作者：充电头网

前言

伴随着苹果推出了两款双口充电器，培养消费者的使用习惯以来，国产厂商也推出了多款双口充电器，支持双口同时快充输出，能够满足消费者两台手机的同时充电需求。使用双口充电器可以少携带一个充电器，更加简洁方便。

国内知名配件厂商绿联此前就推出了一款双口40W快充，具备两个USB-C接口，支持双20W输出，可以满足两台苹果手机20W快充。充电器配备折叠插脚，便于携带。下面就对这款充电器进行拆解，看看内部的设计和用料。

绿联40W充电器开箱

包装盒正面印有UGREEN绿联品牌、产品外观图以及名称，支持两部苹果手机同时进行20W快充。

背面印有产品参数和商家信息。

侧面印有小巧便携、折叠插脚、智能保护三大卖点。

包装内含充电器和使用说明书。

充电器主体外壳为白色，表面钢琴烤漆工艺处理，输入端平直切面设计，边缘过渡分明，输出端边角过渡圆润。

机身正面中心印有UGREEN品牌。

输入端外壳为灰色，并印有充电器参数

型号：CD243

输入：100-240V~50/60Hz 1A

USB-C1/C2输出：5V3A、9V2.22A、12V1.67A

输出总功率：40W

制造商：深圳市雅晶源科技有限公司

监制商：深圳市绿联科技股份有限公司

产品已经通过了CCC认证。

充电器配备可折叠国标插脚，便携性好且不会刮伤包里其它设备。

输出端配备双USB-C接口，支持功率盲插，不过还贴心的在接口旁印有区别标识。

测得充电器机身高度为52.11mm。

宽度为48.63mm。

厚度为30.88mm。

和苹果35W充电器对比，体积要小一点。

拿在手上的大小直观感受。

另外测得充电器净重约为106g。

使用ChargerLAB POWER-Z KM002C测得USB-C1口和USB-C2口性能完全一样，都支持FCP、SCP、AFC、QC3.0、PD3.0、PPS、QC4+、Apple2.4A充电协议。

PDO报文如图。

绿联40W充电器拆解

看完了绿联这款40W双口充电器的开箱和测试，下面我们就对这款充电器进行拆解，看看内部的方案和设计。

沿外壳接缝拆开充电器外壳，PCBA模块和折叠插脚通过导线焊接连接供电。

PCBA模块正反面均覆盖黄铜散热片帮助散热。

散热片对应次级的位置粘贴胶带绝缘。

黄铜散热片为焊接固定。

使用游标卡尺测得充电器PCBA模块长度约为47.52mm。

PCBA模块宽度约为44mm。

PCBA模块厚度约为26.29mm。

正反面的散热片通过焊接固定。

PCBA模块背面粘贴导热垫和绝缘麦拉片。

拆下PCBA模块表面的散热片，通过麦拉片绝缘。

充电器内部PCBA模块输入端一览，焊接NTC热敏电阻，EMI滤波电路等。

输出侧焊接一块小板，并打胶填充散热。

充电器PCBA模块正面一览，右上角为输入EMI滤波电路，顶部为电解电容和差模电感，中间为两颗变压器，底部为同步整流小板，焊接USB-C母座和滤波固态电容。

PCBA模块背面焊接整流桥，两颗初级芯片，反馈光耦和贴片Y电容。除整流桥公用外，内部为两路独立的开关电源。

通过对PCBA模块的观察发现，绿联这款充电器采用两路相同的QR开关电源，搭配同步整流芯片宽电压输出，输出电压由协议芯片通过光耦控制的经典架构设计。下面我们就从输入端开始了解各个元器件的信息。

输入端焊接保险丝，NTC浪涌抑制电阻，共模电感和安规X2电容。

输入端延时保险丝规格为2A 250V。

NTC热敏电阻用于抑制充电器接入电源的冲击电流。

共模电感采用漆包线和绝缘线绕制，内部注胶加固。

安规X2电容来自WQC威庆电子，规格为0.1μF。

输入端整流桥来自沃尔德，型号WRMSB40M，这颗软桥通过较软的恢复曲线，比较平滑的关断特性，可以降低二极管结电容达到非常少的谐波振荡产生的效果。

沃尔德WRMSB40M详细资料信息。

充电头网了解到，沃尔德软桥还被OPPO 50Ｗ饼干氮化镓快充、鸿达顺65W 氮化镓充电器、飞频65W USB PD氮化镓充电器、ROCK 65W氮化镓充电器、麦多多65W氮化镓充电器、麦多多30W 1A1C快充充电器等多款产品采用，性能获得客户的一致认可。

