A 25 Mbps 15 ns 传播延迟 150 kV/μs CMTI 可配置双通道电容数字隔离驱动器
Yuan Zhao1,2, Liang Wang2, Zhifeng Chen1
1School of Opto-Electronic and Communication Engineering, Xiamen University of Technology, Xiamen 361024, China.
Micromachines
|July 27, 2024
概括
本研究引入了一种新的电容数字隔离器,用于高效的电源供应. 它提供高常态暂时免疫 (CMTI) 和25 Mbps的数据速率,在苛刻的环境中提高系统可靠性.
科学领域:
- 电气工程 电气工程
- 半导体设备 半导体设备
- 电力电子 电力电子 电力电子
背景情况:
- 电气隔离对于电子系统的可靠性至关重要,特别是在恶劣的条件下.
- 数字隔离器在低功耗电路中普遍存在,因为它们具有干扰免疫力.
- 高效的电源需要强大的隔离解决方案,能够提供高数据速率和短暂的免疫力.
研究的目的:
- 提出一种新的电容数字隔离器架构.
- 为了实现电源应用的高常态暂时免疫 (CMTI) 和高数据传输速率.
- 为了提高驱动能力并减少数字隔离器的传播延迟.
主要方法:
- 使用开启-关闭键 (OOK) 调制来实现高速,准确的信号传输.
- 开发一个完全集成的高压水平转移驱动器,具有纳米秒级延迟.
- 使用Cadence IC 6.1.7与标准0.18μm CMOS工艺实现和模拟拟拟议的架构.
主要成果:
- 实现了25 Mbps的数据传输速度.
- 显示出典型的传播延迟为15 ns.
- 发现常态暂时免疫 (CMTI) 超过150kV/μs.
- 获得了2A和4A的输出峰值电流.
结论:
- 拟议的电容数字隔离器有效地满足了高效电源供应场景的需求.
- 与现有解决方案相比,该设计在CMTI和数据传输速度方面取得了显著改善.
- 这种架构适用于需要在恶劣的电气条件下可靠运行的应用.
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