Title :
Design of multi-phase DC-DC converter with master-slave current sharing control
Author :
Guo, Guoyong ; Shi, Bingxue
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
A novel multi-phase PWM DC-DC converter is designed, in order to solve the problem of meeting the power supply requirements of the new generation microprocessor which requires 40-100 A currents, lower voltage and better current transient response. In multi-phase converter, how to balance the currents in each phase is most important, and master-slave current sharing is an effective way. The multi-phase converter, by distributing the power and load current results in smaller and lower cost transistor with fewer input and output capacitors. It meets the specifications of Intel´s VRM9.0 design guideline for the power supply of high-performance Pentium IV central processing units.
Keywords :
DC-DC power convertors; PWM power convertors; computer power supplies; electric current control; transient response; 40 to 100 A; Intel VRM9.0 design guideline; Pentium IV central processing units; current transient response; currents balancing; input capacitors; load current distribution; master-slave current sharing control; microprocessor power supply; multi-phase DC-DC converter; multi-phase converter; output capacitors; power distribution; power supply requirements; Costs; DC-DC power converters; Master-slave; Microprocessors; Power generation; Power supplies; Pulse width modulation; Pulse width modulation converters; Transient response; Voltage;
Conference_Titel :
TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering
Print_ISBN :
0-7803-7490-8
DOI :
10.1109/TENCON.2002.1182730
