Chapter 3
Q. 3.2
Sketch the family of collector curves for the circuit in Figure 3–10 for I_{B} = 5 μA to 25 μA in 5 μA increments. Assume that β_{DC} = 100.
Step-by-Step
Verified Solution
Table 3–1 shows the calculations of I_{C} using the relationship I_{C} = \beta _{DC}I_{B} . The resulting curves are plotted in Figure 3–11 . To account for the forward Early voltage, the resulting curves are shown with an arbitrary upward slope as previously discussed.
| TABLE 3–1 | |
| I_{B} | I_{C} |
| 5 μA | 0.5 mA |
| 10 μA | 1.0 mA |
| 15 μA | 1.5 mA |
| 20 μA | 2.0 mA |
| 25 μA | 2.5 MA |
