我的新版1543x4的DAC！呵呵~~

4059

<img src="attachments/dvbbs/2005-8/20058121743102.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058121743102.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
前级还没做好！准备在1543后面加个前级！哈哈~~

4059

AKMY5

以下是引用4059在2005-8-9 20:53:00的发言：
我有好多！但没资料不会用！呵呵~~~你有图纸吗？

实际上就是一根导线穿了连只磁珠，然后中间抽头，接了一只220P或2200P的电容出来，做成派型滤波的形状，用的时候只要把电源从边上一端入，另一端出，中间的给它接地就OK，过滤数字干扰杂波很有效

4059

我有好多！但没资料不会用！呵呵~~~你有图纸吗？

4059

是TDK的！
<img src="attachments/dvbbs/2005-8/200589204945677.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/200589204945677.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

yq777

偶要下了,大家886

yq777

可发现反电动势达到67百伏,吓坏了,赶紧拆下来

AKMY5

先上用在220V进线的
<img src="attachments/dvbbs/2005-8/20058914613255.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058914613255.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-8/20058914627211.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058914627211.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-8/20058914640930.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058914640930.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

再上用在低压直流回路里的
<img src="attachments/dvbbs/2005-8/20058914718342.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058914718342.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-8/2005891473466.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/2005891473466.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

220V交流进线的滤波可以自己做，我以前发过帖，找不到在那里了，再重新上图
<img src="attachments/dvbbs/2005-8/2005892526118.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/2005892526118.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

正面
<img src="attachments/dvbbs/2005-8/200589261725.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/200589261725.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

装进热缩套里，为了防止刺穿漏电，背面加了一片过塑相片的那种硬塑料纸
<img src="attachments/dvbbs/2005-8/2005892752375.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/2005892752375.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

做好的样子，自己做的好处就是里面可以做成有滤共模的和差值的，而不象买来的成品，只有共模的，但是，要注意，交流220V端用的EMI滤波自己做的话，要注意用的电容是220V电EMI专用的X2电容，就是里面串了一只100欧电阻做保险的那种，这样在有高压或电容击穿时可以烧断，起到保险的作用，保证设备人身安全！这一点切记！不能找普通的来随便用！
<img src="attachments/dvbbs/2005-8/20058921111307.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058921111307.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

给你看看我在自己MD机上的用法

<img src="attachments/dvbbs/2005-8/20058921353393.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058921353393.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

这就是在交流出线低压端也用上了EMI，效果很好！但是也不是我独创，虽然我事先没参考过，不过后来在一些工业设备上也见到这样的应用！有机会我再上图大家看看
<img src="attachments/dvbbs/2005-8/2005892163045.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/2005892163045.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

那种小的滤波磁珠在直流端的应用
<img src="attachments/dvbbs/2005-8/20058921818403.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/20058921818403.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

yq777

4059

AKMY5

太多了！有8根！打起来很费工！呵呵！献丑！

上面也让文招兄给笑话了！说我经常给LP打。。[em11][em11]

但是这样做我认为还是有效果的，不仅仅是为了布线的美观和紧固！因为，S型的导线在分布均匀的场中，它受的感应是可以抵消的，打得紧凑线间的分布电容和分布电感也不一样！还是有影响

有更知道这方面的DX请上来说说！[em11]

返璞归真

AKMY5

呵呵！我原来为了实验CS8412和TDA1311而做的一个DAC解码，没有正式装机，只是为了实验性能的
在上面有CS8412，陶瓷封装的54HC04，和TDA1311一共三片IC，声音很不错，为了极端提高性能，所有的IC的供电的退偶都是单独成系统的，连到电源还有接电源的地线也完全分开！也就是说采用了放射状布线，事实证明对提高信噪比很有好处！
所以造成有8线的辫子！（CS8412分模拟和数字供电，我也分开了）呵呵。。。
<img src="attachments/dvbbs/2005-8/200586214845372.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/200586214845372.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="attachments/dvbbs/2005-8/200586214853330.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/200586214853330.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

数数看有几根线？[em11]
<img src="attachments/dvbbs/2005-8/200586214859549.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/200586214859549.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />


晚一些我找全资料再上来说说EMI我一般是怎么用的。：）

4059

老兄打过四线的或五线的吗？我想看看怎么打紧的！我那是四线的！