figure 10-1 crystal structure of a junction diode. dale r. patrick electricity and electronics: a...

FIGURE 10-1 Crystal structure of a junction diode.

Dale R. PatrickElectricity and Electronics: A Survey, 5e

Copyright ©2002 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458

All rights reserved.

FIGURE 10-2 Semiconductor materials.




FIGURE 10-3 Depletion-zone formation.




FIGURE 10-4 Barrier potential of a diode.




FIGURE 10-5 Reserve-biased diode.




FIGURE 10-6 Reserve-biased P-N junction.




FIGURE 10-7 Minority current carriers.




FIGURE 10-8 Forward-biased diode.




FIGURE 10-9 Current carrier flow in a forward-biased diode.




FIGURE 10-10 (a)I-V characteristics of a diode; (b) diode characteristic test circuit.




FIGURE 10-11 (a) Reverse I-V characteristics of a diode; (b) reverse characteristic test circuit.




(a)

FIGURE 10-11 continued (a) Reverse I-V characteristics of a diode; (b) reverse characteristic test circuit.




(b)

FIGURE 10-12 Diode current-voltage characteristics.




FIGURE 10-13 Silicon and germanium diode characteristics.




FIGURE 10-14 Data sheet for a silicon diode. (Courtesy of Texas Instruments.)




FIGURE 10-14 continued Data sheet for a silicon diode. (Courtesy of Texas Instruments.)




FIGURE 10-15 I-V characteristics of a silicon diode at 100, 25, and-5-C.




FIGURE 10-16 Diode packages: (a) low-current diodes; (b) medium-current diodes; (c) high-current diodes.




FIGURE 10-16 continued Diode packages: (a) low-current diodes; (b) medium-current diodes; (c) high-current diodes.




FIGURE 10-17 Diode: (a) crystal structure; (b) symbol and element names.




FIGURE 10-17 continued Diode: (a) crystal structure; (b) symbol and element names.




FIGURE 10-18 Diode testing with an ohmmeter: (a) forward-bias test connection; (b) reverse-bias test connection.




FIGURE 10-18 continued Diode testing with an ohmmeter: (a) forward-bias test connection; (b) reverse-bias test connection.




FIGURE 10-19 Zener diode: (a) I-V characteristics; (b) test circuit.




FIGURE 10-20 Zener diode symbol and crystal structure.




FIGURE 10-21 Zener diode regulator circuit.




FIGURE 10-22 Light-emitting diode: (a) symbol; (b) crystal structure; (c) transparent lens.




FIGURE 10-22 continued Light-emitting diode: (a) symbol; (b) crystal structure; (c) transparent lens.




(b)

FIGURE 10-22 continued Light-emitting diode: (a) symbol; (b) crystal structure; (c) transparent lens.




FIGURE 10-23 Seven-segment LED display. Segment forward biasing produces the number 6.




FIGURE 10-24 Photovoltaic cells: (a) symbol; (b) representative cells.




FIGURE 10-25 Photovoltaic cell operation.




FIGURE 10-26 Photodiode: (a) construction; (b) symbol; (c) representative types.




FIGURE 10-27 Photodiode characteristic: (a) reverse current-light intensity graph; and (b) its test circuit.




FIGURE 10-28 Diode capacitance values Ta = 25C




FIGURE 10-29 Varactor diode symbols.




FIGURE 10-30 Varactor LC circuit.




FIGURE 10-31 Principle of thermionic emission.




FIGURE 10-32 Edison effect.




FIGURE 10-33 Directly heated vacuum tube.




FIGURE 10-34 Indirectly heated tube.




FIGURE 10-35 Operating conditions of a vacuum-tube diode: (a) forward bias; (b) reverse bias.




FIGURE 10-36 Vp-Ip characteristics of a vacuum-tube diode.




FIGURE 10-37 Representative vacuum-tube diodes.




figure 10-1 crystal structure of a junction diode. dale r. patrick electricity and electronics: a...

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