Reduction of equivalent series inductor effect in constant on- Time control DC-DC converter without ESR compensation

Yu Huei Lee*, Wang Wei Lai, Wan Yu Pai, Ke-Horng Chen, Ming Jhe Du, Shih Hsien Cheng

*Corresponding author for this work

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

8 Scopus citations

Abstract

The proposed constant on-time control DC-DC converter removes the need of conventional equivalent series resistor (ESR) compensation and simultaneously aims to eliminate equivalent series inductor (ESL) effect of the output capacitor. Since the on-time period is set simply by input and output voltages, the switching frequency in continuous conduction mode (CCM) operation is relatively constant over a wide input voltage range. In addition, fast transient response and small transient dip voltage can be achieved. Simulation results show that the output ripple and the recovery time keep smaller than 5 mV and 10 μs, respectively, when load current step is 500 mA and ESR is smaller than 5 mω.

Original languageEnglish
Title of host publication2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
Pages753-756
Number of pages4
DOIs
StatePublished - 2 Aug 2011
Event2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011 - Rio de Janeiro, Brazil
Duration: 15 May 201118 May 2011

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
CountryBrazil
CityRio de Janeiro
Period15/05/1118/05/11

Fingerprint Dive into the research topics of 'Reduction of equivalent series inductor effect in constant on- Time control DC-DC converter without ESR compensation'. Together they form a unique fingerprint.

Cite this