Title :
High Power Density Voltage Divider and Its Application in Two-Stage Server VR
Author :
Sun, Julu ; Xu, Ming ; Lee, Fred C. ; Ying, Yucheng
Author_Institution :
Virginia Polytech. Inst. & State Univ., Blacksburg
Abstract :
This paper starts with the two-stage Voltage-Regulator (VR) solution for future server microprocessors. By using two-stage solution, high efficiency and high power density VR can be put as close as the microprocessor to eliminate the interconnection effect. Then, high efficiency high power density voltage divider which is served as the 1st stage is analyzed and optimal design is illustrated. Finally, a 2500 W/in3 interleaved voltage divider with 97~98% efficiency is experimentally verified.
Keywords :
computer power supplies; microprocessor chips; power convertors; power electronics; voltage dividers; voltage regulators; buck convertor; high-power density voltage divider; interleaved voltage divider; server microprocessors; two-stage server voltage-regulator; Capacitors; Connectors; Inductors; Microprocessors; Power electronics; Power system interconnection; Sockets; Sun; Virtual reality; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-0654-8
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2007.4342287
