电子工艺技术
電子工藝技術
전자공예기술
ELECTRONICS PROCESS TECHNOLOGY
2013年
5期
307-310
,共4页
导电聚合物%频率特性%固体钽电解电容器
導電聚閤物%頻率特性%固體鐽電解電容器
도전취합물%빈솔특성%고체단전해전용기
Conductive polymer%Frequency characteristics%Tantalum solid electrolytic capacitors
以对甲苯磺酸铁为氧化剂,采用化学氧化法在阀金属钽多孔体表面电介质层上合成了具有优异导电性能的导电聚合物聚3,4-乙烯基二氧噻吩(PEDT)。并以PEDT为阴极电解质取代传统的阴极电解质二氧化锰制备有机固体钽电解电容器,对有机固体钽电解电容器的频率及温度特性进行研究。结果表明,以PEDT为阴极电解质的钽电解电容器,其等效串联电阻(ESR)值降低至传统无机固体钽电解电容器ESR值的1/3以下,具有稳定的频率特性和温度特性,能够满足现代高频开关电源滤波电路的特殊要求。
以對甲苯磺痠鐵為氧化劑,採用化學氧化法在閥金屬鐽多孔體錶麵電介質層上閤成瞭具有優異導電性能的導電聚閤物聚3,4-乙烯基二氧噻吩(PEDT)。併以PEDT為陰極電解質取代傳統的陰極電解質二氧化錳製備有機固體鐽電解電容器,對有機固體鐽電解電容器的頻率及溫度特性進行研究。結果錶明,以PEDT為陰極電解質的鐽電解電容器,其等效串聯電阻(ESR)值降低至傳統無機固體鐽電解電容器ESR值的1/3以下,具有穩定的頻率特性和溫度特性,能夠滿足現代高頻開關電源濾波電路的特殊要求。
이대갑분광산철위양화제,채용화학양화법재벌금속단다공체표면전개질층상합성료구유우이도전성능적도전취합물취3,4-을희기이양새분(PEDT)。병이PEDT위음겁전해질취대전통적음겁전해질이양화맹제비유궤고체단전해전용기,대유궤고체단전해전용기적빈솔급온도특성진행연구。결과표명,이PEDT위음겁전해질적단전해전용기,기등효천련전조(ESR)치강저지전통무궤고체단전해전용기ESR치적1/3이하,구유은정적빈솔특성화온도특성,능구만족현대고빈개관전원려파전로적특수요구。
Ferric p-toluenesulfonate as oxidant, using chemical oxidation method, the conductive polymer poly 3,4-vinyl dioxythiophene (PEDT) with high conductive was synthesized on the surface of the dielectric layer on the valve metal tantalum porous sintered compact. And replacing the traditional manganese dioxide with the PEDT as cathode electrolyte to make organic tantalum solid electrolytic capacitors, frequency and temperature characteristics of these organic tantalum solid electrolytic capacitors were studied. The results showed that the equivalent series resistance (ESR) value of the tantalum electrolytic capacitor with PEDT as cathode electrolyte decreased to1/3 or less of traditional inorganic solid tantalum electrolytic capacitor ESR value, and have stable frequency characteristics and temperature characteristics, meet the modern high-frequency switching power supply filter circuit specific requirements.