单周控制DC/DC变换器的交流小信号模型与设计

AC Small Signal Model and Design of One-cycle Controlled DC/DC Converters

以单周控制理论为基础,介绍了基本拓扑DC/DC变换器——Buck、Boost、Buck-Boost在单周控制方式下的工作原理;建立了统一的控制方程;建立了这三种变换器在单周控制下的交流小信号模型,并给出了规范化的统一模型;以统一模型为基础,设计了一个Buck变换器。

Based on the one-cycle control theory the operation principle of one-cycle controlled basic toplolgy DC/DC converters--Buck.Boost.Buck-Boost is introduced, and the canonical control equations are proposed, too. The AC small signal models of the three converters are constructed, and the canonical model is also presented. A Buck converter is designed based on the canonical model.