【经验】KMR高压滤波电容在中大功率开关电源驱动电路的LLC电路上的应用

时间： 2019-07-08 来源：世强

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我司所有中大功率开关电源驱动电路，基本上采用LLC谐振半桥转换器，可以实现高效率、低电磁干扰、功率密度大，所以这种LLC拓扑电路已经大量应用在工业级和伺服器大功率开关电源。

常规的反激拓扑通常是没有功率因数（PFC）校正电路，所以电流电压相位严重畸变，功率因数很低。

看下图LLC拓扑原理图采用该FAN7930C BOOST PFC芯片有源功率因数校正控制器的操作升压PFC应用在临界导通模式（CRM）。它使用一个电压 -PWM模式与比较内部斜坡信号误差放大器的输出来产生一个MOSFET关断信号。栅极驱动输出触发电压在 320V-349V之间跳动，该高压滤波电容长时间工作。使用普通品牌滤波电容，常常收到终端客户投诉很容易爆浆，滤波效果变差。，

与客户验证讨论，建议采用Nippon Chemi-Con（黑金刚）450V /150µF _±20% KMR系列高压滤波电容。因为黑金刚电容特殊的串联结构适合于高电压滤波，当工作温度在105°时，工作电压在160V-450V范围内，纹波电流连续疲劳试验在2000小时以上，长期安全工作可靠性，高电流爬升速率等优点并适用于LLC大电流滤波。非常适用UPS逆变器控制电源以及LLC开关电源。

结论：LLC拓扑电路 PFC输出电压变化实际上就是输出滤波电容器两端直流电压的变化，直流成分还带有很多交流成分，交流成分需要用到滤波电解电容才能吸收，在滤波电容吸收PFC交流成分同时在滤波电容器上会产生电压波动，即纹波电压，所有说使用品质好滤波电容才能使纹波输出电压纹波“平滑作用”在控制范围内，使用品质好滤波电容黑金刚铝电解电容，现场测得电压纹波值由原来92.4mV 下降到 38.4mV，电流损耗减小，效率提升。完美解决电容纹波大已经电容爆浆问题。

