基于几何规划的Buck变换器设计与实现

Design and Implementation of Buck Converter Based on Geometric Programming

正确设计DC/DC变换器是一个耗时且成本高昂的过程。这里介绍了一种确定Buck变换器各组件最佳元件值、开关频率和最优运行工况的方法。首先,基于几何规划(GP)优化技术,将Buck变换器设计问题通过构建目标函数及约束条件来建模,并应用遗传算法快速有效地得到所需变量的最优解。此处构建的Buck变换器实物通过实验验证了所提Buck变换器方法的可行性与有效性,极大缩短了Buck变换器的设计周期,并保证了Buck变换器高效运行。

Properly designing a DC/DC converter is a time-consuming and costly process.A method is presented for determining the optimum component values,switching frequency and optimum operating conditions for each component of a Buck converter.Firstly,based on the geometric programming(GP)optimization technology,the Buck converter design problem is modeled by constructing the objective function and constraints,and the optimal solution of the required variables is quickly and effectively obtained by applying the genetic algorithm.The actual Buck converter constructed has verified the feasibility and effectiveness of the design method of the Buck converter through experiments,which greatly shortens the design cycle of the Buck converter and ensures the efficient operation of the Buck converter.