Title : ( A Switching Buck Converter with Dual Loop Controller and Segmented Output Stage with Improved Start-up and Transient Response )
Authors: Maryam Heshmati , Mohammad Taherzadeh-Sani ,
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Abstract
In this paper, a method is presented to improve the transient response of a buck converter. This method is based on using dual-loop voltage-mode controller along with a segmented power transistor stage. The first control loop is a conventional voltage-mode feedback using a second order delta-sigma as the control block. The second loop controls the size of the switches during the transient time. Simulation results in a 0.18-μm CMOS technology confirm that by applying this technique, outputvoltage overshoot at start-up almost disappears and settling time decreases by 50%. The output settling time during the load current steps is also improved by up to 50%.
Keywords
, buck converter; transient response; start, up; segmentation; delta sigma modulator
@inproceedings{paperid:1058726,
author = {Heshmati, Maryam and Taherzadeh-Sani, Mohammad},
title = {A Switching Buck Converter with Dual Loop Controller and Segmented Output Stage with Improved Start-up and Transient Response},
booktitle = {کنفرانس مهندسی برق ایران},
year = {2016},
location = {شیراز, IRAN},
keywords = {buck converter; transient response; start-up;
segmentation; delta sigma modulator},
}
%0 Conference Proceedings
%T A Switching Buck Converter with Dual Loop Controller and Segmented Output Stage with Improved Start-up and Transient Response
%A Heshmati, Maryam
%A Taherzadeh-Sani, Mohammad
%J کنفرانس مهندسی برق ایران
%D 2016
