智算中心电力系统通信电源电路优化设计研究  

Study on the Optimal Design of the Communication Power Supply Circuit of the Power System of the Intelligent Computing Center

作　　者：董志强 DONG Zhiqiang(Shanghai Post&Telecommunications Design and Consulting Institute Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]上海邮电设计咨询研究院有限公司,上海200092

出　　处：《通信电源技术》2024年第17期95-97,共3页Telecom Power Technology

摘　　要：受智算中心电力系统实际传输效率的影响,通信电源对应的增益裕度存在无法满足实际需求的情况,因此提出智算中心电力系统通信电源电路优化设计。在印制电路板(Printed Circuit Board,PCB)布局设计阶段,将MSM8909主芯片和PM8916电源管理芯片置于PCB板的中心,构建扇形布局结构;在层叠设计阶段,以相邻走线层间干扰最小化为核心,设计每个高速信号层紧邻一个参考地平面层;在布线设计阶段,针对通信过程中的高速信号,进行严格的隔离接地处理与阻抗控制。结果显示,设计的电源电路在不同通信频率下的增益裕度能够满足实际需求。Affected by the actual transmission efficiency of the power system in the intelligent computing center,the gain margin corresponding to the communication power supply can not meet the actual demand,so the optimal design of the communication power supply circuit in the intelligent computing center power system is proposed.In the layout design stage of Printed Circuit Board(PCB),MSM8909 main chip and PM8916 power management chip are placed in the center of PCB,and the fan layout structure is constructed.In the cascade design stage,each high-speed signal layer is designed to be adjacent to a reference ground plane layer with the minimum interference between adjacent trace layers as the core;In the wiring design stage,strict grounding processing and impedance control are carried out for high-speed signals in the communication process.The test results show that the gain margin of the designed power supply circuit under different communication frequencies can meet the actual requirements.

关 键 词：智算中心 电力系统 印制电路板(PCB) 

分 类 号：TN86[电子电信—信息与通信工程]