一个13.56MHz的93.5%效率最佳的开/关时间跟踪主动校正器,具有基于数字反的自适应延迟控制
IEEE transactions on biomedical circuits and systems
|September 11, 2024
概括
这种自适应式主动整流器使用数字反延迟控制器 (DFDC) 来快速优化开/关时间,在不同条件下提高功率转换效率 (PCE) 和电压转换比率 (VCR).
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 集成电路设计 集成电路设计
背景情况:
- 活性整流器对于高效的功率转换至关重要.
- 传统设计面临着输入电压和负载变化的挑战.
- 优化切换时间是提高性能的关键.
研究的目的:
- 提供一个具有数字反延迟控制器 (DFDC) 的自适应性主动整流器.
- 为了改善对动态操作条件的最佳启/关时间的跟踪.
- 为了提高电压转换比率 (VCR) 和功率转换效率 (PCE).
主要方法:
- 采用动态控制的粗细延迟线,而不是静态的比较器.
- 实现了一种带宽为13.56MHz的双循环数字反系统.
- 集成实时节能模式控制以最大限度地减少动态功率损失.
主要成果:
- 达到93.5%的峰值功率转换效率 (PCE).
- 达到了96.3%的峰值电压转换比率 (VCR).
- 在输入电压 (1.7-2.6V) 和负载范围 (0.33-2.2kΩ) 中证明有效运行.
结论:
- 拟议的带有DFDC的自适应式主动整流器有效优化了切换时间.
- 该设计在PCE和VCR中提供了显著的改进.
- 该系统可实现高效的功率管理和减少动态功率损失.
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