Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31105
A Cell-Based Multiphase Interleaving Buck Converter with Bypass Capacitors

Authors: T. Taufik, R. Prasetyo, D. Dolan, D. Garinto


Today-s Voltage Regulator Modules (VRMs) face increasing design challenges as the number of transistors in microprocessors increases per Moore-s Law. These challenges have recently become even more demanding as microprocessors operate at sub voltage range at significantly high current. This paper presents a new multiphase topology with cell configuration for improved performance in low voltage and high current applications. A lab scale hardware prototype of the new topology was design and constructed. Laboratory tests were performed on the proposed converter and compared with a commercially available VRM. Results from the proposed topology exhibit improved performance compared to the commercially available counterpart.

Keywords: DC-DC converters, Voltage Regulator Modules, powerelectronics

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1781


[1] R. Miftakhutdinov, "Optimal Design of Interleaved Synchronous Buck Converter at High Slew-Rate Load Current Transients", Proceedings of Power Electronics Specialists Conference, 2001, Volume 3, June 2001 Page(s):1714 - 1718.
[2] X. Zhou, X. Zhang, J. Liu, P. Wong, J. Chen, H. Wu, L. Amoroso, F. C. Lee, and D. Chen, "Investigation of Candidate VRM Topologies for Future Microprocessors", IEEE Transactions on Power Electronics, Volume 15, Issue 6, Nov 2000 Page(s):1172 - 1182.
[3] Y. Panov, M. Jovanovic, "Design considerations for 12-V/1.5-V, 50-A voltage regulator modules". IEEE Transaction on Power Electronics, Volume 16, Issue 6, Nov. 2001 Page(s):776 - 783.
[4] X. Zhou, P. Xu, and F.C. Lee, "A High Power Density, High Frequency and Fast Transient Voltage Regulator Module with a Novel Current Sharing and Current Sharing Technique", Proceedings of IEEE APEC, 1999.
[5] P. Xu, X. Zhou, P. Wong, K. Yao, and F.C. Lee, "Design and Performance Evaluation of Multi-Channel Interleaving Quasi-Square- Wave Buck Voltage regulator Module", Proceedings of HFPC, 2000, pp. 82-88.
[6] Intel Corporation, Intel Technology Symposium, September 2001, Seattle, WA.
[7] D. Garinto, "A Novel Multiphase Multi-Interleaving Buck Converters for Future Microprocessors", Power Electronics & Motion Control Conference, Aug. 2006, Page(s):82-87.