氙灯电容器充电分析和充电时间估算

电容器充电器广泛用于使用氙气管的照相闪光灯,医疗应用和脉冲激光器。这些类型的电源使用低功率电源工作,以提供脉冲式高压大电流输出。通常,以非连续传导模式工作的反激式DC-DC转换器用于给大容量电容器充电。对输出大容量电容器充电所需的时间和输入平均电流是最重要的参数。文章提出了一种用于电容器充电器的数学模型,以根据各种系统参数来估计所需的充电时间,设计了一个基于Excel和vb的工具,以估算在给定操作条件下为输出电容器充电所需的时间,文章介绍了仿真,实验和模型结果。

Capacitor chargers are widely used in photographic flash lamps using xenon tubes,medical applications and pulsed lasers.These types of power supplies work with low-power power supplies to provide pulsed high-voltage and high-current output.In general,flyback DC-DC converters operating in discontinuous conduction mode are used to charge large capacity capacitors.The time required to charge the output capacitor and the input average current are the most important parameters.In this paper,a mathematical model for capacitor charger is proposed to estimate the charging time according to various system parameters,and a tool based on Excel and VB is designed to estimate the time needed to charge the output capacitor under given operating conditions.The results of simulation,experiment and model are introduced in this paper.