Technology development of an intergrated GaN switch power module for totem-pole bridgeless boost converter

图腾柱无桥升压变换器集成氮化镓开关电源模块技术开发

• 批准号: 507049-2016
• 负责人: Liu, YanFei
• 金额: $ 3.57万
• 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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=657835
• 关键词: Technology; development; intergrated; GaN; switch

Data centers are the backbone of global economic and consume an enormous amount of energy. U.S data**centers consumed about 70 billion kilowatt-hours of electricity in 2014 and will double that amount by 2020.**An AC - DC rectifier converts the AC grid voltage to the motherboard of the data center to power the CPU,**memory, network ports, etc. It contains two stages. The first stage is the Power Factor Correction (PFC) stage**which converts the AC voltage to 400V DC and the second stage is a DC-DC converter that converts 400V to**12V. It is very important to increase the efficiency of the AC - DC Rectifier.**The existing AC - DC rectifiers use MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) were**developed 40 years ago. The performance of MOSFET has reached its theoretical limits. The new GaN switch**(Gallium Nitride) is a revolutionary advancement in power semiconductor technology and can significantly**improve the efficiency of power supplies. However, there is still a big technical gap between the existing GaN**switch based designs and the optimum designs that could be achieved by GaN switches.**This project will focus on the PFC stage of the data center rectifiers. A half-bridge GaN switch module**technology will be developed and employed in the bridgeless Boost converter to achieve 99% efficiency, which**will only dissipate less than half of the loss of the MOSFET counterpart. This will enable the data center**rectifier to meet the highest Titanium efficiency level of Energy Star 80 PLUS standard. The developed**technology can also be used in the second stage of the data center rectifiers and improve its performance.**With the completion of this project, the Toronto design center of Murata Power Solutions will be able to design**the most efficient data center power supply in the world and expand its sales volume in this market. GaN**Systems will also demonstrate the full potential of their GaN switches used in the server as well as other power**supplies. Therefore, the project will also increase the publicity and sales volume of GaN Systems.**In addition, 5 Highly-Qualified-Personnel (HQP) will be trained in this project.

数据中心是全球经济的支柱，并消耗了大量能源。 2014年，美国数据**中心消耗了约700亿千瓦时的电力，到2020年将翻一番。第一阶段是功率因数校正（PFC）阶段**，该阶段将交流电压转换为400V DC，第二阶段是将400V转换为** 12V的DC-DC转换器。提高AC-DC整流器的效率非常重要。 MOSFET的性能已达到其理论限制。新的GAN开关**（氮化炮）是电力半导体技术的革命性进步，可以显着**提高电源的效率。但是，现有的基于GAN **开关的设计与GAN开关可以实现的最佳设计之间仍然存在很大的技术差距。**该项目将重点放在数据中心整流器的PFC阶段。半桥gan开关模块**技术将在无用的助推器转换器中开发和使用，以达到99％的效率，**仅将MOSFET损失的一半耗散。这将使数据中心**整流器能够达到能量星80加标准的最高钛效率水平。开发的**技术也可以在数据中心整流器的第二阶段使用并提高其性能。 GAN **系统还将展示服务器中使用的GAN开关的全部潜力以及其他功率**供应。因此，该项目还将增加GAN系统的宣传和销量。