【应用】国产无电感ACDC KP3310可取代传统阻容降压方案,外围极简、输出稳定

2021-03-17 世强
无电感ACDC,KP3310SGA,KP3310,必易微电子 无电感ACDC,KP3310SGA,KP3310,必易微电子 无电感ACDC,KP3310SGA,KP3310,必易微电子 无电感ACDC,KP3310SGA,KP3310,必易微电子

将交流市电转换为低压直流的常规方法是采用变压器降压后再整流滤波,当受体积和成本等因素的限制时,最简单实用的方法就是采用阻容降压式电源。阻容降压包括电容降压和电阻降压两种,电容降压整流后未经稳压的直流电压一般会高于30V,并且会随负载电流的变化发生很大波动,故不适合大电流供电的应用。


本文对比传统阻容降压与必易微电子全新KP3310方案做对比,包括电路器件数量、KP3310SGA电路优点等方面,分析用KP3310无电感ACDC方案去取代传统阻容降压方案的优势。

图1:传统阻容降压与KP3310的原理图对比

图2:传统阻容降压与KP3310的BOM表对比


A、从图1&图2对比分析可以看出:传统阻容降压的缺点如下:

1、输出电压不稳,取决于稳压管精度(温飘大)

2、CBB容易衰减,使用时间长之后带载能力会下降,寿命短

3、输入杂波过来,电容相当于短路,电流突变,容易损坏

KP3310SGA的优点如下:

1、新颖的工作方式

2、极精简的外围, 无高压输入电解,电感等大体积器件

3、极简单的设计,可选的高精度±2%输出电压(芯片内置LDO)

4、完备的保护集成,集成650V MOS


B、分析KP3310的典型电路图,可以看出KP3310主要特点有:

1、超低系统成本:无电感、大电解设计

2、外围极简,典型电路只需3个器件

3、高精度±1% 5V输出

4、支持全压输入:85 - 305Vac

5、内置650V高压MOSFET

6、小于35mW待机

7、低纹波、低EMC噪声

8、内部集成完备的保护方式:短路保护(SLP),输出欠压保护(UVP),过热保护(OTP),雷击、浪涌保护


综上,推荐用创新开关电源KP3310方案去取代传统的阻容降压方案,同时必易微作为国内领先的ACDC设计厂家,会提供及时的技术支持,以及稳定的供货保障。

授权代理商:世强先进(深圳)科技股份有限公司
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必易微(KIWI)电源解决方案产品选型指南

描述- ​深圳市必易微电子股份有限公司 (股票代码:688045) 拥有半导体领域的资深专家和高效的管理团队,主要从事高性能模拟及数模混合集成电路的研发和销售,在杭州、厦门、上海、成都、中山等地设有研发中心及分支机构。必易微高度重视知识产权的开发和保护,已拥有多项集成电路和系统应用的国际、国内专利。主营产品包括 AC-DC、DC-DC、驱动 IC、线性稳压、保护芯片、电池管理等,为消费电子、工业、通讯、计算机等领域客户提供完整电源解决方案和系统集成。

