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

页码：1263 / 1269

页数：7

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