Lecture 3. Zener Region. As the reverse voltage increases the diode can avalanche-breakdown (zener breakdown). Zener breakdown occurs when the electric field near the junction becomes large enough to excite valence electrons directly into the conduction band and generate carriers.
Figure 1.33 Determining the ac resistance at a Q-point.
For the characteristics of Fig. 1.34:
Figure 1.34 Q-point as shown in Fig. 1.33 will define a particular change in voltage and current that can be used to determine the
Figure 1.35 determining the average ac resistance between indicated limit