NIPPON CHEMI-CON（黑金刚） EKMR451VSN151MQ25S高压铝电解电容器的具体性能参数：

描述： CAP ALUM 150UF 20% 450V SNAP ROHS

具体型号：EKMR451VSN151MQ25S

制造商：United Chemi-Con

电容/容差:150µF /±20%

额定电压:160V-450V

不同温度时的使用寿命:105°C 时为 2000 小时

工作温度:-25°C ~ 105°C

纹波电流 @ 低频率:890mA @ 120Hz

纹波电流 @ 高频率:1.2727A @ 50kHz

引线间距: 0.394"（10.00mm）

大小/尺寸:1.000" 直径（25.40mm）

高度 - 安装（最大值） 1.083"（27.50mm）

安装类型: 直插通孔

封装/外壳：径向，Can - 卡入式

对无铅要求的达标情况/对限制有害物质指令(RoHS)规范的达标情况：无铅/符合限制有害物质指令(RoHS)规范要求

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KMR系列小型咬接式105°C大电容铝电解电容器

描述- 本资料介绍了KMRSeries大容量铝电解电容器，该系列产品具有尺寸缩小、高纹波电流处理能力等特点。产品适用于逆变器控制和开关电源等领域。

型号- EKMR401VSN271MP45S,EKMR181VSN122MP50S,EKMR201VSN561MQ25S,EKMR351VSN122MA50S,EKMR161VSN122MP50S,EKMR161VSN182MR35S,EKMR401VSN331MR30S,EKMR421VSN331MQ45S,EKMR401VSN471MA30S,EKMR451VSN681MA50S,EKMR161VSN102MQ30S,EKMR401VSN471MR40S,EKMR201VSN272MA45S,EKMR421VSN151MP30S,EKMR421VSN391MR40S,EKMR201VSN821MP40S,EKMR351VSN561MR35S,EKMR3B1VSN181MP25S,EKMR3B1VSN221MP30S,EKMR421VSN391MA30S,EKMR181VSN681MQ25S,EKMR181VSN102MP45S,EKMR3B1VSN122MA50S,EKMR421VSN271MQ40S,EKMR351VSN821MA40S,EKMR451VSN271MQ40S,EKMR401VSN121MP25S,EKMR3B1VSN391MP45S,EKMR351VSN331MP45S,EKMR421VSN121MP25S,EKMR351VSN391MR30S,EKMR3B1VSN471MQ40S,EKMR181VSN222MA40S,EKMR251VSN391MP30S,EKMR401VSN681MR50S,EKMR181VSN821MP40S,EKMR3B1VSN271MP35S,EKMR201VSN122MR35S,EKMR201VSN821MR25S,EKMR451VSN561MA40S,EKMR3B1VSN561MR35S,EKMR401VSN681MA40S,EKMR3B1VSN331MQ30S,EKMR421VSN561MA40S,EKMR201VSN102MR30S,EKMR201VSN182MR45S,EKMR401VSN471MQ50S,EKMR181VSN222MA35S,EKMR401VSN221MP35S,EKMR161VSN222MA35S,EKMR251VSN561MP40S,EKMR161VSN272MR50S,EKMR351VSN271MP35S,EKMR161VSN272MA40S,EKMR161VSN122MQ35S,EKMR251VSN152MR50S,EKMR451VSN221MR25S,EKMR161VSN102MP40S,EKMR401VSN331MA25S,EKMR451VSN331MA30S,EKMR351VSN561MQ50S,EKMR251VSN821MQ40S,EKMR451VSN471MA35S,EKMR3B1VSN102MA40S,EKMR181VSN222MR50S,EKMR351VSN221MQ25S,EKMR3B1VSN102MR50S,EKMR421VSN181MP35S,EKMR251VSN152MA40S,EKMR251VSN122MR45S,EKMR421VSN331MR35S,EKMR181VSN152MQ45S,EKMR351VSN681MR45S,EKMR401VSN221MQ30S,EKMR421VSN821MA50S,EKMR□□□VSN□□□M□□□S,EKMR201VSN821MQ35S,EKMR251VSN681MP45S,EKMR3B1VSN471MP50S,EKMR181VSN122MA25S,EKMR401VSN271MR25S,EKMR351VSN821MR50S,EKMR251VSN222MA50S,EKMR421VSN681MA45S,EKMR351VSN271MQ30S,EKMR201VSN102MQ40S,EKMR421VSN221MP45S,EKMR251VSN122MA35S,EKMR451VSN471MR45S,EKMR401