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作者 beagle 在 PTT [ Electronics ] 看板的留言(推文), 共1245則
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1F推:PLL 鎖相環電路, 不過你的需求是什麼?09/24 15:06
4F→:方波的 duty cycle 也會影響到輸出吧09/24 15:56
5F→:如果頻率不高, 我印象中 4000 系列的 IC 有鎖相環09/24 15:58
1F→:DC/DC Converter 的 layout 學問可大了 ~"~09/20 19:24
2F→:最麻煩的還不是穩定電流,而是斷斷續續來來回回的切換電流..09/20 19:26
3F→:DC/DC Converter 那邊也要接地, 你的圖上沒有畫出來09/20 19:27
5F→:10V 那端 1A 去就 1A 回09/21 01:56
3F→:USB 轉 printer port 多半只能接 printer09/19 11:53
4F→:如果 ICD 原廠有出, 可以買原廠的...09/19 11:55
5F→: ICE 原廠沒出的話, 買其他家做的多半沒用。09/19 11:55
1F→:http://0rz.tw/444Np 這顆 chip 光華賣 30 元而已09/16 16:18
2F→:有電路圖和簡單的解說, 公式計算等等...09/16 16:18
1F推:因為 OP-Amp 的特性, 在某些組態會自動把兩邊電壓調到一樣09/11 14:03
2F→:並不是真的短路, 不會有大電流流通的。09/11 14:03
1F→:買條 NULL Modem 線 (或 NULL Modem 轉接頭和 RS232 纜線)09/08 14:15
2F→:然後兩邊都開超級終端機, 設定對的話就可以傳了~09/08 14:15
1F推:1 和 2 的難度怎麼差那麼多? XD09/08 14:11
2F→:回答第二題, 用 fftw library 做傅利葉後再濾即可09/08 14:12
3F→:有必要的話把清掉不要的頻段之後的 FT 資料再合成回波形09/08 14:13
1F推:你說的四個都有關, 不過我猜主要還是圈數太少&磁場太弱09/05 12:14
2F→:不知道小燈泡比較容易點亮, 還是 3mm LED 比較容易點亮09/05 12:18
1F→:有~ 直流馬達當發電機用~09/01 21:04
6F推:好像很有趣, 我也想做一個看看...09/01 11:15