The formula to calculate Emitter Efficiency (ηE) is:
\[ \eta_E = \frac{I_{nE}}{I_{nE} + I_{h}} \]
Emitter Efficiency is defined as the ratio of the electron current in the emitter, to the sum of the electron and hole current diffusing across the base-emitter junction. Electron Diffusion Current is a current in a semiconductor caused by the diffusion of charge carriers like electrons. Hole Diffusion Current is the current that flows in a semiconductor and it is caused by the diffusion of charge carriers like holes.
Let's assume the following values:
Using the formula:
\[ \eta_E = \frac{0.025}{0.025 + 0.026} \approx 0.490196078431373 \]
The Emitter Efficiency is approximately 0.490196078431373.
| Electron Diffusion Current (Ampere) | Hole Diffusion Current (Ampere) | Emitter Efficiency |
|---|---|---|
| 0.02 | 0.026 | 0.434782608695652 |
| 0.021 | 0.026 | 0.446808510638298 |
| 0.022 | 0.026 | 0.458333333333333 |
| 0.023 | 0.026 | 0.469387755102041 |
| 0.024 | 0.026 | 0.480000000000000 |
| 0.025 | 0.026 | 0.490196078431373 |
| 0.026 | 0.026 | 0.500000000000000 |
| 0.027 | 0.026 | 0.509433962264151 |
| 0.028 | 0.026 | 0.518518518518519 |
| 0.029 | 0.026 | 0.527272727272727 |