VSN331MP50S,EKMR401VSN821MA50S,EKMR161VSN152MQ45S,EKMR351VSN391MA25S,EKMR161VSN152MR30S,EKMR401VSN271MP40S,EKMR161VSN102MR25S,EKMR421VSN181MQ30S,EKMR161VSN182MR40S,EKMR451VSN271MR30S,EKMR161VSN182MA30S,EKMR3B1VSN681MQ50S,EKMR181VSN561MP30S,EKMR351VSN471MQ45S,EKMR401VSN391MQ45S,EKMR181VSN182MA30S,EKMR251VSN561MR25S,EKMR451VSN271MQ45S,EKMR181VSN102MR25S,EKMR201VSN182MA35S,EKMR351VSN681MA35S,EKMR181VSN821MQ30S,EKMR401VSN181MP30S,EKMR201VSN122MQ45S,EKMR251VSN821MQ45S,EKMR351VSN331MR25S,EKMR351VSN151MP25S,EKMR3B1VSN821MA35S,EKMR3B1VSN391MR25S,EKMR451VSN101MP25S,EKMR451VSN561MA45S,EKMR451VSN331MQ50S,EKMR251VSN821MR30S,EKMR3B1VSN331MP40S,EKMR401VSN102MA50S,EKMR351VSN561MR40S,EKMR3B1VSN561MQ45S,EKMR3B1VSN821MR45S,EKMR181VSN182MR40S,EKMR351VSN391MP50S,EKMR251VSN102MR35S,EKMR421VSN271MP50S,EKMR161VSN821MP35S,EKMR251VSN561MQ30S,EKMR351VSN561MA30S,EKMR451VSN271MP50S,KMR,EKMR351VSN331MP40S,EKMR451VSN121MP30S,EKMR201VSN681MQ30S,EKMR3B1VSN471MA25S,EKMR201VSN102MP50S,EKMR181VSN471MP25S,EKMR3B1VSN271MQ25S,EKMR201VSN561MP30S,EKMR181VSN681MP35S,EKMR451VSN181MP40S,EKMR181VSN122MR30S,EKMR401VSN391MR35S,EKMR401VSN561MA35S,EKMR3B1VSN122MA45S,EKMR201VSN152MQ50S,EKMR161VSN152MA25S,EKMR251VSN122MR40S,EKMR181VSN102MQ35S,EKMR181VSN152MR35S,EKMR251VSN681MQ35S,EKMR451VSN151MQ25S,EKMR421VSN151MQ25S,EKMR401VSN561MR45S,EKMR251VSN471MP35S,EKMR451VSN271MA25S,EKMR161VSN222MR45S,EKMR421VSN271MA25S,EKMR451VSN221MQ35S,EKMR421VSN221MQ35S,EKMR401VSN331MQ40S,EKMR451VSN151MP35S,EKMR421VSN561MR50S,EKMR201VSN222MA40S,EKMR451VSN331MR35S,EKMR3B1VSN681MA30S,EKMR161VSN182MQ50S,EKMR201VSN222MR50S,EKMR181VSN222MR45S,EKMR251VSN331MP25S,EKMR421VSN221MR25S,EKMR3B1VSN681MR40S,EKMR401VSN821MA45S,EKMR401VSN271MQ35S,EKMR251VSN102MQ50S,EKMR201VSN122MA25S,EKMR181VSN122MQ40S,EKMR251VSN821MA25S,EKMR421VSN471MA35S,EKMR3B1VSN471MR30S,EKMR161VSN152MQ40S,EKMR421VSN221MP40S,EKMR161VSN821MQ25S,EKMR161VSN561MP25S,EKMR201VSN152MA30S,EKMR421VSN391MQ50S,EKMR251VSN182MA45S,EKMR451VSN221MP45S,EKMR401VSN181MQ25S,EKMR451VSN391MR40S,EKMR421VSN471MR45S,EKMR351VSN102MA45S,EKMR161VSN332MA45S,EKMR181VSN152MQ50S,EKMR451VSN181MQ30S,EKMR351VSN331MQ35S,EKMR451VSN471MR50S,EKMR3B1VSN391MQ35S,KMR SERIES,EKMR201VSN681MP35S,EKMR351VSN221MP30S,EKMR161VSN122MP45S,EKMR201VSN152MR40S,EKMR161VSN681MP30S,EKMR181VSN272MA45S,EKMR421VSN271MR30S,EKMR351VSN391MQ40S

