Title :
Driver deadtime control and its impact on system stability of synchronous buck voltage regulator
Author :
Qiu, Weihong ; Mercer, Steven ; Liang, Zhixiang ; Miller, Greg
Author_Institution :
Intersil Corp., Milpitas, CA, USA
Abstract :
Driver dead-time control is a popular scheme in a synchronous buck voltage regulator to prevent the shoot-through issue. In addition to its impact on efficiency, dead-time control also impacts loop gain and system stability, especially under the critical load condition. In this paper, the influence of driver dead time on the synchronous buck converter is investigated, and some practical issues are analyzed and verified by experimental results.
Keywords :
DC-DC power convertors; driver circuits; voltage regulators; critical load condition; driver deadtime control; loop gain; synchronous buck converter; synchronous buck voltage regulator; system stability; Buck converters; Control systems; Diodes; Inductors; MOSFETs; Regulators; Stability; Switching frequency; Transfer functions; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620514
