A new PWM/PFM control technique for improving efficiency over wide load range

Chi Lin Chen*, Wei Lun Hsieh, Wei Jen Lai, Ke-Horng Chen, Ching Sung Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

27 Scopus citations

Abstract

this paper proposed a novel controlling technique of pulse width modulation (PWM) mode and pulse frequency modulation (PFM) mode to keep the high efficiency within width range of loading. The novel control method is using PWM and PFM detector to achieve two modes switching appropriately. The controlling technique can make the efficiency of current mode DC-DC buck converter up to 88% at light loading and this paper is implemented by TSMC 0.35μm CMOS process.

Original languageAmerican English
Title of host publicationProceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
PublisherIEEE
Pages962-965
Number of pages4
ISBN (Print)9781424421824
DOIs
StatePublished - 26 Dec 2008
Event15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008 - St. Julian's, Malta
Duration: 31 Aug 20083 Sep 2008

Publication series

NameProceedings of the 15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008

Conference

Conference15th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2008
CountryMalta
CitySt. Julian's
Period31/08/083/09/08

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