Solid-duty-control technique for alleviating the right-half-plane zero effect in continuous conduction mode boost converters

Han Hsiang Huang*, Chi Lin Chen, Dian Rung Wu, Ke-Horng Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

This paper proposes a solid-duty-control (SDC) technique for application in boost converters to maintain a constant duty value and reduce dip voltage during load transient periods. Fast transient response was also achieved because of the variable transient enhancement controller. The proposed SDC technique can provide a stable and regulated output for edge-lit light-emitting diode backlight systems. This converter was used in a 0.25-m CMOS process. Experimental results show that compared with a conventional design without a fast transient technique, the proposed approach yields about 30 and 80 improvement in undershoot voltage and recovery time, respectively, as load current changes from 50 to 250mA.

Original languageEnglish
Article number5776687
Pages (from-to)354-361
Number of pages8
JournalIEEE Transactions on Power Electronics
Volume27
Issue number1
DOIs
StatePublished - 1 Jan 2012

Keywords

  • Adaptive off-time.
  • Alleviating skill
  • Boost converter
  • Dc-dc converter
  • Light-emitting diode (LED)
  • Right-half-plane (RHP)
  • Solid duty control
  • Valley current control

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