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Modeling, analysis and design of fixed-frequency series-parallel resonant dc/dc converters using the extended describing function method.

机译:使用扩展描述函数方法对固定频率串并联谐振dc / dc转换器进行建模,分析和设计。

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摘要

The fixed frequency series-parallel resonant dc/dc converter is used in high current and low voltage power supplies in telecommunication applications. The frequency domain analysis technique has been the preferred method for the modeling and analysis of the converter. However, the modeling and analysis technique results in a complex set of equations from which it is difficult to establish systematic design procedure for selecting the component values of the converter.;This thesis proposes a generalized modeling, analysis and design approach of the fixed frequency series-parallel resonant dc/dc converter. A systematic approach to modeling the behavior of the converter based on extended describing function technique is presented. By employing this technique, both continuous-time large-signal and small-signal models of the converter are developed. A new set of design criterion and procedure aimed at minimizing the cost and size of the converter is developed from the large-signal model. A design example is presented to illustrate the use of the design procedure. Finally, a Pspice implementation of the converter is provided to validate the extended describing function technique.
机译:固定频率串并联谐振dc / dc转换器用于电信应用中的高电流和低压电源。频域分析技术已成为转换器建模和分析的首选方法。然而,建模和分析技术导致了一系列复杂的方程组,因此很难建立用于选择转换器分量值的系统设计程序。;本文提出了一种固定频率序列的通用建模,分析和设计方法-并联谐振DC / DC转换器。提出了一种基于扩展描述函数技术的变换器行为建模系统方法。通过采用这种技术,转换器的连续时间大信号模型和小信号模型都得到了发展。从大信号模型开发了一套旨在最小化转换器成本和尺寸的新设计准则和程序。给出了一个设计示例,以说明设计过程的用法。最后,提供了转换器的Pspice实现以验证扩展的描述功能技术。

著录项

  • 作者

    Xie, Ji.;

  • 作者单位

    Memorial University of Newfoundland (Canada).;

  • 授予单位 Memorial University of Newfoundland (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.Eng.
  • 年度 2000
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 普通生物学;
  • 关键词

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