標題: 94% Performance Improvement by Time-shift Control (TSC) Technique in Cloud Computing Voltage Regulator Module (VRM)
作者: Meng, Che-Hao
Su, Yi-Ping
Huang, Yu-Ping
Lee, Yu-Huei
Chen, Ke-Horng
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2013
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.
URI: http://hdl.handle.net/11536/24136
ISBN: 978-1-4673-5762-3; 978-1-4673-5760-9
ISSN: 0271-4302
期刊: 2013 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)
起始頁: 909
結束頁: 912
Appears in Collections:Conferences Paper