 |  | | | | 目前紧需要EC28的磁芯骨架资料，有的就帮忙发下，谢谢！！！ |
|
|
|
|
| | |  |  | | | | | | | 在某网站的新闻里看到一个惊悚的字眼：“基因芯片”，感觉像是科幻电影里面才出现的东西，但是不知不觉间，我们的科技已经发展到这个地步了，据说可以对心血管疾病、神经系统疾病、内分泌系统疾病、免疫性疾病、代谢性疾病等早期诊断率将大大提高，而误诊率会大大降低。但是尖端的设备，从业人员需要有十分专业的技术。 |
|
|
|
|
|
|
|
| | | | | | | 谢谢王工了，我产品都出产了， 
今天王工怎么老翻我的老底  |
|
|
|
|
|
| | | | | | | | | | | | | 那是个用俩EER28/34/11做的120W反激铝壳电源，此类铝壳电源的经典线路是BJT做的对称半桥，客户、老板说俺乱搞，结果…… |
|
|
| | | | | | | | | | | | | | | 我也做了个120W反激铝壳电源，用的是EE40磁芯  |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | 卧式EE40？变压器高25mm？那铝壳得38mm高了 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | 变压器25mm，板2mm，板底离底壳空间3mm，用35mm高的壳足够了 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | 啥铝壳？
铝壳板厚1.5mm；铝壳内底面到PCB底层4mm；PCB板厚1.6mm；铁网厚0.6mm；用35mm高的铝壳，PCB顶层→铁网内底面只有27.3mm；即使变压器绕制很规范尺寸不超标、空间余量只有2.3mm，＜3mm的安规要求；再有能保证铁网无毛刺？插件不浮高？ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | 你的铝壳电源过认证了没？AC-DC用的EE40卧式骨架要高过25mm，DC-DC用的可以低 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | 主要做适配器多，适配器有过3C跟CE认证，铝壳电源刚刚开始做，认证说白了就是买证 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 那是08年的事了，我刚开始的时候几个产品是真能过3C跟CE认证的，现在除了定做的几种，其它做市场的基本是过不了这些认证的，现在基本这些都是可户自己贴牌，自己去过相应的认证 |
|
|
| | | | | | | | | | | | | | | | | | | 你做的这个比现在市面上的比价格有没优势，我最近打算做一个用3844的双管正激，看成本有没办法跟半桥竞争 |
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | 王工早啊，这是我的习惯，晚上没吃点东西总觉得肚子空空睡不着  |
|
|
| | | | | | | | | | | | | | | | | | | | | 目前没啥优势，特别是用在高电压输出机种上。但是发展眼光看问题……不打算长期做没戏 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | 开始想搞APFC，用L6561做的；后来说成本高，又不让增加变压器种类，改成3842了；再后来说俺乱搞…… |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | 现在做市场的竞争太激烈了，利润越来越低，你这样搞你老板肯定有意见了 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 像100W-150W的产品，前几年的利润有25%以上，现在有10%就算不错了，以前在打工就一技术为主，现在自己创业就以成本、利润为主了，人在江湖身不由己，现在算是体验到了 |
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 当老板好办，知道啥时候该咋样做产品，设计约束少、更自由 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我浪费了好多时间了，做了两年的适配器，等产品都定型就闲着没事，去年玩了一整年的网游，今年也经常看电视，最近才经常上这个论坛逛逛，多学点东西 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 你是不了解的了，我现在就根据要求做一些要求高的比较少，做市场的95%都是便宜货，刚开始做的时候我也想做质量好，比市面档次高的，但可户不理解，说什么你不要跟我说技术，什么保护功能我也不懂，别人做XX价格也可以用，你只要按这个价格给我做就可以了，我  |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 老板受到压力会转移给打工的，打工的要承受莫名其妙的压力，因为客户的要求老板不一定全部给打工的讲，会有保留的。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 各有各的难处，沟通好的老板跟总工可以成好朋友，不好的各怀鬼胎 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | 用EE40卧式变压器装38mm高的铝壳，线包顶部要做绝缘，工艺上难处理，生产有意见 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 估计你用的是DC-DC骨架、不锈钢铁网（无毛刺），不怕外壳受力形变后刺穿线包 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 你换电镀的铁网试试，内层有毛刺，组装的时候那么一推，变压器铜线都刮出来了……  |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我昨天跟你提的哪个12V5A的适陪器，用EC28骨架，有点偏高，要把骨架上两个耳朵剪掉 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 自己是老板，咋着都中。要是给别人打工，肯定挨批：乱搞！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 王工对“乱搞”这个词用的挺熟的 ，我这个产品以前是用在品字插的，壳比较高，客户硬要同样的电路换另一个壳 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 你是老板你除了客户还怕谁：干活的哪敢说老板“乱搞”？
要是俺命令别人剪变压器耳朵，说不定连头都能切掉！还会讲俺设计烂货让他做叫老板屌俺！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 如果你老板不尊重你的话你，你也可以屌他，说句不好听的他也要靠你们吃饭，自己有技术怕什么 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 有空余时间可以去市场逛逛，看什么产品比较有前途，或跟业务打好关系，就算没法单干也可以跟人合伙 |
