STTR Phase I: Tuned Miniaturized Point-Field Detectors as Contactless Current Sensor for Post-silicon Power Electronics

STTR 第一阶段：调谐小型化点场检测器作为后硅电力电子器件的非接触式电流传感器

• 批准号: 1843330
• 负责人: Babak Parkhideh
• 金额: $ 22.5万
• 依托单位: Telli Technologies Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-02-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1843330&HistoricalAwards=false
• 关键词: STTR; Phase; Tuned; Miniaturized; Point

The broader impact/commercial potential of this project is to introduce a fully integrated current sensor with an order of magnitude performance improvement over state-of-the-art technologies. The developed technology will enable more reliable, efficient and compact power electronics systems. Power electronics is an integral part of today's power delivery systems such as renewable energy systems, electric vehicles, data centers and most consumer electronics. In these applications, electric current information is often an essential parameter that needs to be known and measured for control, diagnostic and prognostic purposes. With advances in power electronic circuits with specific attention to high frequency power converters, there is a need to investigate alternative approaches and techniques to measure the current. These approaches should result in availability of current sensors that have fast-response, are accurate, loss-less, and preferably non-intrusive. The impact of such a sensor is to enable systems and circuits that will be miniaturized and be made more efficient by using wide bandgap semiconductors and high switching frequencies. Additionally, the availability of current measurement information will lead to greater reliability and prognostic capability. Applications include but are not limited to power converters in electric vehicles and data centers.This Small Business Technology Transfer Phase I project seeks to demonstrate the feasibility of a novel contactless, hybrid current sensor offering an order of magnitude better performance than the state-of-the-art in capturing currents up to and beyond 30 MHz for use in emerging high-frequency power converter applications utilizing wide bandgap semiconductors. The proposed sensor combines complementary magnetoresisor and Rogowski coil technology along with magnetic concentrators into a single chip. By combining these previously underexplored technologies in discrete current sensing would result in a non-invasive, lossless current sensor for MHz converters, where today none exists. Phase I objectives will address technical challenges in developing a chip-scale integrated sensor, including miniaturized Rogowski coil design and magnetic concentrator shape and material evaluation for signal amplification and electromagnetic interference rejection. Design of the analog signal conditioning circuits required for the integrated circuits are also part of this phase.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目更广泛的影响/商业潜力是引入一种完全集成的电流传感器，其性能比最先进的技术提高了一个数量级。所开发的技术将使电力电子系统更加可靠、高效和紧凑。电力电子是当今电力输送系统（例如可再生能源系统、电动汽车、数据中心和大多数消费电子产品）不可或缺的一部分。在这些应用中，电流信息通常是一个重要参数，需要了解和测量以用于控制、诊断和预测目的。随着电力电子电路的进步，尤其是高频电力转换器，有必要研究测量电流的替代方法和技术。这些方法应该能够提供具有快速响应、准确、无损且最好是非侵入性的电流传感器。这种传感器的影响是通过使用宽带隙半导体和高开关频率使系统和电路小型化并提高效率。此外，当前测量信息的可用性将带来更高的可靠性和预测能力。应用包括但不限于电动汽车和数据中心中的电源转换器。这个小型企业技术转让第一阶段项目旨在证明新型非接触式混合电流传感器的可行性，其性能比现有技术好一个数量级。捕获高达 30 MHz 及以上电流的先进技术，可用于利用宽带隙半导体的新兴高频电源转换器应用。所提出的传感器将互补磁阻和罗氏线圈技术以及聚磁器结合到单个芯片中。通过将这些先前未充分探索的技术结合到离散电流感测中，将产生一种用于 MHz 转换器的非侵入式无损电流传感器，而目前尚不存在这种传感器。第一阶段的目标将解决开发芯片级集成传感器的技术挑战，包括小型化罗戈夫斯基线圈设计以及用于信号放大和电磁干扰抑制的磁集中器形状和材料评估。集成电路所需的模拟信号调理电路的设计也是此阶段的一部分。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。