Technology development for DC - DC integrated point of load (POL) power supply

DC-DC集成负载点（POL）电源技术开发

• 批准号: 461335-2013
• 负责人: Liu, YanFei
• 金额: $ 5.26万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=576679
• 关键词: Technology; development; DC; integrated; point

With the exponential growth in internet / wireless applications, more and more servers (data centers, data storage, cloud storage, etc) have been built to process the ever-increasing network traffic. Non-isolated DC - DC power supplies, also known as Point of Load (POL) power supplies, are used in the motherboard to convert the bus voltage of 12V into lower level, such as 5V, 3.3V, 1.2V or even 0.6V, to provide a clean and regulated voltage to various digital integrated circuits (IC). The efficiency of the POL should be high in order to improve the system reliability and to reduce energy consumption. In order to provide more functionality to end user, small size Integrated POL has been developed to achieve high power density and high efficiency. By using integrated POL, the product development time can also be reduced. In this research project, new technologies for non-isolated DC - DC converters will be developed to achieve high efficiency and high power density that can be used for integrated POL design, as well as discrete POL design. We will analyze and design two new switching power converters that requires much smaller inductor value and therefore, can achieve much higher power density. Prototypes will be built to verify the superior performance of these new topologies. During this project, 9 Highly Qualified Personnel (HQP) will be trained and they will contribute significantly in the Canadian power supply industry. With the completion of this project, technologies will be available so that Sumida's Kingston design center can develop the next generation integrated POL product lines and to keep its leading position in the world integrated POL power supply market.

随着互联网/无线应用的指数级增长，越来越多的服务器(数据中心、数据存储、云存储等)被构建来处理不断增长的网络流量。非隔离式DC-DC电源，也称为负载点(POL)电源，在主板上用于将12V的总线电压转换为更低的电平，如5V、3.3V、1.2V甚至0.6V，以向各种数字集成电路(IC)提供干净和稳定的电压。 为了提高系统的可靠性和降低能耗，油料环的效率必须很高。为了给终端用户提供更多的功能，小尺寸集成POL已经被开发出来，以实现高功率密度和高效率。通过使用集成POL，还可以减少产品开发时间。 在这项研究项目中，将开发非隔离型DC-DC转换器的新技术，以实现高效率和高功率密度，可用于集成油膜设计和离散油膜设计。我们将分析和设计两种新的开关功率转换器，它们需要更小的电感值，因此可以实现更高的功率密度。将建立原型以验证这些新拓扑的卓越性能。在该项目期间，将培训9名高素质人员(HQP)，他们将为加拿大电力供应行业做出重大贡献。 随着该项目的完成，苏美达的金斯顿设计中心将拥有技术，以开发下一代综合油料产品线，并保持其在世界综合油料电源市场的领先地位。