Hybrid Digital Adaptive Control for Synchronous Buck DC-DC Converters

被引：11
作者：
Babazadeh, Amir [1 ]
Maksimovic, Dragan [1 ]
机构：
[1] Univ Colorado, Dept Elect & Comp Engn, Colorado Power Elect Ctr CoPEC, Boulder, CO 80309 USA
来源：
2008 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-10 | 2008年
关键词：
D O I：
10.1109/PESC.2008.4592104
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a hybrid digital adaptive (HDA) controller for synchronous buck DC-DC converters. The proposed controller is a combination of a standard constant-frequency PWM control in the vicinity of steady state and a bank of linear switching surface controllers (SSC) with slopes adaptively selected by a supervisor away from the reference. The supervisor selects the appropriate switching surface slope based on the capacitor current estimate and the quantized output error. A stability analysis using Lyapunov functions is presented. Experimental results for a 1.3 V, 10 A synchronous buck converter demonstrate near time optimal responses for a wide range of step load transients.
引用
收藏
页码：1263 / 1269
页数：7
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