|
|
| | | | | | | | | | | | | | | | | | | | | 低输出电压不过认证的短单，可考虑用5S1565之类的FPS做正反激（要附加TON定时电路），市场上好像有很多便宜的旧IC |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | 兄弟能找到恁多专业著作，找找看三星或仙童韩国分部的资料，可查出详细，俺是爱莫能助 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我说过，只要成本比市场上半桥低，质量满足要求，我就敢用，越特殊越好 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5S、8S系列都用过，5S保护状态锁定、8S自恢复 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 俺用8S做的适配器拿过CCC，证书只用来当招牌，都没生产过 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 成本还不是你们老板说了算：用L6561说贵、换3842还贵、RCC便宜是因为用500V的MOSFET，600V的别提——还贵 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 成本是客户说了算，客户给你定的产品，一般价格也会给你，你超出了他不要，我们是同条船上的 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 那俺给你个规格，可是客户电话上亲自讲的：
输入电压：15-23VAC
输入频率：50-60Hz
输出电压：13VDC
输出电流：6-6.5ADC
电气隔离：无要求
尺寸：55×40×20mm（长×宽×高）
PCBA内部最高工作温度：70℃以↓
PCBA价格：￥10以↓
客户称其有样板，要了1年多没给 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 有这种概念的老板是没￥途的：客户说了算的是售价，不是成本！成本是客观规律和市场规律说了算。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 表达有误，当现在做市场的还勉强可以，就是售后比较麻烦，可户订做的利润还客观，出口一般也没售后问题，但量不大是个问题 |
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 去年做了一批4.2V10A的产品，出口俄罗斯的，用料都很足，做了两批第一批1000个卖了，第二批3000个还没发，那个客户在俄罗斯那边不清楚什么原因破产了，一个20多成本  |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 4.2V10A?难不成是用大号BJT做的反激铝壳？ |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 你们那边很多翻新的TOP集成，PIN脚看起来很亮，焊接后发黑、虚焊，很多用那种集成做的电源会炸 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我一般不用这些的，都是有渠道进的散新货，最差也要翻新镀镍的，一般不会有这种问题 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 楼主的专业资料都哪整来的？有没有SEC和FSC关于SPS和FPS的资料？ |
|
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 这里是BBS，又不是给你下单，不怕丢气势（说不定客户的目的是灭你气势），可讨论技术可行性 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCBA内部最高工作温度：70℃以↓
咋实现？
只给￥10，不做拉倒 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 器件最高温度70，那各器件余量要很大才行，10元我做不出来 |
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 接触过一次就知道他懂不懂了，他说不懂那还找我做什么产品 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 那样会挨客户屌！要给客户戴高帽，不能说客户不懂，否则生意砸了！商家大忌 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我接触的客户最多就懂点皮毛，很少有人什么精，又要搞贸易还要搞技术 |
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 说不定客户真有样机，从贵屿那边淘个便宜旧货，真给你当样板让你做……看你咋整 |
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 在浙江帮别人开过厂（当然不是俺一个），后来没戏…… |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 那次还是打工（开厂元老），唯一一次当老板是14年前当个体户 |
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 老兄接的定制单看来利润都比较可观，估计剩下不咋的的给俺老板了 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 现在这行业利润能高到那去？你也别以为你们老板能赚多少，2008年我刚出来的时候利润25%，个别到40%，现在10%就不错了 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 别以己度人：天天接73楼那种单，不赔钱算好。再一个，你利润高，不见得别人利润跟你一样高。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 也不能这么说，这个行业不像以前，现在比较透明了，除非是特定电源，普通市场上拿个产品过来，多少成本看一下就知道个大概 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 看老板的意思是要用非安规价格做安规产品，还不能赔钱！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 打个比方，说Y2电容吧？非安规一个0.045，安规要0.095，一个产品用个10个，要查多少了，还有其它的，单器件价格差别就不是一般的大， |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 这样讲会挨屌：标准能过CE的铝壳电源，初级对地最多用5个Y2电容，次级对地俩，多出来仨你贪了？没贪给俺↓成本！ |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 用仨过CE的俺都有，问题是合格Y电容一个价钱顶俩仨不合格品，咋能拼过成本？ |
