An improved topology of inductor-switching DC-DC converter

An improved version of an inductor-switching fast-response dc-dc converter is presented that will provide the requirements and features of the new generation of microprocessor and digital systems. Lower output voltage, higher output current, and smaller output voltage ripple requirements have greatly increased the difficulty of the power supply design. To further increase the problem, power-saving "stop-clock" modes of the microprocessor has demanded faster and more stable transient response from the dc-dc converter. A novel method of inductor switching is applied to a dc-dc converter, and it provides the prominent features of current amplification and absorption during the heavy burden of load transients. The design and simulation of the concept is verified by experiment with a 12-V input and 3.3-V/30-A output converter.

[1]  Gordon E. Moore,et al.  Progress in digital integrated electronics , 1975 .

[2]  Seth R. Sanders,et al.  An active clamp circuit for voltage regulation module (VRM) applications , 2001 .

[3]  Fred C. Lee,et al.  Single shot transient suppressor (SSTS) for high current high slew rate microprocessor , 1999, APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285).

[4]  F. C. Lee,et al.  VRM transient study and output filter design for future processors , 1998, IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).

[5]  Peng Xu,et al.  Investigation of candidate VRM topologies for future microprocessors , 2000 .

[6]  Peng Xu,et al.  Integrated planar inductor scheme for multi-module interleaved quasi-square-wave (QSW) DC/DC converter , 1999, 30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321).

[7]  Antonio Testa,et al.  A new VRM topology for next generation microprocessors , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[8]  Peng Xu,et al.  Investigating coupling inductors in the interleaving QSW VRM , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[9]  F. C. Lee,et al.  A family of novel interleaved DC/DC converters for low-voltage high-current voltage regulator module applications , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[10]  T. Ninomiya,et al.  Fast-response load regulation of DC-DC converter by inductor-switching high current path , 2002, 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering. TENCOM '02. Proceedings..

[11]  Milan M. Jovanovic,et al.  Analysis and evaluation of interleaving techniques in forward converters , 1998 .