Title :
A novel distributed control and its tolerance analysis for microprocessor power management
Author :
Zhang, Xin ; Huang, Alex Q.
Author_Institution :
Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
To achieve higher power density and higher order of design flexibility with unlimited phase number, the concept of monolithic/modularized voltage regulator channel (MVRC) is introduced as a generic power IC solution for both CPU and POL (point of load) power management. Novel control schemes and analog circuits are proposed to implement the MVRC concept. They include: a novel distributed interleaving scheme; a distributed current sharing and adaptive voltage position (AVP) scheme. Tolerance analysis and hardware testing results verify that the proposed control is suitable for today and future´s microprocessor power management.
Keywords :
microprocessor chips; power electronics; tolerance analysis; voltage control; MVRC concept; POL power management; adaptive voltage position; analog circuits; design flexibility; distributed control; generic power IC solution; hardware testing; microprocessor power management; monolithic/modularized voltage regulator channel; tolerance analysis; unlimited phase number; Analog circuits; Central Processing Unit; Distributed control; Energy management; Load management; Microprocessors; Power integrated circuits; Regulators; Tolerance analysis; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620714
