适用于未来直接使用高压直流电源的服务器主板的电源转换解决方案.pdf

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1、Dr.Gerald DeboyInfineon Technologies Austria AGPower Conversion Solutions for future Server Boards operating directly from HV DCPower Conversion Solutions for future Server Boards operating directly from HV DCDr.Gerald DeboySERVER:AI HW SW CO-DESIGN/NIC/HPCFuture Central HV DC architectureServerboar

2、dHallInfrastructureRow/IT rackeFuse and Hot-Swap functionality is key for Server boards operating on HV DCThe SiC JFET is the technology of choicea)Device concept b)SOA diagram c)Transconductance d)Equivalent circuitExperimental validation of hot-plug to 800V800V-to-54V power conversion:stacked conv

3、erter cells vs 3-L modulation Three revisions of ultra-compact DCX convertersSyncRec with GaNSyncRec with Si800V-to-12V conversion:topology choicesa)3-L stacked Half-Bridge DCx,b)ISOP Full-Bridge DCx,c)ISOP Half-Bridge DCx800V-to-12V:Board layout and efficiency130 mm40 mmFuture Server boards will op

4、erate on a HV DC bus.eFuse/Hot-plug/Dis-charge functionality can be integrated on Board.Ultra-compact power conversion from 800V to 54V&12V has been demonstrated.Converters operate close to 1 MHz using GaN technology and achieve outstanding full load efficiencies of 98%(800V-to-54V)and 97%(800V-to-1

5、2V)respectively.Infineon Technologies is focusing on safety aspects and covering all power conversion steps from Grid to Core.Call for Action:We encourage OCP to set standards for power conversion for HV DC architectures.Infineon Technologies is supporting these efforts with its expertise in systems and power technologies.SummaryThank You!