Research on Flexible Charging Technologies for Capacitors
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.
inrush current during power-onvariable resistance characteristicsintegrated design
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