【选型】为保证LED驱动电源寿命首选固态电容器,使用7000个小时都不会有任何异常
相关的检测机构得到证实,当前LED灯具用户90%以上的故障均是由LED驱动电源引起的。因此“如何解决驱动电源的寿命问题”在当前情形下,显得非常关键。因为只要解决了电源的寿命问题,LED照明灯具的寿命难题也将不复存在。本文东佳电子力荐固态电容器用于LED驱动电源中,具体内容如下。
电容成电源寿命杀手
在整个LED照明行业,基本上所有的工程师都会认为,LED整灯的寿命取决于驱动电源,而驱动电源的短板则是在其内置的电容上面。电容是电源产品中所有元器件中寿命最短的,这属于寿命木桶效应中的“短板”。
目前,驱动电源里的电容类型分为很多种,其中主要包括电解电容、贴片电容以及瓷片电容,但影响寿命的主要因素在于电解电容。除此之外,驱动电源中还存在多种电容,例如钽电容、固态电容等,但目前大多数驱动电源产品均无法离开电解电容。
这和电容的特殊结构紧密相关,因为电解电容属于传统液态电容器,它是用液体作为导电物质,所以在使用过程中,随着导电液的逐步挥发和消耗,电解电容的寿命将会慢慢走向衰竭。而导电液在长時间高温状态会逐步干枯,从而造成寿命短的问题。
液态电容由于摆脱不了受热膨胀的物理特性,因此会存在着漏液的危险现象。此外,液态电容在严酷的环境下,电容器性能会受到影响,在高温情况下,它的寿命会快速缩短,在极低温条件下,液态电容会存在短板,如活性会变弱,电气性能也会减弱。就目前整体市场情况看来,对电源寿命起决定性影响的仍是”电解电容”。
固态电容成为首选
要想保证驱动电源的长寿命,首先要解决电容的问题。既然液态电容存在着诸多的劣势,那么选择固态电容就成为了最好的选择。固态电容依靠固体导电聚合物作为电解质导电,其导电机理是依靠电子进行导电,导电性更优、综合性能优越,而且不会有电解液漏出来,安全且寿命长。”
采用固态电容后,电源寿命短板将不再取决于电容,因为固态电容在125℃情况下,通过相关实验测试,7000个小时都不会有任何异常,理论寿命是非常长的。据悉,固态电容器的寿命计算公式是,温度每降低20℃,寿命提高10倍,而传统的液态电容器,温度每降低10℃,寿命仅仅提高2倍。因此,将固态电容器应用于LED驱动电源中,理论寿命基本上可以说是无穷的。
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本文由犀牛先生转载自东佳电子,原文标题为:东佳解答:LED驱动电源首选固态电容器,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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铝电解电容器
型号- ELXV500E□□221MJ25S,APXA6R3ARA101MF61G,APXD6R3ARA560ME61G,EKY-630E□□122ML40S,EMLA350ARA330MF80G,EKY-101E□□470MJC5S,EKXN401E□□151ML35S,EKZN6R3E□□272MK16S,EKXJ401E□□560MJ50S,EKYB160E□□562ML25S,EKXJ351E□□270MJ30S,EMVY100□RA472MLN0S,ELXY630E□□330MF15D,EKZH160E□□472ML25S,EMZA160□RA331MHA0G,ELXY160E□□821MJ25S,EGXF250E□□511MJC5S,ELBG250E □□ 352AK35S,ELXY350E□□272ML40S,EKZN100E□□222MJ25S,EGPA500E□□102MK35S,ELXV160E□□562ML40S,EMVL250ARA330MF60G,EKMQ101E□□2R2ME11D,APXJ2R5ARA122MH70G,EKYA100E□□122MH20D,EKWB451E□□820MM20S,ELBG250E □□ 922AMP1S,EKXJ251E□□330MJ20S,EKXL401E□□680MK35S,APSW250E□□471MHB5S,EKXN401E□□680MK30S,EMZA630□RA301MKG5S,EMVY6R3□RA682MLN0S,1,ELXZ630E□□331MJ30S,2,3,EKZN500E□□181MH20D,HHXJ250□RA681MJC5G,E MZE □□□ A RA □□□ M □□□ G,4,EKZE101E□□391MK40S,EGPA800E□□471MM20S,EMVH250□RA681MMH0S,ESRG350E□□471MK13S,EKMQ100E□□331MF11D,EMZA350□RA331MJA0G,6,EKYB6R3E□□682MK30S,EGXF500E□□241MJ16S,APSG200E□□331MH08S,EKYB250E□□151MF11D,EGXF250E□□751MJ16S,ELXZ250E□□821MJ25S,EKY-100E□□392ML20S,ELXV350E□□272MM35S,ELXV160E□□272MK35S,EKRG160E□□222ML15S,EMVY100□RA681MJA0G,EKXN451E□□820MK45S,EKY-160E□□682ML40S,ELZA250E□□272ML20S,EKHE451E□□101ML35S,EKZM350E□□222ML25S,