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拆解报告:凯控源36W双USB-C快充充电器

 1 year ago
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最近充电头网拿到了一款凯控源36W双USB-C口充电器。这款充电器采用折叠插脚设计,体积小巧,方便携带,并配备多款插脚用于国内和海外多国销售。下面充电头网就对这款充电器进行开箱和拆解,看看内部的设计和用料。

值得一提的是,此前充电头网还拆解过凯控源36W双C口氮化镓充电器、凯控源45W双C充电器两款产品,欢迎查阅。

凯控源36W双C充电器开箱

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 充电器采用和苹果快充一样的经典方块造型设计,PC材质白色外壳,表面磨砂处理,边角过渡圆润。 

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 输入端配备可折叠美规插脚携带方便,两侧加入双翼设计使用更稳定。充电器一大特色便是插脚端外壳做了特殊设计,可组装其它规格插脚,使其可使用地区更加广泛。 

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 厂家还贴心为充电器设计了澳规、欧规和英规三种可组装插脚。 

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 如组装澳规插脚场景一览。 

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 机身一侧印有充电器参数型号:KKY36-A5029-02输入:100-240V~50/60HZ 1AC1/C2输出:5V3A、9V3A、12V2.92A、15V2.33A、20V1.75AC1+C2:9V2A、5V3A、12V1.5A(36W Max)制造商:深圳市凯控源科技有限公司充电器已经通过了FCC、CE认证。 

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 输出端配备两个USB-C接口,均为黑色胶芯。 

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 测得充电器机身高度为51.19mm。 

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 宽度为51.2mm。 

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 厚度为28.21mm。 

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 和苹果35W充电器对比,整体稍小一些。 

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 充电器拿在手上的大小直观感受。 

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 测得充电器净重约为86g。 

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 使用ChargerLAB POWER-Z KM002C测得USB-C1口支持FCP、AFC、QC3.0、PD3.0、PPS、Apple2.4A充电协议。 

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 并且具备5V3A、9V3A、12V2.92A、15V2.33A、20V1.75A五组固定电压档位,以及3.3-11V3A、3.3-16V2.25A两组PPS电压档位。 

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 测得C2口兼容协议和C1口的完全一样。 

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 PDO报文也完全相同,两个C口单口输出性能完全相同,支持功率盲插。 

凯控源36W双C充电器拆解

 看完了这款充电器的外观和输出测试,下面就对这款充电器进行拆解,看看内部设计和用料。 

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 沿外壳接缝拆开充电器外壳,外壳采用超声波焊接封装。内部PCBA涂有灰色胶水进行导热固定。 

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 取出内部PCBA模块,电路板背面粘贴导热垫用于散热。 

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 输出侧小板与变压器和电容之间大面积打胶填充。 

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 电路板背面使用导热胶粘贴大面积导热垫。 

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 清理掉胶水,充电器输入端焊接X2安规电容共模电感,高压滤波电容等元件。 

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 输出端焊接滤波固态电容,还焊接一块降压小板,小板上焊接USB-C母座,降压电感和固态电容。 

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 使用游标卡尺测得PCBA模块长度约为45.85mm。 

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 PCBA模块宽度约为45.62mm。 

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 PCBA模块厚度约为21.89mm。 

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 PCBA模块正面一览,左上角为变压器,在中间位置为高压滤波电容和差模电感,电容右侧为共模电感和安规X2电容,底部焊接一块降压小板,小板背面焊接两颗降压电感。 

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 PCBA模块背面焊接整流桥,合封氮化镓芯片,贴片Y电容,光耦和同步整流芯片。得益于使用了东科的高集成电源方案,充电器的电路得到了极大简化。 这款充电器采用反激开关电源,固定电压输出,输出电压通过两路独立的降压芯片,内置协议功能,能根据负载需求,调节输出电压,并支持双口功率自动分配。下面我们就从输入端开始了解各个元器件的信息。 

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 输入端贴片延时保险丝焊接在PCB背面,规格为3.15A 250V。 

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 安规X2电容容量为0.1μF。 

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 共模电感采用漆包线和绝缘线绕制。 

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 整流桥型号为RMSB310,是一颗快恢复整流桥,规格为3A 1000V。 

