ZHDU176A July 2026 – August 2026
3.15 PFC 测试结果：效率（仅限具有外部 Vcc 的 PFC）
本节展示了在向 PFC 提供 15V 外部偏置电压时的 PFC 级效率，且在计算各工作点的效率时已将功耗（例如，Vcc × I_Vcc）考虑在内。下表显示了 115VAC 和 60Hz 以及 230VAC 和 50Hz 条件下的前端 PFC 效率。
| VIN 和 Fline | PIN (W) | Vout(V) | Iout (A) | POUT (W) | 效率 |
|---|---|---|---|---|---|
| 115VAC 和 60Hz | 3.273 | 390.3 | 0.008 | 3.111 | 94.19% |
| 115VAC 和 60Hz | 10.483 | 390.4 | 0.026 | 9.963 | 95.04% |
| 115VAC 和 60Hz | 21.075 | 391.1 | 0.051 | 20.126 | 95.50% |
| 115VAC 和 60Hz | 31.406 | 390 | 0.077 | 29.956 | 95.38% |
| 115VAC 和 60Hz | 41.315 | 385.8 | 0.103 | 39.626 | 95.91% |
| 115VAC 和 60Hz | 51.992 | 387.1 | 0.129 | 49.948 | 96.07% |
| 115VAC 和 60Hz | 61.257 | 380.6 | 0.155 | 58.909 | 96.17% |
| 115VAC 和 60Hz | 71.763 | 382.5 | 0.181 | 69.076 | 96.26% |
| 115VAC 和 60Hz | 81.864 | 380.4 | 0.207 | 78.815 | 96.28% |
| 115VAC 和 60Hz | 94.327 | 379.2 | 0.239 | 90.629 | 96.08% |
| 115VAC 和 60Hz | 104.839 | 378.4 | 0.266 | 100.654 | 96.01% |
| 115VAC 和 60Hz | 114.869 | 377.6 | 0.292 | 110.259 | 95.99% |
| 115VAC 和 60Hz | 125.244 | 376.9 | 0.318 | 119.854 | 95.70% |
| 115VAC 和 60Hz | 135.382 | 376.4 | 0.347 | 130.611 | 95.77% |
| 230VAC 和 50Hz | 3.238 | 390 | 0.008 | 3.026 | 93.01% |
| 230VAC 和 50Hz | 10.761 | 390.2 | 0.027 | 10.352 | 96.06% |
| 230VAC 和 50Hz | 20.675 | 390.2 | 0.051 | 19.916 | 96.19% |
| 230VAC 和 50Hz | 30.980 | 390.5 | 0.077 | 29.971 | 96.65% |
| 230VAC 和 50Hz | 41.318 | 391.3 | 0.102 | 40.093 | 96.93% |
| 230VAC 和 50Hz | 51.273 | 391.3 | 0.127 | 49.781 | 97.01% |
| 230VAC 和 50Hz | 61.579 | 391.1 | 0.153 | 59.827 | 97.08% |
| 230VAC 和 50Hz | 72.130 | 390.1 | 0.180 | 70.124 | 97.16% |
| 230VAC 和 50Hz | 83.268 | 386.9 | 0.209 | 80.986 | 97.19% |
| 230VAC 和 50Hz | 93.290 | 382.4 | 0.238 | 91.011 | 97.49% |
| 230VAC 和 50Hz | 103.479 | 380.4 | 0.265 | 100.806 | 97.28% |
| 230VAC 和 50Hz | 113.479 | 378.7 | 0.292 | 110.580 | 97.39% |
| 230VAC 和 50Hz | 123.912 | 376.5 | 0.321 | 120.857 | 97.49% |
| 230VAC 和 50Hz | 133.826 | 374.3 | 0.348 | 130.256 | 97.29% |
效率曲线：
图 3-99 外部 Vcc = 15V 时前端 PFC 的效率曲线