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FIGURE 10-1 Crystal structure of a junction diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc.

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Presentation on theme: "FIGURE 10-1 Crystal structure of a junction diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc."— Presentation transcript:

1 FIGURE 10-1 Crystal structure of a junction diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

2 FIGURE 10-2 Semiconductor materials. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

3 FIGURE 10-3 Depletion-zone formation. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

4 FIGURE 10-4 Barrier potential of a diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

5 FIGURE 10-5 Reserve-biased diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

6 FIGURE 10-6 Reserve-biased P-N junction. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

7 FIGURE 10-7 Minority current carriers. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

8 FIGURE 10-8 Forward-biased diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

9 FIGURE 10-9 Current carrier flow in a forward-biased diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

10 FIGURE 10-10 (a)I-V characteristics of a diode; (b) diode characteristic test circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

11 FIGURE 10-11 (a) Reverse I-V characteristics of a diode; (b) reverse characteristic test circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (a)

12 FIGURE 10-11 continued (a) Reverse I-V characteristics of a diode; (b) reverse characteristic test circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (b)

13 FIGURE 10-12 Diode current-voltage characteristics. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

14 FIGURE 10-13 Silicon and germanium diode characteristics. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

15 FIGURE 10-14 Data sheet for a silicon diode. (Courtesy of Texas Instruments.) Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

16 FIGURE 10-14 continued Data sheet for a silicon diode. (Courtesy of Texas Instruments.) Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

17 FIGURE 10-15 I-V characteristics of a silicon diode at 100, 25, and-5-C. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

18 FIGURE 10-16 Diode packages: (a) low-current diodes; (b) medium-current diodes; (c) high-current diodes. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

19 FIGURE 10-16 continued Diode packages: (a) low-current diodes; (b) medium-current diodes; (c) high-current diodes. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

20 FIGURE 10-16 continued Diode packages: (a) low-current diodes; (b) medium-current diodes; (c) high-current diodes. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

21 FIGURE 10-17 Diode: (a) crystal structure; (b) symbol and element names. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

22 FIGURE 10-17 continued Diode: (a) crystal structure; (b) symbol and element names. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

23 FIGURE 10-18 Diode testing with an ohmmeter: (a) forward-bias test connection; (b) reverse-bias test connection. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

24 FIGURE 10-18 continued Diode testing with an ohmmeter: (a) forward-bias test connection; (b) reverse-bias test connection. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

25 FIGURE 10-19 Zener diode: (a) I-V characteristics; (b) test circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

26 FIGURE 10-20 Zener diode symbol and crystal structure. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

27 FIGURE 10-21 Zener diode regulator circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

28 FIGURE 10-22 Light-emitting diode: (a) symbol; (b) crystal structure; (c) transparent lens. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

29 FIGURE 10-22 continued Light-emitting diode: (a) symbol; (b) crystal structure; (c) transparent lens. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (b)

30 FIGURE 10-22 continued Light-emitting diode: (a) symbol; (b) crystal structure; (c) transparent lens. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

31 FIGURE 10-23 Seven-segment LED display. Segment forward biasing produces the number 6. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

32 FIGURE 10-24 Photovoltaic cells: (a) symbol; (b) representative cells. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

33 FIGURE 10-25 Photovoltaic cell operation. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

34 FIGURE 10-26 Photodiode: (a) construction; (b) symbol; (c) representative types. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

35 FIGURE 10-27 Photodiode characteristic: (a) reverse current-light intensity graph; and (b) its test circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

36 FIGURE 10-28 Diode capacitance values Ta = 25C Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

37 FIGURE 10-29 Varactor diode symbols. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

38 FIGURE 10-30 Varactor LC circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

39 FIGURE 10-31 Principle of thermionic emission. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

40 FIGURE 10-32 Edison effect. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

41 FIGURE 10-33 Directly heated vacuum tube. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

42 FIGURE 10-34 Indirectly heated tube. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

43 FIGURE 10-35 Operating conditions of a vacuum-tube diode: (a) forward bias; (b) reverse bias. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

44 FIGURE 10-36 Vp-Ip characteristics of a vacuum-tube diode. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

45 FIGURE 10-37 Representative vacuum-tube diodes. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.


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