ELXY500E□□331MJ30S,EGVD250E□□822MMP1H,EKZE100E□□222MK20S,APXE6R3ARA122MJA0G,EKYC350E□□512MM30S,EMVE100□RA222MKG5S,ELXZ6R3E□□682MM20S,EGPA500E□□122ML30S,EKZE500E□□331MJ25S,EKZN800E□□181MJ20S,EKY-350E□□222MLN3S,EKYB250E□□562MLP1S,EKYB800E□□122ML40S,EMLE6R3ARA101MF73G,EPAG401E□□101MU40S,ELXV500E□□561MK30S,EKZE630E□□182MM40S,EKWA421E□□560MJ50S,ELBG350E □□ 202AU25S,APXT100ARA121ME61G,EKXQ421E□□510ML20S,EGXF350E□□512MM35S,E KXL □□□ E □□ □□□ M □□□ S,EKY-800E□□121MJ20S,EKXL401E□□121MM30S,ELBG250E □□ 113AM40S,APXE4R0ARA561MH70G,EKYB100E□□123ML40S,EKXL421E□□680ML25S,520 EMHS250□RA332MLN0S,EGXF350E□□242MM20S,EMVL160ARA471MJA0G,EKRG160E□□332MM15S,ELXV800E□□102MM40S,EKZN630E□□182ML40S,APXH160ARA390MF61G,EKZH100E□□682ML25S,EKYB100E□□562MK35S,ELXZ630E□□101MJC5S,EKXJ421E□□560MK40S,EMLA250ARA100ME61G,APXJ2R5ARA821MF61G,EKHF451E□□101MK45S,EGPA500E□□821MU25S,EGPA800E□□681ML35S,HHXD630□RA220MF80G,EKY-350E□□122MK30S,E PAG □□□ E □□ □□□ M □□□ S,EPAG201E□□151MK30S,EKMQ100E□□472MK25S,EKZE250E□□331MJC5S,EMVJ500ARA3R3MD60G,EKZN800E□□471MK30S,ELXV500E□□180MEB5D,ELXV160E□□222MK30S,EKXJ221E□□121MU25S,ELXZ6R3E□□122MJ16S,EKMQ100E□□332MK20S,EMVE100□RA331MHA0G,ESRG500E□□102MM20S,EMLE350ARA221MJA0G,ELE-160E□□470ME11D,EKXN351E□□680MJ40S,ELXV100E□□331MH12D,ELXV500E□□181MJ20S,ELXV800E□□560MH20D,EKYA350E□□392MLP1S,EKXN421E□□560MM16S,EKZN350E□□182MK35S,EKXJ221E□□181MK40S,EKXJ421E□□330MK30S,EKZE800E□□331ML20S,EKY-160E□□103MM40S,ELE-250E□□101MF11D,ESMQ351VSN331MQ35S,NPCAP™-PSKSERIES,EMVH500□RA101MKE0S,EKYC250E□□561MJC5S,EKY-350E□□471MJ20S,EKZE6R3E□□561MHB5D,EKY-500E□□681MK30S,EGPA250E□□332MK40S,APXG250ARA100ME46G,EMZF250ARA331MJA0G,EKZE800E□□102ML40S,APSC100E□□391MHB5S,EKYC250E□□622MM25S,EKXJ221E□□331ML45S,ELXZ500E□□122ML30S,EKZN800E□□221MJ25S,EMHB630□TR331MKN0S,ELXZ350E□□271MH20D,HHXD630□RA330MJA0G,EKXN351E□□101MK40S,EMVY250□RA101MF80G,EKXJ421E□□820MMN3S,EMVL500ARA3R3MD60G,EKYC101E□□152MM40S,EKXL421E□□820MU35S,EKZM160E□□182MJ25S,EKXJ401E□□270MK20S,EKXN421E□□680ML20S,EKXN451E□□820MM20S,ELXV101E□□101MK20S,EKZE160E□□332MK35S,ELXZ100E□□471MH12D,EKXJ421E□□270MJ35S,EMZL500□RA221MJA0G,ELXV800E□□681ML40S,EGXF500E□□122MK35S,EMHL160□RA221MF80G,EKY-100E□□122MJ20S,ELXZ350E□□272MM30S,EGPA350E□□222MM25S,ELXV630E□□560MJC5S,EMZF100ARA330ME73G,ELXZ500E□□470MFB5D,EKWB401E□□680MK30S,ELE-101E□□220MHB5D,EGPD500E□□102ML20H,EMZE250ARA470MF73G,EMZE350ARA220MF73