2022/5/9 - NIPPON CHEMI-CON - 数据手册代理服务技术支持采购服务

PNA 系列贴片型导电性高分子固体铝电解电容器

描述- 该资料介绍了Nippon Chemi-Con公司推出的新型PNA系列导电性高分子固体铝电解电容器。该系列电容器具有超低ESR、长寿命等特点，适用于高温环境，电压范围在2.5Vdc至16Vdc之间，静电容量从100uF至560uF不等。PNA系列电容器在耐久性、高温性能和寿命方面优于传统PXT系列，适用于电源输出端、通信基站等应用场景。

型号- PNA,PNA 系列

2024/10/29 - NIPPON CHEMI-CON - 商品及供应商介绍代理服务技术支持采购服务

科尼盛高压滤波铝电解电容器赋能65W卡片式氮化镓超薄快充，满足小型化设计需求

科尼盛铅笔型细长高压滤波铝电解电容器纳入65W卡片式(饼干）氮化镓超薄快充，该65W超薄氮化镓充电器采用时下热门“饼干”造型设计，实测三围仅80.5*43*10mm，加上采用折叠插脚，十分小巧便携，配备1A1C万金油接口，分别支持65W和30W快充，兼容FCP、AFC、QC3.0、PD3.0、PPS丰富快充协议，满足笔电、手机等大小设备快充需求。

2023-03-18 - 原厂动态代理服务技术支持采购服务

HACB 系列高频率、大电流用（高压用）金属化聚丙烯膜电容器

描述- 该资料介绍了HACB系列金属化聚丙烯膜电容器，这是一种适用于高压和大电流应用的电容器。它具有独特的圆筒结构和低噪音特性，广泛应用于开关电源、逆变器、电视机偏转电路、滤波器和音响设备等领域。

