Simple Low-Cost Hysteretic Controller for Multiphase Synchronous Buck Converters

被引:16
作者
Borrell, Angel [1 ]
Castilla, Miguel [2 ]
Miret, Jaume [2 ]
Matas, Jose [2 ]
Garcia de Vicuna, Luis [2 ]
机构
[1] Autonomous Univ Barcelona, Dept Elect Engn, Escola Univ Salesiana de Sarria, Barcelona 08017, Spain
[2] Tech Univ Catalonia, Dept Elect Engn, Barcelona 08800, Spain
关键词
Computer power supplies; current sharing; design methodology; interleaving; multiphase hysteretic control; voltage regulator; DESIGN;
D O I
10.1109/TIE.2010.2060462
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents a novel hysteretic controller for a multiphase synchronous buck converter supplying low voltage, high current, and high slew-rate loads. The control scheme implements the main control functions for powering such demanding loads, including output-voltage regulation, adaptive voltage positioning, current sharing, and phase interleaving. This paper also describes a control-design methodology based on output-impedance analysis. This design leads to optimal output-voltage transient response with a simple and low-cost control implementation. Simulation and experimental results are reported in order to validate the features of the novel control scheme.
引用
收藏
页码:2355 / 2365
页数:11
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