型号- KP3282,KP40611W,KP3281,KP23130M,KP311BH,KP212,KP2264H,KP206D,KP81106A,KP30173M,KP2591A,KP206A,KP206B,KP36374,KP36373,KP2066,KP2064,KP8530X,KP41282,KP3210B,KP22066A,KP2182,KP2062,KP30172M,KP21822M,KP35052,KP36384,KP35053,KP22308,KP36383,KP36382,KP35051,KP22306,KP40511,KP40512,KP23132M,KP23132K,KP23162,KP2262H,KP23161,KP23160,KP1511,KP35026,KP23264M,KP41260,KP41140,KP41261,KP2806A,KP41141,KP41262,KP41142,KP201,KP30262,KP30264,KP206,KP35032,KP35033,KP30261,KP35031,KP22315A,KP40512M,KP40612,KP3126,KP21824M,KP21824L,KP40611,KP23267,KP23267M,KP21825C,KP4050,KP30181H,KP32652,KP30182H,KP32651,KP35001,KP36573,KP36572,KP40561P,KP22066,KP22064,KP41240,KP41361,KP3501A,KP41241,KP23151,KP22062,KP23150,KP22305L,KP30362,KP2315A,KP2206A,KP22305A,KP22035,KP22033,KP2813A,KP32511,KP40613QD,KP30183M,KP32512,KP36675,KP36674,KP35101,KP36673,KP22306A,KP21827M,KP23132,KP23131,KP23130,KP41340,KP30182M,KP30183H,KP30584,KP35111,KP3251A,KP23221,KP2201C,KP35200,KP8110X,KP22308B,KP3310,KP22308A,KP3311,KP15051,KP23111,KP23110,KP15052,KP32621,KP32622,KP1505A,KP2311A,KP2202A,KP81103,KP81102,KP81101,KP81106,KP41262C,KP2205,KP2206,KP2203,KP21827,KP21824,KP2201,KP2202,KP4060,KP41261C,KP23162M,KP40561,KP23162K,KP311A,KP311B,KP2822,KP3116,KP85631,KP3111,KP2264,KP35083,KP2261,KP40562,KP2262,KP35081,KP3114,KP35082,KP3112,KP40511P,KP201H,KP201F,KP201K,KP201A,KP31614,KP201E,KP22062A,KP201B,KP201C,KP2813,KP3221,KP2011,KP3224,KP3116H,KP3222,KP2012,KP2013,KP3211B,KP23152M,KP2806,KP321B,KP321AB,KP2803,KP30171,KP2801,KP35064,KP40661,KP35062,KP3113H,KP3212B,KP15113,KP15114,KP15111,KP22064A,KP3206,KP3205,KP3211H,KP2591,KP3114H

选型指南  -  必易微  - REV 1.0  - 2023/6/1 PDF 中文 下载

选型表  -  必易微 立即选型

必易微(KIWI)高压智能线性稳压器选型表

描述- 必易微尊重人才、重用人才,不忘科技改善生活的初衷,以客户为中心,坚持“独特创新、易于使用”的公司理念,创新芯领域,引领芯发展,力争成为全球卓越的芯片设计企业。

型号- KP3310,KP3311

选型指南  -  必易微  - 2023/9/5 PDF 中文 下载

LED照明驱动产品介绍

型号- KP18001WPA,KP1079XWPA,KP15062SPA,KP421LGA,KP1271FNSPA,KP116SPA,KP15113SPA,KP1162SPA,KP1511SPA,KP1313X,KP14654DP,KP1271FCSPA,KP1191SPA,KP14653SPA,KP1222SPA,KP3310,KP10772WPA,KP1255,KP107LSPA,KP119SPA,KP1325SPA,KP3310DP,KP1505ASPA,KP1059BWPA,KP15026VPA,KP123X,KP1199BWPA,KP1466SPA,KP106,KP122SPA,KP1273FCSPA,KP13134DP,KP107W,KP119X,KP10790WPA,KP107L,KP15114DP,KP18011,KP1234SPA,KP18011ESPA,KP15026,KP1272FHSPA,KP15111SPA,KP1511,KP1059AWPA,KP107WSPA,KP15051SPA,KP1465SPA,KP10770WPA,KP4500,KP1077XWPA,KP1164MSPA,KP14663CSPA,KP107XL,KP15114SPA,KP1272FCSPA,KP1272FNSPA,KP13135DP,KP14652SPA,KP10792WPA,KP1192DP,KP18108WPA,KP18002FESPA,KP1079AWPA,KP1274FHSPA,KP1255SPA,KP1262FCWPA,KP1511X,KP1313LGA,KP3310SGA,KP1263FCWPA,KP1059CWPA,KP1466X,KP106SPA,KP1501AVPA,KP12353SPA,KP10791WPA,KP116X,KP14652DP,KP4213ESGA,KP1220SPA,KP127XFC,KP1274FNDP,KP421SPA,KP12762FWPA,KP127XFN,KP1192SP,KP1325,KP1501A,KP15052SPA,S4223,KP1193DP,KP126XFCWPA,KP15114HSPA,KP18062ESPA,KP1274FNSPA,KP1272FNDP,KP15062,KP14664MSPA,KP18106WPA,KP15064,KP1276XFWPA,KP1164SPA,KP18061ESPA,KP1274FCSPA,KP14653DP,KP1199AWPA,KP18055ESPA,KP123SPA,KP14651SPA,KP12761FWPA,KP4500SGA,KP1077AWPA,KP14662SPA,KP1805X,KP1261FCWPA,KP1806XWPA,KP14662CSPA,KP1059XWPA,KP1465X,KP1194DP,KP1221SPA,KP12354SPA,KP15064SPA,KP18053ESPA,KP10771WPA

