作为可见光通信高亮度LED驱动器的双输入Buck转换器的性能评估,基于分割功率的LED驱动器
Daniel G Aller1, Diego G Lamar2, Juan R García-Mere2
1Airbus Crisa (an Airbus Defense and Space Company), 28760 Madrid, Spain.
Sensors (Basel, Switzerland)
|October 16, 2024
概括
这项研究介绍了使用双输入巴克 (TIBuck) 转换器在可见光通信 (VLC) 中使用高亮度发光二极管 (HB-LED) 的新型驱动器. 这种高效的设计简化了HB-LED和通信任务的功率分割,实现了高数据速率.
科学领域:
- 电气工程 电气工程
- 光学通信是指光学通信.
- 电力电子 电力电子 电力电子
背景情况:
- 可见光通信 (VLC) 系统需要高亮度发光二极管 (HB-LED) 的高效驱动器.
- 现有的VLC驱动器经常使用复杂的功率分割技术,使用多个直流/直流转换器,有时需要电磁隔离.
- 这些方法可以导致效率降低和HB-LED驱动器设计的复杂性增加.
研究的目的:
- 为VLC应用提供高效的HB-LED驱动程序.
- 为了简化VLC系统的权力分割架构.
- 与现有的基于Buck转换器的解决方案相比,提高通信能力和效率.
主要方法:
- 在HB-LED驱动器设计中采用了双输入巴克 (TIBuck) DC/DC转换器拓.
- 拟议的方法通过利用TIBuck转换器用于自然电力分割,避免了隔离的要求.
- 在低频率工作的辅助巴克直流/直流转换器产生必要的二次电压源.
主要成果:
- 实验原型实现了94%的高效率.
- 驱动程序成功地复制了一个64-QAM数字调制方案.
- 实现了1.5 Mbps的比特速率,通信错误率为12%.
结论:
- TIBuck直流/直流转换器为VLC系统中的HB-LED驱动器提供了一种简化和高效的解决方案.
- 拟议的驱动器克服了以往分发功率技术的隔离缺点.
- 该设计允许高频操作,以提高通信性能和减少过需求.
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