关键词: 高性能计算机, 分布式供电系统, 电压调节模块, 自适应电压定位

Abstract: To meet high efficiency, low cost and high reliability power requirements of high-performance computer system, 12V DC bus distributed power system was developed in this paper. The block diagram and operation principle of power supply for cabinet and motherboard were described. The voltage regulator module for processor in motherboard was analyzed in detail. Based on adaptive voltage position control, the small-signal model of voltage regulator module was presented, and output impedance and system control bandwidth were discussed. Following the proposed design guidelines of compensator, the experimental results demonstrate very good transient response. The application results show the proposed power supply can fully meet the power requirements of high-performance computer system.

Key words: high-performance computer, distributed power system, voltage regulator module, adaptive voltage position