作者查詢 / tonybin
作者 tonybin 在 PTT [ Electronics ] 看板的留言(推文), 共236則
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1F→:原po的問題是DCDC converter IC的EMI對策.不是板子05/31 12:33
2F→:以PCB加被動元件來解也是可以啦.只怕原po會掉單...05/31 12:41
1F→:要買那張桌子大概都會有那些套件05/21 18:09
1F推:一個latch就可以04/18 00:32
3F推:跟電容有關,不過是FET的雜散電容.google RCD, snubber試試04/02 00:35
2F→:所以電解電容耐壓會選工作電壓2倍以上的 即便如此該爆的03/21 02:04
3F→:時候還是要爆的03/21 02:04
1F推:快速可,google的到型號.R就要看你系統流過的電流再決定03/17 21:01
5F推:一般relay是電磁鐵 線圈 所以開關電都會產生反向感應02/22 15:38
6F→:電動勢 這會造成再次開關電狀態的不明.加二極體限定此感應02/22 15:39
7F→:電動勢放掉02/22 15:40
1F→:1.有音頻的noise source 2.LC諧振 1是源頭 2是表徵02/03 12:38
2F→:低頻的power regulator就是主要的原因,會隨著power和GND02/03 12:39
3F→:跑到系統別的地方02/03 12:40
4F推:所以那個power inductor非常容易產生audible noise02/03 13:04
1F→:下面那組像是snubber, 用RC來吸收一些雜波01/31 01:00
4F推:培養signal integrity的概念為先.這是訊號在一塊板子整體01/27 21:53
5F→:走法的解答.以SI觀點去統合power integrity,EMC以及PCB01/27 21:54
6F→:layout. 那些名詞摸久聽久就熟了.01/27 21:55
7F→:High Speed Digital Design. A Handbook of Black Magic01/27 21:56
8F→:還有就是烙鐵用熟一點= =01/27 21:57