Smart power management: integrated circuits and system solutions

智能电源管理：集成电路和系统解决方案

• 批准号: 376275-2009
• 负责人: Trescases, Olivier
• 金额: $ 2.11万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=505573
• 关键词: Smart; power; management; integrated; circuits

In recent years, as the microelectronics industry struggles to stay on the path of exponential growth projected by Moore's law, energy efficiency and power-management have taken center stage. Switched-mode power supplies (SMPS) are the key enabling technology for efficiently delivering the tightly regulated supply voltages required by today's modern mixed-signal (digital+analog) integrated circuits (ICs). The SMPS acts as the interface between the energy source, such as a battery, and the load ICs. A typical SMPS uses a combination of high-quality semiconductor switches, energy storage components, sensors and control circuits to regulate one or more output voltages in the presence of disturbances. State-of-the-art SMPS have a power conversion efficiency above 90%. The resulting low heat dissipation allows multiple SMPS to be integrated with their load circuits into a single IC. The clear trend in SMPS research is toward digital control-loops, increased integration within system-on-chip (SoC) applications, higher efficiency over the full load-range and higher switching frequency, resulting in smaller energy storage components. The long-term goals of the proposed research are to make tomorrow's integrated power-supplies smarter, smaller, more efficient, more robust, and more reliable, while reducing electromagnetic interference (EMI) and environment impacts. This work will focus on high-voltage applications with particularly strict reliability standards, where system failure results in dire consequences to humans. These include automotive, aerospace, biomedical and industrial applications. In these applications, such as automotive control units for engine management or airbags, multiple power-supplies operate in harsh environmental conditions that push the limits of silicon technology. Accordingly, specialized high-voltage technologies and circuits are needed to develop tomorrow's automotive SoCs. The short-term research will be focused on circuit-level power-stage efficiency optimization, advanced packaging and hybrid-integration technologies, as well as system-level innovations.

近年来，随着微电子行业努力保持在摩尔定律所预测的指数增长的道路上，能源效率和电源管理已经占据了中心舞台。开关电源（SMPS）是有效提供当今现代混合信号（数字+模拟）集成电路（IC）所需的严格稳压电源电压的关键技术。SMPS充当能量源（例如电池）与负载IC之间的接口。典型的SMPS使用高质量半导体开关、能量存储组件、传感器和控制电路的组合来在存在干扰的情况下调节一个或多个输出电压。最先进的SMPS具有90%以上的功率转换效率。由此产生的低散热允许多个SMPS与其负载电路集成到单个IC中。SMPS研究的明显趋势是数字控制环路、片上系统（SoC）应用内的集成度提高、全负载范围内的效率提高和开关频率提高，从而导致储能元件更小。拟议研究的长期目标是使未来的集成电源更智能，更小，更高效，更强大，更可靠，同时减少电磁干扰（EMI）和环境影响。这项工作将侧重于具有特别严格的可靠性标准的高压应用，其中系统故障会给人类带来可怕的后果。这些应用包括汽车、航空航天、生物医学和工业应用。在这些应用中，例如用于发动机管理或安全气囊的汽车控制单元，多个电源在恶劣的环境条件下工作，推动了硅技术的极限。因此，需要专门的高压技术和电路来开发未来的汽车SoC。短期研究将侧重于电路级功率级效率优化、先进封装和混合集成技术以及系统级创新。