电容器的柔性上电技术研究
Research on Flexible Charging Technologies for Capacitors
余俊宏 1徐意婷 1陈致宇 1陶壮意 1李杨1
作者信息
- 1. 西南电子设备研究所,成都 610036;四川省高效电源变换技术工程研究中心,成都 610036
- 折叠
摘要
针对电容器的低动态阻抗特性带来的上电浪涌电流问题,提出一种具有柔性上电特性的新型电容器,有助于增强电容器应用的便捷性.本文研究了当前电容器上电浪涌电流抑制技术的局限性,设计了一种具有变阻特性的新型电路拓扑结构,通过与传统电容器进行一体化集成,使新型电容器具有了上电时高阻抗和工作时低动态阻抗的特点,并研究改造制作了一款 500 V/120 uF钽电容器.最后,实验结果显示,经改造后的电容器成功展现出上电时高阻抗、工作时低动态阻抗的特性,有效抑制了上电浪涌电流,验证了所提新型电路拓扑方案的可行性和有效性.
Abstract
Addressing the issue of inrush current caused by the low dynamic impedance of capacitors,this paper proposes a novel capacitor with flexible power-on characteristics,aimed at enhancing the convenience of capacitor applications.The study delves into the limitations of current suppression techniques for inrush current in capacitors and designs a novel circuit topology incorporating variable resistance characteristics.By integrating this topology with conventional capacitors,the novel capacitor demonstrates high impedance during power-on while maintaining low dynamic impedance during its operational phase.Furthermore,a 500 V/120 uF tantalum capacitor has been subjected to modification and fabrication in accordance with the proposed approach.Ultimately,experimental results reveal that the modified capacitor successfully exhibits the desired attributes of high impedance during power-on and low dynamic impedance during operation,effectively mitigating inrush current.These findings substantiate the feasibility and efficiency of the proposed novel circuit topology.
关键词
上电浪涌电流/变阻特性/一体集成Key words
inrush current during power-on/variable resistance characteristics/integrated design引用本文复制引用
出版年
2024
NETL
NSTL
万方数据