6533b86cfe1ef96bd12c826b

RESEARCH PRODUCT

A new current-mode control for DC/DC converter

Giuseppe CapponiG. MariaPatrizia LivreriFilippo Marino

subject

Forward converterElectric potentialBuck converterComputer scienceFlyback converterDC-DC convertersBoost converterElectronic engineeringĆuk converterconstant on-timeVoltage regulatorInductorSignal

description

Current-sensing is used widely in smart power chips, especially in DC/DC converter for voltage regulator modules (VRM), implemented with interleaved synchronous rectifier buck converters. The interleaved technique main difficulty is due to its current-sharing control between the several modules. Besides, if the used control technique is current-mode type, it is necessary create a ramp signal proportional to current on the inductor. In this paper, a lossless current-sensing method, solving the major disadvantages of the current-mode control and implementing a current-sharing technique, is proposed. This innovative technique is tested in a two-module interleaved buck converter.

yearjournalcountryeditionlanguage
2005-09-01INTELEC 05 - Twenty-Seventh International Telecommunications Conference
https://doi.org/10.1109/intlec.2005.335115