown voltage be? source Zener Diode b) From the manufacturer's specifications sheet, what would be a good choice for the Zener diode (i.e. what part number? 1Nxxx)? Why? c) If you want to 'clip' voltages that are s-10 volts as well, show how you would modify the circuit.
Electrical Characteristics ▼,- 25°C unies otherwise noted
Vz (V) @ Iz INote 1)
Leakage
Current
Max. Zener Impedance
Non-Repetitive
Peak Reverse
Test Current
Iz (mA)
Device
Zz@lz ZzK @
(2) Izk (2) (mA) (HA) (V)
IZK
IR
VR
Current
Min. Typ.
Мах.
IZSM (mA) (Note 2)
1N4728A
1N4729A
3.135
3.42
3.3
3.6
3.465
3.78
76
69
10
10
400
400
100
100
1380
1260
1
1
1
1N4730A
3.705
3.9
4.095
64
400
50
1
1190
IN4731A
4.085
4.3
4.515
58
400
1
10
1070
1N4732A
4.465
4.7
4.935
53
8
500
10
1
970
5.1
890
810
1N4733A
4.845
5.355
49
550
1
10
1
1N4734A
5.32
5.6
5.88
45
600
1
10
2
1N4735A
5.89
6.2
6.51
41
2
700
1
10
3
730
6.8
7.5
37
34
3.5
660
605
1N4736A
6.46
7.14
700
700
10
4
1N4737A
7.125
7.875
4
0.5
10
1N4738A
1N4739A
7.79
8.2
8.61
9.555
31
28
25
23
4.5
700
0.5
0.5
0.25
0.25
10
550
8.645
9.1
5
700
10
7
500
1IN4740A
1N4741A
9.5
10
10.5
7
700
10
7.6
454
11.55
12.6
10.45
11
8
700
8.4
414
1N4742A
11.4
12
21
700
0.25
9.1
380
Leakage
Current
Vz (V) @ Iz (Note 1)
Max. Zener Impedance
Non-Repetitive
Test Current
Iz (mA)
Peak Reverse
Device
Zz@lz Zzk @
IzK
IR
VR
Current
Min. Typ.
Мах.
(2) IzK (2) (mA) (µA) (V)
IzsM (mA) (Note 2)
1N4743A
12.35
14.25
13.65
15.75
13
19
10
700
0.25
0.25
9.9
344
1N4744A
15
17
14
700
11.4
304
16.8
18.9
21
1N4745A
15.2
16
15.5
16
700
0.25
12.2
285
0 25
0.25
1N4746A
17.1
19
18
20
14
20
22
750
750
13.7
15.2
250
225
1N4747A
12.5
1N4748A
23
0.25
20.9
22.8
25.65
16.7
18.2
20.6
22
23.1
11.5
10.5
750
205
1N4749A
24
25.2
28.35
25
750
0.25
0.25
190
1N4750A
27
9.5
35
750
170
1N4751A
28.5
30
31.5
34.65
8.5
7.5
40
1000
0.25
22.8
25.1
150
135
1N4752A
31.35
33
45
1000
0.25
1N4753A
34.2
37.05
40.85
36
37.8
50
60
70
80
1000
0.25
27.4
125
1N4754A
1N4755A
39
43
47
40.95
45.15
49.35
1000
1500
1500
0 25
0.25
0.25
6.5
29.7
32.7
35.8
115
110
95
1N4756A
44.65
5.5
1N4757A
48.45
51
53.55
95
1500
0.25
38.8
90
1N4758A
53.2
56
58.8
4.5
110
2000
0.25
42.6
80
55555
O55 55
5.
369m 71
285
Transcribed Image Text:Electrical Characteristics ▼,- 25°C unies otherwise noted Vz (V) @ Iz INote 1) Leakage Current Max. Zener Impedance Non-Repetitive Peak Reverse Test Current Iz (mA) Device Zz@lz ZzK @ (2) Izk (2) (mA) (HA) (V) IZK IR VR Current Min. Typ. Мах. IZSM (mA) (Note 2) 1N4728A 1N4729A 3.135 3.42 3.3 3.6 3.465 3.78 76 69 10 10 400 400 100 100 1380 1260 1 1 1 1N4730A 3.705 3.9 4.095 64 400 50 1 1190 IN4731A 4.085 4.3 4.515 58 400 1 10 1070 1N4732A 4.465 4.7 4.935 53 8 500 10 1 970 5.1 890 810 1N4733A 4.845 5.355 49 550 1 10 1 1N4734A 5.32 5.6 5.88 45 600 1 10 2 1N4735A 5.89 6.2 6.51 41 2 700 1 10 3 730 6.8 7.5 37 34 3.5 660 605 1N4736A 6.46 7.14 700 700 10 4 1N4737A 7.125 7.875 4 0.5 10 1N4738A 1N4739A 7.79 8.2 8.61 9.555 31 28 25 23 4.5 700 0.5 0.5 0.25 0.25 10 550 8.645 9.1 5 700 10 7 500 1IN4740A 1N4741A 9.5 10 10.5 7 700 10 7.6 454 11.55 12.6 10.45 11 8 700 8.4 414 1N4742A 11.4 12 21 700 0.25 9.1 380 Leakage Current Vz (V) @ Iz (Note 1) Max. Zener Impedance Non-Repetitive Test Current Iz (mA) Peak Reverse Device Zz@lz Zzk @ IzK IR VR Current Min. Typ. Мах. (2) IzK (2) (mA) (µA) (V) IzsM (mA) (Note 2) 1N4743A 12.35 14.25 13.65 15.75 13 19 10 700 0.25 0.25 9.9 344 1N4744A 15 17 14 700 11.4 304 16.8 18.9 21 1N4745A 15.2 16 15.5 16 700 0.25 12.2 285 0 25 0.25 1N4746A 17.1 19 18 20 14 20 22 750 750 13.7 15.2 250 225 1N4747A 12.5 1N4748A 23 0.25 20.9 22.8 25.65 16.7 18.2 20.6 22 23.1 11.5 10.5 750 205 1N4749A 24 25.2 28.35 25 750 0.25 0.25 190 1N4750A 27 9.5 35 750 170 1N4751A 28.5 30 31.5 34.65 8.5 7.5 40 1000 0.25 22.8 25.1 150 135 1N4752A 31.35 33 45 1000 0.25 1N4753A 34.2 37.05 40.85 36 37.8 50 60 70 80 1000 0.25 27.4 125 1N4754A 1N4755A 39 43 47 40.95 45.15 49.35 1000 1500 1500 0 25 0.25 0.25 6.5 29.7 32.7 35.8 115 110 95 1N4756A 44.65 5.5 1N4757A 48.45 51 53.55 95 1500 0.25 38.8 90 1N4758A 53.2 56 58.8 4.5 110 2000 0.25 42.6 80 55555 O55 55 5. 369m 71 285
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