Voltage regulation of a series-stacked system of processors by differential power processing

Dipanjan Das, Philip T. Krein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Series-connected power delivery architectures have been shown to radically improve efficiencies for power delivery to servers and digital circuits. This paper investigates the element-to-element differential power processing topology. An average model for the series-stacked system with voltage regulating converters is proposed to aid in the closed-loop control design. Voltage regulation of the stack is simulated with a conventional 2-pole, 2-zero compensation scheme. Limitations regarding the number of cores that can be stacked in series and possible ways to overcome the limitations are also discussed. A modification to the element-to-element topology which improves transient response of the system is also suggested.

Original languageEnglish (US)
Title of host publication2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467368476
DOIs
StatePublished - Sep 1 2015
Event16th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2015 - Vancouver, Canada
Duration: Jul 12 2015Jul 15 2015

Publication series

Name2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015

Other

Other16th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2015
CountryCanada
CityVancouver
Period7/12/157/15/15

Keywords

  • Differential power processing
  • Series-stacking
  • Voltage regulation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Modeling and Simulation

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    Das, D., & Krein, P. T. (2015). Voltage regulation of a series-stacked system of processors by differential power processing. In 2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015 [7236445] (2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMPEL.2015.7236445