型号- FHACB102V684J2LEZ0,HACB3C682J,HACB2J393J,HACB3G822J,HACB3A273J,HACB3A394J,FHACB631V224J1LHZ0,FHACB402V272JLLQZ0,FHACB1C2V104J1LHZ0,FHACB202V182JKLDZ0,FHACB1C2V124J1LHZ0,FHACB202V184J4LJZ0,FHACB402V682JLLQZ0,HACB3G332J,HACB3C223J,HACB3G562J,FHACB102V184J1LHZ0,FHACB3B2V153JLLQZ0,FHACB631V105J2LEZ0,HACB2J394J,HACB3A274J,HACB3D184J,HACB3F123J,FHACB1C2V184J2LEZ0,FHACB3B2V682JLLQZ0,HACB3G183J,FHACB1C2V274J2LEZ0,FHACB631V125J2LEZ0,FHACB102V473J0LGZ0,HACB3G103J,FHACB162V274J4LJZ0,FHACB102V683J0LGZ0,HACB3C563J,HACB3A154J,FHACB202V183J1LHZ0,HACB3C183J,FHACB202V333J1LHZ0,HACB3D272J,HACB3D393J,FHACB631V394J1LHZ0,HACB2J105J,HACB3B123J,FHACB202V272JKLDZ0,HACB2J824J,HACB3B473J,FHACB102V104J1LHZ0,FHACB631V333J0LGZ0,FHACB202V274J4LJZ0,HACB3C823J,HACB3C104J,FHACB162V682JKLDZ0,HACB3C334J,FHACB202V122JKLDZ0,HACB3C562J,HACB3C683J,FHACB631V124J0LGZ0,FHACB202V124J2LEZ0,HACB3D392J,HACB3F472J,FHACB162V273J1LHZ0,HACB3B124J,FHACB102V274J2LEZ0,HACB3B474J,FHACB1C2V473J0LGZ0,HACB3C822J,FHACB102V125J4LJZ0,HACB3G682J,HACB3C103J,HACB3C333J,HACB3C224J,FHACB3B2V472JLLQZ0,FHACB202V103JKLDZ0,FHACB162V394J4LJZ0,FHACB1C2V684J4LJZ0,HACB2J333J,HACB2J224J,HACB3F562J,FHACB1C2V153J0LGZ0,FHACB202V123JKLDZ0,HACB3F223J,HACB3D153J,HACB3D274J,FHACB1C2V123J0LGZ0,FHACB1C2V183J0LGZ0,HACB3F822J,HACB3G392J,FHACB162V124J2LEZ0,FHACB162V104J2LEZ0,HACB2J563J,HACB2J684J,FHACB162V154J2LEZ0,FHACB162V184J2LEZ0,HACB2J184J,HACB3F183J,HACB3C184J,FHACB162V822JKLDZ0,HACB2J334J,HACB3F333J,FHACB631V564J2LEZ0,HACB2J104J,FHACB162V472JKLDZ0,HACB3D152J,HACB3D273J,HACB3F103J,HACB3B223J,FHACB402V153JLLQZ0,HACB2J823J,HACB3G272J,FHACB102V183J0LGZ0,FHACB202V153JKLDZ0,FHACB102V563J0LGZ0,HACB2J564J,FHACB162V683J1LHZ0,FHACB202V682JKLDZ0,HACB3C393J,HACB3A473J,HACB2J125J,FHACB162V223JKLDZ0,FHACB631V154J1LHZ0,HACB3B563J,HACB3B684J,FHACB1C2V154J2LEZ0,HACB3B333J,FHACB202V393J1LHZ0,FHACB402V123JLLQZ0,HACB3B224J,HACB3B683J,FHACB1C2V683J1LHZ0,HACB3A474J,FHACB1C2V823J1LHZ0,FHACB631V393J0LGZ0,FHACB202V102JKLDZ0,FHACB402V562JLLQZ0,FHACB3B2V123JLLQZ0,HACB3F682J,HACB3B564J,HACB3B823J,HACB3D154J,HACB3B104J,HACB3B334J,HACB3B183J,FHACB102V105J4LJZ0,HACB2J683J,HACB3A124J,FHACB3B2V562JLLQZ0,HACB3B824J,HACB3C153J,HACB3C274J,FHACB202V473J1LHZ0,HACB2J474J,FHACB102V823J1LHZ0,FHACB1C2V224J2LEZ0,HACB3B105J,HACB3D472J,HACB 系列,FHACB631V274J1LHZ0,FHACB1C2V474J4LJZ0,FHACB3B2V103JLLQZ0,HACB3B184J,FHACB202V563J2LEZ0,HACB3A125J,FHACB202V152JKLDZ0,FHACB631V473J0LGZ0,HACB3C273J,HACB3C394J,FHACB162V562JKLDZ0,FHACB202V222JKLDZ0,HACB2J124J,FHACB102V824J4LJZ0,FHACB1C2V333J0LGZ0,FHACB631V823J0LGZ0,FHACB202V823J2LEZ0,FHACB102V394J2LEZ0,FHACB1C2V393J0LGZ0,HACB3A223J,HACB3A683J,FHACB102V334J2LEZ0,FHACB631V184J1LHZ0,FHACB202V822JKLDZ0,FHACB162V823J2LEZ0,FHACB102V564J2LEZ0,FHACB402V103JLLQZ0,FHACB402V392JLLQZ0,HACB3D123J,FHACB1C2V564J4LJZ0,FHACB631V474J2LEZ0,FHACB631V563J0LGZ0,HACB3A333J,HACB3A563J,HACB3A224J,HACB3A684J,FHACB202V224J4LJZ0,FHACB3B2V333JLLQZ0,HACB3A183J,FHACB1C2V105JULWZ0,HACB3C154J,HACB2J473J,FHACB3B2V183JLLQZ0,FHACB102V154J1LHZ0,FHACB402V183JLLQZ0,HACB3D122J,HACB3D473J,FHACB102V224J1LHZ0,HACB3A823J,FHACB1C2V824J4LJZ0,FHACB162V563J1LHZ0,HACB3B393J,FHACB202V562JKLDZ0,FHACB102V393J0LGZ0,HACB3A334J,FHACB1C2V394J2LEZ0,HACB3A564J,HACB3A104J,HACB3G153J,FHACB162V183JKLDZ0,HACB3C472J,FHACB402V822JLLQZ0,FHACB202V273J1LHZ0,FHACB162V153JKLDZ0,HACB3A184J,FHACB402V472JLLQZ0,FHACB202V392JKLDZ0,HACB3D222J,HACB3B394J,FHACB162V103JKLDZ0,HACB3A824J,HACB3B273J,HACB3D682J,FHACB162V123JKLDZ0,FHACB3B2V273JLLQZ0,HACB3A105J,FHACB3B2V223JLLQZ0,FHACB1C2V563J1LHZ0,FHACB631V683J0LGZ0,FHACB202V332JKLDZ0,FHACB202V683J2LEZ0,FHACB162V333J1LHZ0,HACB3D124J,HACB3B153J,HACB3B274J,FHACB202V223J1LHZ0,FHACB202V154J2LEZ0,FHACB102V273J0LGZ0,HACB3G123J,HACB3C123J,HACB2J274J,HACB3D183J,FHACB1C2V223J0LGZ0,FHACB631V334J1LHZ0,FHACB202V472JKLDZ0,HACB3D823J,HACB3F273J,FHACB162V393J1LHZ0,HACB3D333J,HACB3D104J,HACB3D563J,FHACB402V332JLLQZ0,HACB3B154J,FHACB3B2V822JLLQZ0,FHACB102V124J1LHZ0,FHACB162V224J2LEZ0,HACB3C124J,FHACB631V104J0LGZ0,FHACB202V104J2LEZ0,FHACB631V684J2LEZ0,HACB3C473J,FHACB102V223J0LGZ0,HACB2J154J,HACB3A393J,HACB3D182J,HACB3D822J,HACB3F153J,HACB3D102J,HACB3D332J,HACB3D223J,FHACB162V334J4LJZ0,HACB3D103J,HACB3D224J,HACB3D562J,HACB3D683J,FHACB1C2V273J0LGZ0,FHACB1C2V334J2LEZ0,FHACB162V473J1LHZ0,FHACB631V824J2LEZ0,FHACB102V474J2LEZ0,FHACB102V333J0LGZ0,HACB3G472J