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 高压滤波电容品牌为Niani。 

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 其中一颗规格为33μF 400V。 

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 另外一颗规格为22μF 400V。 

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 差模电感采用工字磁芯绕制,外套热缩管绝缘。 

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 充电器主控芯片来自东科,型号DK036G,是一款高度集成的 650V/400mΩ GaN HEMT 的准谐振反激控制 AC-DC 功率开关芯片。DK036G 检测功率管漏极和源极之间的电压(VDS),当VDS达到其最低值时开启功率管,从而减小开关损耗并改善电磁干扰(EMI)。 DK036G 极大的简化了反激式 AC-DC 转换器的设计和制造,尤其是需要高转化效率和高功率密度的产品。DK036G 具备完善的保护功能:输出过压保护(OVP),VCC 过欠压保护,过温保护(OTP),开环保护,输出过流保护(OCP)等。 

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 东科DK036G氮化镓合封芯片支持250KHz开关频率,待机功耗低于50mW,内置高低压输入功率补偿电路,内置高压启动,采用PDFN5*6封装,适用于氮化镓快充,电源适配器以及辅助电源应用。 

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 变压器采用胶带严密缠绕绝缘,次级采用多层绝缘线绕制。 

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 两颗贴片Y电容来自四川特锐祥科技股份有限公司,型号TMY1102M,具有体积小、重量轻等特色,非常适合应用于氮化镓快充这类高密度电源产品中。 特锐祥专注于被动元器件的研发、生产及销售,注册资本1亿元。旗下有自主电容品牌两类:SMD TRX及DIP TY电容器,TRX将致力于陶瓷材料的研究,以拓展更多品类的应用,为客户提供更多的解决方案。 

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 充电头网了解到,特锐祥贴片Y电容除了被麦多多100W氮化镓、OPPO 65W超级闪充氮化镓充电器、联想90W氮化镓快充、努比亚65W氮化镓充电器、倍思120W氮化镓+碳化硅PD快充充电器等数十款大功率充电器使用外,也可应用于海陆通、第一卫、贝尔金等品牌20W迷你快充上,性能获得客户一致认可。 

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 1019光耦用于输出电压反馈。 

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 同步整流芯片来自东科,丝印100R15S,实际型号为DK5V100R15S,是一款无外围的同步整流芯片,内置100V耐压,15mΩ导阻的同步整流管,具备自供电技术,可直接替代肖特基二极管,具有极低的正向压降和极低的温升,提高电源的转换效率,并改善EMI。 

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 东科DK5V100R15S支持CCM/DCM/QR工作模式,内置智能检测,无需同步信号,并且无需外部元件,适用于USB PD快充,电源适配器及LED驱动等,采用SM-7封装。 

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 输出侧垂直焊接两颗固态滤波电容,电容右侧焊接降压小板,用于两个USB-C口输出。 

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 两颗输出滤波电容来自湖南盛通,为固态电容,规格均为470μF 25V。 

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 拆下降压输出小板,小板正面焊接滤波电容和降压芯片以及USB-C母座。 

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 小板背面焊接两颗降压电感,电感采用热缩管包裹绝缘。 

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 输出采用富满云矽XPM52C内置协议功能的降压转换器,进行降压输出。XPM52C内置降压开关管和协议功能,支持根据输入电压调节输出电压,支持65W输出,内置多种快充协议,支持多口应用智能降低输出功率,芯片内置完善的保护功能,适用于车充和快充以及插排应用,采用QFN4*4-16封装。 

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 富满云矽 XPM52C 详细资料。 

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 另外一路输出也是采用XPM52C降压芯片,两颗芯片支持协同使用,单口全功率输出,双口自动降功率。 

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 输入与输出滤波电容都来自湖南盛通,规格为150μF 25V。 

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 另一颗电容规格相同。 

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 两个USB-C母座采用过孔焊接固定,黑色胶芯不露铜。 

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 全部拆解一览,来张全家福。 

充电头网拆解总结

 凯控源这款36W双口氮化镓充电器采用折叠美规插脚,支持全球宽电压,携带方便。并配备了澳规、欧规和英规三款插脚,无需额外购买转换器。充电器具备双USB-C输出,支持20V输出,可用于笔记本电脑充电,并且支持3.3-11V3A、3.3-16V2.25A两组PPS快充,对安卓苹果手机兼容都很好。 

充电头网通过拆解了解到,凯控源36W氮化镓充电器内部采用两块PCB组合焊接,分别焊接开关电源模块和降压电路,提升空间利用率。采用东科半导体的氮化镓快充电源方案,内置DK036G氮化镓合封芯片和DK5V100R15S同步整流芯片,外围元件非常精简。输出使用两颗富满云矽XPM52C同步降压芯片降压输出,芯片集成度高,协议全面。输出滤波固态电容来自湖南盛通,内部做工扎实,用料可靠。


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