94% Performance improvement by time-shift control (TSC) technique in cloud computing voltage regulator module (VRM)

Che Hao Meng, Yi Ping Su, Yu Ping Huang, Yu Huei Lee, Ke-Horng Chen

研究成果: Conference contribution同行評審

摘要

The time-shift control (TSC) technique for voltage regulator module (VRM) is proposed to achieve high performance power supply for servers in cloud computing. Four power stages are adopted to provide high current driving capability and low output ripple. Besides, the power request, which includes the number of active phases and voltage identification (VID), is acknowledged by servers for high driving capability during high throughput and high efficiency during standby mode. Furthermore, to equally distribute the current in each phase, the proposed TSC technique improves the current balance performance and solves the stability problem. In the scale-down clouding computing prototype, the efficiency can be kept higher than 90% over a wide load current range of 2 A. Besides, the performance and operating frequency of the servers in stable operation are not limited by the VRM with the TSC.

原文English
主出版物標題2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
頁面909-912
頁數4
DOIs
出版狀態Published - 9 九月 2013
事件2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 - Beijing, China
持續時間: 19 五月 201323 五月 2013

出版系列

名字Proceedings - IEEE International Symposium on Circuits and Systems
ISSN(列印)0271-4310

Conference

Conference2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
國家/地區China
城市Beijing
期間19/05/1323/05/13

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