高压滤波电容来自AiSHi艾华，其中两颗规格为400V22μF。

另一颗规格为400V18μF。

差模电感采用工字磁芯绕制，外套热缩管绝缘。

两路开关电源的主控芯片均来自必易微，型号KP22308A，是一款针对离线式反激变换器，内部集成650V Mos的高性能电流模式PWM转换芯片。芯片采用ASOP-6封装，带来更好的散热性能；芯片集成谷底导通模式，轻载绿色节能模式，打嗝模式等优化系统效率，可轻松满足六级能效要求；芯片支持8-40V的 VDD 供电，方便满足宽电压输出电源的要求，KP223XXA系列芯片集成不同Rds_on的MOS，满足18~30W不同功率等级的产品要求。

必易微 KP22308A 详细资料。

充电头网拆解了解到，必易微快充芯片还被安克可折叠迷你20W快充、NEOQUICK 65W 2C1A三口快充、宜丽客45W PD快充充电器、THEONE 65W 1A1C快充充电器、紫米新款20W PD快充、品胜迷你20W 1A1C快充、傲基20W PD快充、努比亚22.5W方糖快充等快充产品采用。

另一路同样使用必易微 KP22308A 主控芯片。

两个变压器特写，贴纸信息相同。输出采用多层绝缘线绕制，磁芯采用胶带严密缠绕绝缘。

贴片Y电容来自四川特锐祥科技股份有限公司，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。料号为TMY1102M。

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。

充电头网了解到，特锐祥贴片Y电容除了被倍思高通QC5认证100Ｗ氮化镓快充、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。

对应另外一路的贴片Y电容同样来自特锐祥，参数相同。

EL1019光耦用于输出电压反馈。

另一路光耦型号相同。

输出侧小板正面焊接USB-C母座，协议芯片，同步整流芯片和输出滤波电容。

背面焊接两颗VBUS开关管。

次级同步整流芯片采用必易微KP41262。这是一款用于替代反激变换器中副边肖特基二极管的高性能同步整流功率开关，内置超低导通阻抗MOSFET以提升系统效率。支持High Side和Low Side配置，同时支持系统断续工作模式(DCM)和准谐振工作模式(QR)。

必易微KP41262资料信息。

另一路同步整流芯片型号相同。

输出滤波电容来自钰邦，输出采用330μF和220μF固态电容滤波，耐压为16V。四颗对应两路输出。

USB-C协议芯片来自慧能泰，型号HUSB338C，是一颗高性能高集成度的PD控制器，支持USB PD3.0和PPS以及QC等多种快充协议，适用于电源适配器， 车充等应用场合，提供QFN16封装。

充电头网了解到，慧能泰的PD快充协议芯片已被京东京造、贝尔金、图拉斯、南孚等众多品牌的数十款产品采用。

另一路协议芯片型号相同。

两个USB-C母座采用白色胶芯，过孔焊接固定。

全部拆解一览，来张全家福。

充电头网拆解总结

绿联推出的这款双口40W充电器采用折叠插脚设计，体积小巧便于携带。充电器为双路独立设计，单口支持20W输出功率，双口共计40W，能够满足两台手机的同时快充需求。

充电头网通过拆解了解到，绿联这款40W充电器采用两路相同的开关电源设计，采用必易微KP22308A+KP41262开关电源方案，具有高集成度和高效率优势。输出协议芯片采用慧能泰HUSB338C，充电器内部PCBA模块正反面均覆盖黄铜散热片，整体做工扎实，用料可靠。

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柳莺奚3133苹果电脑为什么充不上电?充电器插上显示绿色 -
蒙维包15111435377 ______ 电池电量在95%以上充电器显示绿灯不充电是正常的.如果是其他情况,可以尝试这样做:插拔一下电源适配器和连接线,再插上电脑,插拔几次充电接头,调整一下角度,看看能不能正常充电.如有疑问,请追问.

