ZHCUBL4B December 2023 – February 2026
图 4-3 和表 4-3 展示了在 400V 直流链路输出时,在升压模式下运行的双向直流/直流转换器的效率。所考虑的输入电池电压为 80V、160V、240V 和 320V,该表显示转换器可分别实现 97.4%、98.7%、99.2% 和 99.4% 的峰值效率。
| 输出功率 | Vbat = 80V 时的效率 | 输出功率 | Vbat = 160V 时的效率 | 输出功率 | Vbat = 240V 时的效率 | 输出功率 | Vbat = 320V 时的效率 |
|---|---|---|---|---|---|---|---|
| 0.1kW | 93.9% | 0.3kW | 96.9% | 0.7kW | 98.4% | 1.0kW | 99.1% |
| 0.3kW | 96.2% | 0.6kW | 98.1% | 1.2kW | 99.0% | 1.6kW | 99.3% |
| 0.4kW | 96.8% | 0.9kW | 98.6% | 1.7kW | 99.2% | 2.2kW | 99.3% |
| 0.6kW | 96.9% | 1.2kW | 98.6% | 2.1kW | 99.2% | 2.9kW | 99.3% |
| 0.7kW | 97.1% | 1.5kW | 98.7% | 2.6kW | 99.1% | 3.5kW | 99.3% |
| 0.9kW | 97.2% | 1.8kW | 98.6% | 3.1kW | 99.1% | 4.1kW | 99.4% |
| 1.0kW | 97.4% | 2.1kW | 98.6% | 3.5kW | 99.1% | 4.7kW | 99.3% |
| 1.1kW | 97.4% | 2.4kW | 98.6% | 4.0kW | 99.1% | 5.3kW | 99.3% |
| 1.3kW | 97.3% | 2.7kW | 98.6% | 4.5kW | 99.1% | 5.9kW | 99.3% |
| 1.4kW | 97.3% | 3.0kW | 98.6% | 4.9kW | 99.1% | 6.5kW | 99.2% |
| 1.5kW | 97.3% | 3.3kW | 98.5% | 5.4kW | 99.0% | 7.2kW | 99.3% |
| 1.7kW | 97.2% | 3.6kW | 98.5% | 5.8kW | 98.9% |
7.5kW |
99.3% |
| 1.9kW | 97.1% | 3.9kW | 98.5% | 6.3kW | 99.0% |
7.8kW |
99.2% |
| 1.9kW | 96.9% | 4.2kW | 98.4% | 6.7kW | 98.9% | ||
| 2.1kW | 96.6% |
4.4kW |
98.3% |
升压模式的结果与降压模式的结果类似,但低功率时的损耗更高,效率也更低。这是由于升压运行以及 GaN FET 在升压到更高电压时的更高损耗所致。