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我用三个的时候就是初次级各接一个到外壳，还有初次级地到地一个， |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | L、N各接一个→地，-V→地一个，输入输出都有了。 |
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 铝壳电源一般是输入AC各接一个到外壳，初次级地各接一个到外壳，初次接一个，五个 |
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 一个Y1电容能买俩仨Y2了，难怪老板说俺的设计成本高！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 还是当老板好啊：用次品Y2做电源，一年出货10kk，光材料费少说都能省1kk，第一年买豪宅、第二年买豪车、第三年养小三、第四年买官，即使儿子癫车撞了人都能hold住…… |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 是的：如果都用次品Y2电容做电源，价格会做贱，现在下手太晚，反而做死。用正经Y1电容做电源的更是没活路了…… |
|
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 不管咋整，做非安规铝壳最省，买5、6个不合格的Y2用的钱还买不到一颗合格的Y1 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 那也不行啊，AC端接壳两个我不敢用Y2，那会电死人的 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 本想要你的资料呢，结果被问上了。
俺用IC只看DATASHEET，没看参考设计的习惯 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 正反激拓扑可以问论坛前辈“电源蚂蚁”，记得他在21IC的BBS头像是那拓扑 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我认识的蚂蚁哥PowerAnts
不知道是不是你指的那个 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 你们认识那更好办了……
俺是想要三星或FSC的资料，看自己做的线路是不是早都有了 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 先声明：俺可不认识PowerAnts真人，他有那拓扑，估计SEC和FSC应该同样有，还烦请楼主找资料了。 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | 5S是变频系列，类似SANKEN的STR系列，经典应用都有外同步信号，单独使用的不多。 |
|
|
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SEC和FSC的资料很难找？本想让弟兄帮忙，没想到自己先拿资料出来…… |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 这还是DATASHEET，没讲到正激应用，更没有TON定时电路 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我记得你好象说没看应用的习惯，只看DATASHEET |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5年前PI诉FSC那场官司，告掉了很多FPS的优点。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 如果被告的掉的，就不算是FPS的优点了，拿人家的专利也算优点 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 专利是保护市场的，不是保护技术的。很多专利并没有让发明人或设计人受益。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TOP属于电压模式控制，FPS属于电流模式控制，按理说FPS的控制方式更先进，为啥会被告至今俺都没搞明白，如有这方面资料请上传。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 王工还能推荐几个内置MOS管的IC吗？100W左右， |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 英飞凌也有跟FPS相似的芯片，名字也都差不多，都是765代号 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 一般人都不理解，认为FPS没那功能。其实思考一下FPS系列的SS端为啥后来变成IPK即可 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 感觉PI的比较贵，发热也很严重，不明白PI怎么反而那么好卖 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 三脚的第一跟第二代的，第四代到现在的第六代都是6脚了 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 上次有个朋友介绍了一批TOP200系列的散新货给我，204还好点，203有20%上电炸机 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 十几年前都有那些型号了，市场上卖的IC搞不好都是N手料了，搞维修差不多，搞生产你能一个一个刮脚处理？ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 脚是全新的，不清楚质量怎么那么次，第二代的就不会，货也多，质量也不错 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 邮购过你那边的“合资”管子，MT200封装的管子敲开外壳以后发现里面是个焊在TO-3P金属片上的小管芯！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |  也太夸张了，我见过接脚，电镀，翻新的到不少，但仔细看都能看出来的，还没见过有自己封装的，也没听人说过，你确认是我们这里的？ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 早了：大概2001年的事了，绝对是从你们那里邮购的。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 01年我才刚高中毕业进如大学校门 ，我说呢要是现在有这种事情我在这里就算没见过也该听说到 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 很奇怪你搞来的COOLSET会成本低，难不成都是用旧料？ |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 邮购目录上都没COOLSET的型号，你那边找不到？ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 王工，你说话能不能明白点啊，不懂您的意思，你指的邮购目录上是那里？我这里也没有，剩下的都给客户带走了，估计坏机里能找到几个 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 你们那边的商家，很多都是《无线电》、《电子世界》、《家电维修》的邮购先进单位 |
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | COOLSET没停产，不像TOP、5S、8S那些停产的IC |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 正规代理那里的COOLSET不便宜，远不如用国产IC、MOSFET做起来划算。估计客供给你的COOLSET有问题。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 这个客户是朋友介绍的，也不算是客户，他是做IC生意的，那时他拿了一个样品跟COOLSET第二代的IC让我们给他做12V6A跟19V4A的产品，但他提供的板是用三代的3A380，线路差很多的，你也知道的，那时出现大小波，对于内置MOS管的IC还没见过出现这个问题的，花了我不少时间 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 12V2A用3A80，在这边会被屌死
碰见这种客户，这边会要求用12V2A的料做更大功率的！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 王工今天没放假？不是3A380记错了 ，是3A2065，DIP封装的，利用线路板覆铜散热的 |
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 看来你那边做产品是乱用IC：不考虑成本，即使是COOLSET，其高温内阻仍然可以比低温内阻大2倍，传导损耗不易下降；更何况一般COOLMOS的弥勒电容占输入电容比重大，开关损耗不易处理。
开始怀疑你的诚信：讨论问题乱搞！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我的产品都是成熟的3843+MOS方案，TOP系列做过几次（有批量货原且价格合理），COOLSET只做过两次，那个是客户特殊要求的，只要达到他要求的输出功率，能工作就可以了，没什么要求， |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 以前老板拿个假DELL的19V3.42A当样板让俺做，是3843做的！测输出短路时PCB冒烟！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 很正常的，我拿过的样品现在基本都用PCB线当保险丝，通用电压输入用1N4007，所以去年我们放弃没做笔记本适配器了， |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 这世道还是撑死胆大的饿死胆小的，环境如此，难怪老板天天吼俺做不来别人那样的利润！ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 你老板要是不懂技术就这样，如果你不做就说你不行，你做出来了到时质量不合格又要怪你 |
|
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我是指不懂技术的，懂的话他自己心里有低是不会乱要求的 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 讨论贵讨论，有必要攻击人吗  ，乱用IC到是真的，不考虑成本那是不可能的，如果有一批IC价格有优势，那肯定做了。像帖牌的笔记本电源适配器，我以前刚做的时候65W出厂价格一个18，现在压低到一个12，去年我就没做了，如果现在有一批IC做出来的价格能比市场用3843+MOS的低，我肯定做，这种产品只要价格低，销量不是问题的 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 搞技术不按正常规律办事想失败？又想走邪路又想别人说你好本身都是矛盾的。俺这边即使是做白牌电源都是电气性能、老化、Hi-Pot全测，为此跟老板顶了两年多的牛，照你的理解俺天天被别人进行人身攻击。 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 算我理解错误吧
现在做自己牌子的量少，垃圾产品又不想做，今年主要给别的厂做配套电源比较多， |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | “垃圾产品又不想做”——估计做过。
换个角度从市场看环境，还是垃圾产品能“发展经济” |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 前年做的适配器严格来说也算垃圾产品，但比现在市面上的还是要好太多了，毕竟安全问题能保证
不像现在市场上的产品，名义上是隔离的，但打高压很多都过不了
但客户在意的还是价格，竞争不过就退出了 |
|
|
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 除非额外附加电路，否则输出短路持续大电流所占比例很高，而且很多变压器偷料，变压器饱和几乎100%输出短路持续输出大电流 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我去年拿到的几个样品到是没这个情况，今年就不清楚了，不知道什么时候市场才能回归正常 |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 听老板讲，你们那边做笔记本适配器每月出货超100k的厂家都好几个？ |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 我这边月出货超100k就一个而已，其它一般都是30K左右拘多，你指的应该是揭阳那边， |
|
|
|
收藏
分享
津公网安备 12010402000296号