柳莺奚3133为什么我的品胜充电器一插上就是绿色,怎么辨别正反? -
蒙维包15111435377 ______ 您好,很高兴为您解答 如果您购买的不是品胜的优能充智能识别这个系列的(这款不用对准正负极,直接放入电池就可以了,充电器可自动识别正负极),那您说的这种情况,应该是您的正负极没有对准,您把电池翻一个面充电就可以了.品胜手机电池充电器,只要放入正确放入电池,指示灯应显示红灯.以下为品胜手机充电器指示灯具体显示状态,您可以参考一下.品胜所有手机电池充电器指示灯设计均为:①不放电池:绿色灯长亮 ②充电状态:亮红灯 ③充饱状态:转绿灯长亮 如上述内容未能解答你的疑问,欢迎向企业知道继续提问.

柳莺奚3133为什么我的座式充电器插上去,显示绿灯啊
蒙维包15111435377 ______ 没什么呀,你充电器查上电,没放电池就是绿灯啊,把电池放上去就成红灯了.如果电池放上去了还是绿灯的话那可能就是坏了.

柳莺奚3133欧瑞特充电器器一插上充电冲电器显示绿色的是电池坏了还是充电器坏了? -
蒙维包15111435377 ______ 这个需要检测一下,用万用表测量充电器的输出电压,空载时电压应该高于额定电压的20%左右,如果低于额定电压充电器就坏了,测量蓄电池电压,蓄电池在没有充电时额定电压在额定电压±20%是正常的

柳莺奚3133新电动车第一次充电充电器一直'红灯不变拔了再插上成了绿的了!停了两三小时插上又变成红的了 -
蒙维包15111435377 ______ 新电瓶一般需充电10~12小时,在此期间红灯一直亮是正常的.如果超过12小时还是红灯亮,那么很可能是充电器有问题了,可找销售商检查、更换.

柳莺奚3133电动车充不进去电是怎么回事?刚插上充电器绿灯就是亮的. -
蒙维包15111435377 ______ 你好: 你没说清楚,刚插上充电器,不插电池,是应该亮绿灯的,你是不是要表述的插上电池后,就亮绿灯,充不进电. 有可能是充电器或电池的原因.正常电池充电转绿灯的条件是,电池的电压达到设到的充饱电压时,就转绿灯.你的情况可能是: 1、充电器故障,使得转灯电压下降了很多,因此插上电池就亮绿灯; 2、电池内部断路了. 自助方法:借个充电器充一下,如果可以充,那你的充电器就有问题,用万用表量下电池的开路电压.如果有电池,那电池是好的,否则电池内部故障,需要送修.

柳莺奚313348伏锂电池充电器插上闪一下红就变绿怎么回事? -
蒙维包15111435377 ______ 电路有接触不良,不要再插充电器,查修电路,避免发生危险.

柳莺奚3133我的电车充电器怎么插上就是绿色儿的.昨天还不这样.
蒙维包15111435377 ______ 电池损坏的几率八分之九十九,充电器八分之一. 如果充电器不充电的时候是绿灯 你的充电器就 是 好的 . 如果是电池问题,电池可以修复的. 什么问题能? 就是因为里面缺电解液--------如果去修理店--他们说的很悬浮---就是加点蒸馏水 -----凉茶也可以. 还是去修下吧,电池没多大问题的------上海加水价格60元,然后他们给充足, 还下价呵呵

柳莺奚3133电动车电池充不进电,插上电源就是绿灯,但是拧着油门的话充电器就变?
蒙维包15111435377 ______ 这个现象基本说明充电器是好的,因为拧油门电机会消耗充电器的电,充电器就像给电瓶耗电——充电一样,显示充电状态红灯.充电是绿灯,结果有两个:1电瓶坏,内部断路,无法充电或者内阻变得极大,充电电流极小,充电器不认为是在充电,所以不亮红灯.2,电瓶与车子的连线或者保险断,充电时实际没有连得上电瓶,所以亮绿灯.卸下电瓶直接夹接充电器就知道了.

柳莺奚3133电池鼓包,行程短,我拆开加了点稀硫酸,后来插上充电充电器一直绿色,怎么回事,还有补救的方法吗? -
蒙维包15111435377 ______ 没有办法了,电池的构造是:一块电池12v,(一般是12伏)分6格,每格2伏,相互隔开,当电池充鼓后,里面的结构发生了变化,可能导致夹层破裂,你加液后会造成相互连接,换新的电池吧.注意以后电池不要再加液了,现在电池全部是免维护的.同时买个好点的充电器.