Title :
Two-stage 48 V power pod exploration for 64-bit microprocessor
Author :
Ren, Yuancheng ; Xu, Ming ; Yao, Kaiwei ; Lee, Fred C.
Author_Institution :
Center for Power Electron. Syst., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
In this paper, a new two-stage structure is proposed. For the first stage, a concept of energy transfer by the leakage inductor combined with the resonance is used to achieve a simple, high efficiency isolation stage. Application of this concept leads to the discovery of a family of simple, high efficiency DC/DC transformers. In order to achieve optimal system performance, the intermediate bus voltage is also investigated. Finally, The experimental results are provided.
Keywords :
DC-DC power convertors; computer power supplies; inductors; voltage control; voltage regulators; 48 V; 64-bit microprocessor; energy transfer; high efficiency DC/DC transformers; high efficiency isolation stage; intermediate bus voltage; leakage inductor; optimal system performance; power pod; resonance; two-stage structure; voltage regulator module; Costs; Energy consumption; Inductors; Microprocessors; Power system transients; Pulse width modulation; Switching frequency; Transformers; Voltage; Workstations;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2003. APEC '03. Eighteenth Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-7768-0
DOI :
10.1109/APEC.2003.1179248
