Improving loading and unloading transient response of a voltage regulator module using a load-side auxiliary gyrator circuit

Or Kirshenboim, Alon Cervera, Mor Mordechai Peretz

Research output: Contribution to conferencePaperpeer-review

4 Scopus citations

Abstract

This paper introduces a new voltage regulator module (VRM) that hybrids a highly efficient switched-inductor converter as the main unit with a loadside switched-capacitor based converter to assist during load transient events. The resulting hybrid-VRM exhibits improved dynamic performance for both loading and unloading transient events, while maintaining a compact design with reduced stress of the components. The hybrid controller that has been developed allows operation based on output voltage measurement alone, further reducing the circuit complexity. The operation of the VRM is verified on a 30W, 12V-to-1.5V prototype, demonstrating a near-ideal transient recovery.

Original languageEnglish GB
Pages913-920
Number of pages8
DOIs
StatePublished - 8 May 2015
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: 15 Mar 201519 Mar 2015

Conference

Conference30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Country/TerritoryUnited States
CityCharlotte
Period15/03/1519/03/15

Keywords

  • Voltage regulation module
  • auxiliary circuit
  • digital control
  • improved transient-response
  • optimal control
  • switch-mode power supply

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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