2021/04/04 - NIPPON CHEMI-CON - 数据手册代理服务技术支持采购服务

KHV 系列基板自立型铝电解电容器

描述- 该资料介绍了KHV系列基板自立型铝电解电容器。产品特点包括高容量、高纹波性能，尺寸小型化，适用于太阳能发电、通用变频器等应用。与KMR系列相比，KHV系列在相同尺寸下提供更大的容量和纹波电流，同时实现小型化。资料还详细介绍了KHV系列的技术优势，如采用新技术的阴极箔，提高了合成容量。此外，还提供了KHV系列与KMR系列在容量、纹波电流和尺寸等方面的比较数据。

型号- KHV,KHV 系列

2024/10/30 - NIPPON CHEMI-CON - 商品及供应商介绍代理服务技术支持采购服务

【应用】平伟实业NMOS D40N03H用于荣耀100W超级快充充电器，30V耐压助力实现大电流快充

本文要拆解的是一款荣耀的100W超级快充充电器，其输出VBUS开关管来自平伟实业，型号D40N03H，是一颗耐压30V的NMOS，导阻4.3mΩ，采用DFN3*3封装；另外。该充电器整流桥来自扬杰电子，滤波电解电容来自东佳，固态电容来自钰邦。

2023-08-31 - 应用方案

LHX 系列基板自立型铝电解电容器

描述- 该资料介绍了Nippon Chemi-Con公司新推出的LHX系列基板自立型铝电解电容器。该系列电容器具有高容量、高纹波特性，尺寸小型化，适用于太阳能发电、通用变频器等领域。与LXS系列相比，LHX系列在相同尺寸下容量更大，纹波电流更高，尺寸更小，具有长寿命和耐高温等特点。资料还详细介绍了LHX系列的技术优势、应用场景和性能比较。

型号- LHX,LHX 系列

2024/10/29 - NIPPON CHEMI-CON - 商品及供应商介绍代理服务技术支持采购服务