Investigation into PCB Routing Loss for Coupled Inductor Based VR (Voltage Regulator) Design in Server Computing System - Energy and Power Engineering

EPE > Vol.9 No.4, April 2017

Investigation into PCB Routing Loss for Coupled Inductor Based VR (Voltage Regulator) Design in Server Computing System ()

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Download as PDF (Size: 452KB) PP. 464-474

DOI: 10.4236/epe.2017.94B052 2,839 Downloads 3,853 Views

Author(s)

Xiaoguo Liang¹, Jinsong Zhu¹, Yinghua Ye¹, Yuan-Liang Li²

Affiliation(s)

¹Data Center Group in Intel Asia Pacific Research and Development Ltd., Shanghai, China.
²Date Center Group in Intel Microelectronics Asia LLC, Taiwan Branch, Taipei city.

ABSTRACT

Coupled inductor is one appealing technology to improve transient response and reduce output decoupling significantly in interleaved multi-phase voltage regulators (VRs). One well known problem is that coupled inductor winding structure causes PCB routing path longer than discrete inductor design. This paper investigates possible PCB routing schemes for coupled inductor and conducts a fair and quantitative comparison with discrete inductor in a server VR design. Simulation and measurement are also conducted to verify the analysis.

KEYWORDS

PCB Routing Loss, Coupled Inductor, Voltage Regulator (VR), Server

Share and Cite:

Liang, X. , Zhu, J. , Ye, Y. and Li, Y. (2017) Investigation into PCB Routing Loss for Coupled Inductor Based VR (Voltage Regulator) Design in Server Computing System. Energy and Power Engineering, 9, 464-474. doi: 10.4236/epe.2017.94B052.

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