G,EKYC350E□□222ML20S,EKYB350E□□182MK30S,ELXZ250E□□331MH15D,LXVSERIES,EKZH160E□□332ML20S,EKYB100E□□222MJ25S,EKY-6R3E□□392MM15S,EKWB451E□□221MM45S,EKMQ201E□□331MM40S,GVDSERIES,EMLF350ARA1R0MD73G,EKZN800E□□271MJ25S,EKY-350E□□331MJ16S,ELXZ500E□□471MK20S,EKZN100E□□123MMP1S,EMVE250ARA220MF55G,SME,EKZM6R3E□□272MJ25S,EKYA250E□□471MJC5S,EKZN800E□□122ML40S,EKYC101E□□391MK30S,EKXJ251E□□470MJ25S,APSF6R3E□□821MF08S,SMH,ESMQ201VSN122MA30S,SMM,EKYC160E□□562MK30S,SMQ,EKLJ201E□□181MM25S,EKZH250E□□152MK20S,EKZE6R3E□□682ML25S,EKYA630E□□820MH15D,SMR,APXD2R5ARA221MF61G,APSG250E□□561MJB5S,EMLA350ARA221MJA0G,EGPD250E□□332ML20H,A PSE □□□ E □□ □□□ M □□□ S,EKZN250E□□681MJ16S,EMVY800□RA331MMH0S,EKY-630E□□681ML25S,EKZE630E□□820MH15D,EGXF350E□□332MM25S,APSG250E□□121MF08S,HHXC500□RA151MJC5G,EKXL451E□□390ML20S,EKHF421E□□221ML50S,HHXC630□RA820MJA0G,EKZE630E□□821MM25S,EGXF161E□□181MK35S,APXH2R5ARA221MF61G,EMVH500ARA100MF60G,PSC SERIES,ESMR401VSN221MP35S,EKXL451E□□820MM25S,EKHF451E□□101MM25S,EKLJ451E□□820ML40S,EMVY250ARA100ME55G,APXE4R0ARA471MH70G,AICHIP™-MHBSERIES,EKZH250E□□151MF11D,ELXZ160E□□272MK30S,EGXF630E□□681MU25S,AICHIP™-MZRSERIES,APXG160ARA271MH70G,EKMQ100E□□153MLP1S,APXH160ARA181MJ80G,HHXJ250□RA331MHA0G,APXH6R3ARA151MH70G,EMLE160ARA100MD73G,EMVJ250ARA330MF60G,EKZH6R3E□□682MK35S,ELXV800E□□271ML20S,APXG250ARA221MJA0G,EGPA800E□□561MM25S,EMHB250□RA821MKE0S,EKXL421E□□470MK30S,APSC2R5E□□152MHB5S,EKYA160E□□681MJC5S,APXK4R0ARA391MF61G,EMLA250ARA471MJA0G,EKMQ251E□□101ML25S,EMVH101□RA330MJA0G,ELBV350E□□103AM4
【选型】东佳电子(Koshin)铝电解电容器选型指南
目录- 铝电解电容器产品指南 产品一览表 产品体系图 产品型号体系(新版) 产品型号体系(旧版) 编带规格 引线加工 小包装单位 正确使用电容的方法 使用注意事项 使用指南 焊接推荐条件 铝电解电容器产品规格书 贴片型铝电解电容器 引线型铝电解电容器 基板自立型/螺旋端子型铝电解电容器 基板自立型特殊端子形状附录
型号- KPH,K3J,KPG,KLF,KLE,KLH,KPL,K3N,KLG,KLJ,K3S,KLL,KPO,KR1-010V101MC110-T/A5.0,KLP,KHP,KLT,KPX,KLS,KHT,KLW,KA3,K4H,K4J,K4L,KR2,KR1,KAG,KZB,KMT,KZF,KZH,KRB,KZL,MRB,MRA,KRF,KZM,KRH,MRF,MRE,KRJ,MRH,KRL,KRN,MRL,KRM,KJH,MRN,KBD,KNR,MRT,MRS,KNT,MRW,KBP,KC3,K2A,KSH,KSJ,KCH,KL4,KR1-10V101MA-T/A,KCL,KL5,K3A
【技术】快速掌握纹波电流以及铝电解电容纹波电流计算方法
本文主要介绍的是关于纹波电流以及铝电解电容纹波电流计算方法,并详细对铝电解电容进行了全面的阐述。 【纹波电流】纹波电流或电压是指的电流中的高次谐波成分,会带来电流或电压幅值的变化,可能导致击穿,由于是交流成分,会在电容上发生耗散,如果电流的纹波成分过大,超过了电容的最大容许纹波电流,会导致电容烧毁。 【额定纹波电流( IRAC )】额定纹波电流 IRAC 又称为最大允许纹波电流。
技术探讨 发布时间 : 2021-08-27
KXF 系列小型铝电解电容器