商品及供应商介绍  -  必易微 PDF 中文 下载

【产品】紧凑型无电感设计的离线式线性稳压器KP3310,5V/3.3V/2.7V输出电压

必易微电子推出的KP3310是一款紧凑型无电感设计的离线式线性稳压器,通过调整SEL管脚阻值,KP3310有5V/3.3V/2.7V三档输出电压可选,是一种简单可靠的获得偏置供电的离线式电源解决方案。

新产品    发布时间 : 2020-09-05

数据手册  -  必易微  - REV1.14  - 2023/02/01 PDF 中文 下载 查看更多版本

【经验】必易微离线式线性稳压器KP3310实际设计中的5个注意事项

KP3310是必易微一款紧凑型无电感设计的离线式线性稳压器,外围极简,典型电路只需3个器件,本文将分享KP3310在实际设计中的5个注意事项。

设计经验    发布时间 : 2022-02-28

世强硬创新产品在线研讨会:效率高达94%,高频500kHz,大功率100W以上的电源芯片在PD快充的应用方案

型号- KP2216X,KP2201BSGA,KP4051,KP4050,KP2203LGA,KP322X,KP201X,KP2206SGA,XX6908,KP2822,KP3116,KP2201B,KP214,KP2202SGA,KP3110,KP3114,KP2212X,KP3112,KP3310,KP2313X,KP2326X,KP223XX,KP3210B,KP2182,KP22308WGA,KP41262CSGA,KP101,KP40562SGA,KP212X,KP35015,KP22315WGA,KP413402,KP413401,KP201A-H,KP22308,KP22306,KP216X,KP3211B,KP41262SG,XXX1342,KP2205LGA,KP2201-B,KP22015WGA,KP2326,KP2206,KP2203,KP22308SG,KP4051XP,KP2801,KP2802,KP1030,KP206A-B,KP2201,KP2311X,KP2202,KP328X,KP3212B,KP4060,KP41140,KP22306WGA,KP41341,KP41342,KP41141,KP41262,KP41142,KP41340,KP40512MSGA,KP40512SGA,KP2182X,XX6908A,KP401,KP41262SGA,KP226X,KP206X

商品及供应商介绍  -  必易微  - 2020-12-26 PDF 中文 下载

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无线充电传输效率测试

配备KEYSIGHT网络分析仪,可测量无线充电系统发射机/接收机线圈的阻抗,电感L、电阻R、电感C以及品质因数Q,仿真不同充电负载阻抗下的无线充电传输效率。支持到场/视频直播测试,资深专家全程指导。

实验室地址: 深圳 提交需求>

车规级电感定制

可定制车规级电感的电流范围0.3~17.9A,尺寸最小1x0.55x0.5mm到最大12.5x12.5x6mm,工作频率100KHz~2MHz,感值范围:0.47uH~4.7mH。符合IATF16949和AECQ-200。SPQ为5K。

提交需求>

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