型号- KXF 系列,EKXF451E□□150MK20S,EKXF451E□□330MM20S,EKXF251E□□100MJC5S,EKXF451E□□100MJ20S,EKXF451E□□330ML25S,EKXF251E□□120MJC5S,EKXF451E□□6R8MJ16S,EKXF□□□E□□□□□M□□□S,EKXF451E□□470MM25S,EKXF161E□□220MJC5S,EKXF451E□□220MK25S,EKXF401E□□8R2MJ16S,EKXF451E□□270ML20S,EKXF401E□□5R6MJC5S,EKXF201E□□270MJ16S,KXF,EKXF451E□□680MMN3S,EKXF161E□□330MJ16S,EKXF251E□□180MJ16S,EKXF451E□□8R2MJ16S,EKXF201E□□180MJC5S
【经验】一文告诉你电解电容鼓包的原因及使用注意事项
本文介绍电解电容鼓包的原因及使用注意事项。电解电容过热或受到大浪涌电流、电流是,产品容易出现鼓包的现象,在使用过程中,一定要注意电容的环境温度和温升温度,并且电路中浪涌电压和纹波电流不要超过电容的额定耐压和额定纹波电流。世强目前有供应的铝电解电容品牌有法国的EXXELIA、日本的NCC,国产su’scon和KOSHIN等品牌,其产品广泛使用在汽车电子,工业自动化,UPS,基站、电动汽车,光伏等应用
设计经验 发布时间 : 2019-11-12
代理高端铝电解/金属膜/超级/陶瓷/安规电容,科尼盛授权世强硬创
科尼盛联合世强硬创共同为下游用户提供全方位电容器产品以及应用解决方案。
签约新闻 发布时间 : 2023-06-28
【经验】如何激活久置不用的电解电容?
知道吗?电解电容放置太久,需要先激活再使用,否则会导致损坏或者使用寿命下降。本文东佳电子为您介绍如何激活久置不用的电解电容。
设计经验 发布时间 : 2021-12-10
东佳电子(Koshin)KOAS高分子导电性固态电容器选型指南
目录- Application Guidelines Part Number System Packing Specifications KS Conductive Polymer Aluminum Solid Capacitors KU Conductive Polymer Aluminum Solid Capacitors KP Conductive Polymer Aluminum Solid Capacitors KL Conductive Polymer Aluminum Solid Capacitors KW Conductive Polymer Aluminum Solid Capacitors KH Conductive Polymer Aluminum Solid Capacitors VR Conductive Polymer Aluminum Solid Capacitors VT Conductive Polymer Aluminum Solid Capacitors VX Conductive Polymer Aluminum Solid Capacitors KM Conductive Polymer Aluminum Solid Electrolytic Capacitors VM Conductive Polymer Aluminum Solid Electrolytic Capacitors VH Conductive Polymer Aluminum Solid Electrolytic Capacitors
型号- KL,VX,KM,KP,KS,KU,KW,VH,KU-2R5V821MF125-T/A5.0,VM,VR,KH,VT
KXF系列引线型·高纹波·长寿命品 (105°C)小型铝电解电容器
型号- EKXF451E□□150MK20S,EKXF451E□□330MM20S,EKXF251E□□100MJC5S,EKXF451E□□100MJ20S,EKXF451E□□330ML25S,EKXF251E□□120MJC5S,EKXF451E□□6R8MJ16S,EKXF□□□E□□□□□M□□□S,EKXF451E□□470MM25S,KXF系列,EKXF161E□□220MJC5S,EKXF451E□□220MK25S,EKXF401E□□8R2MJ16S,EKXF451E□□270ML20S,EKXF401E□□5R6MJC5S,EKXF201E□□270MJ16S,KXF,EKXF451E□□680MMN3S,EKXF161E□□330MJ16S,EKXF251E□□180MJ16S,EKXF451E□□8R2MJ16S,EKXF201E□□180MJC5S
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整体外形尺寸小至0.6*0.3*0.3mm (DFN0603),工作电压范围覆盖2.5V~36V,电容值低至0.2pF,浪涌能力最高可达240安培,静电等级可达空气放电、接触放电±30KV。提供免费浪涌测试仪、静电测试仪测试。
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可定制OGS一片式电容屏,G+G电容屏,G+F电容屏,G+F+F电容屏,尺寸范围:1”~21”,单层产品厚度:0.55mm~2mm,可按客户要求在产品上附加防反射,防指纹,多色丝印,钻孔磨边,2.5D导圆角等工艺。
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