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作者 beagle 在 PTT [ Electronics ] 看板的留言(推文), 共1245則
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Re: [問題] led亮度不一樣?
[ Electronics ]11 留言, 推噓總分: +5
作者: marines31 - 發表於 2007/08/31 22:40(18年前)
5Fbeagle:用電阻調的話,是不會缺啦,但怎麼看好像都會有點蛀牙...09/01 00:35
8Fbeagle:色彩校正是什麼意思?09/02 11:32
10Fbeagle:喔...你是指像超大電視牆那種需要顏色夠準確的場合囉09/02 13:21
[請益] 需要8051連接ADC0804和RS232的電路圖
[ Electronics ]5 留言, 推噓總分: +1
作者: smallyu426 - 發表於 2007/08/31 21:59(18年前)
4Fbeagle:我剛好在做,可是我沒有圖,是直接插在麵包板上... ~"~09/01 00:43
5Fbeagle:真的不難,自己試試看吧09/01 00:44
[問題] 將3.6V為1、1.6V為0轉成TTL電位準的方法?
[ Electronics ]4 留言, 推噓總分: +1
作者: danqing - 發表於 2007/08/28 18:40(18年前)
2Fbeagle:好帥, 這種 RF 模組有附天線耶... :D08/29 00:36
[問題] 請問有沒有3V轉12V或是6V轉12V的升壓晶片
[ Electronics ]3 留言, 推噓總分: +2
作者: likuanhui - 發表於 2007/08/28 14:16(18年前)
1Fbeagle:On Semiconductor 的MC34063A, 一顆 30 元, 光華商場買得到08/28 18:30
3Fbeagle:看耗電量吧,100mA以下的話,四顆電池也是可以用一天...08/29 13:11
[問題] led亮度不一樣?
[ Electronics ]22 留言, 推噓總分: +7
作者: marines31 - 發表於 2007/08/27 17:36(18年前)
12Fbeagle:把 LED 串聯起來就保證電流都一樣大了... 不過電壓就要提高08/28 03:18
13Fbeagle:如果每顆 LED 要能夠分開點亮, 就只好做定電流驅動了...08/28 03:20
[問題] 請問電子工程專輯
[ Electronics ]1 留言, 推噓總分: 0
作者: qubit - 發表於 2007/08/22 22:00(18年前)
1Fbeagle:你要照他的格式寫電話號碼, 從國碼 886 開始...08/23 17:51
[問題] 請問一下除法器
[ Electronics ]4 留言, 推噓總分: +4
作者: sasako - 發表於 2007/08/21 21:28(18年前)
3Fbeagle:這時就要回想一下, 直式除法是怎麼除的... 道理一樣...08/22 17:54
Re: [問題] 請問製作小量PCB
[ Electronics ]19 留言, 推噓總分: +3
作者: MasterChang - 發表於 2007/08/17 15:15(18年前)
1Fbeagle:真便宜!08/17 15:39
2Fbeagle:這是大客戶VIP價,還是一般民眾委託也有這價錢?報價是台幣嗎08/17 15:40
6Fbeagle:文中是說噴錫面08/17 16:08
11Fbeagle:照這樣說來真的是超便宜的耶, 我打樣品一次都要上萬...08/17 16:59
13Fbeagle:不, 光是製 film 就上萬... 板子本身每片不到 200 ...08/17 18:54
14Fbeagle:雙面板,有防焊和絲網印刷,算是六層吧...08/17 18:55
15Fbeagle:所以我等上班日一定要打電話去晶功問一下,真的差很多 @.@08/17 18:58
18Fbeagle:是兩層板,但銅層,防焊層,絲網層都要film總共有六張圖08/18 03:57
[問題] Plug是啥?
[ Electronics ]2 留言, 推噓總分: +1
作者: shimizu - 發表於 2007/08/16 07:05(18年前)
2Fbeagle:plug 字面上就是插頭的意思... 當動詞就是 "插插頭"08/16 11:58
[問題] 關於PWM
[ Electronics ]11 留言, 推噓總分: +4
作者: a93620037 - 發表於 2007/08/15 14:17(18年前)
2Fbeagle:是啊, 直接做一個 30KHz 50% PWM 比較快, 又省事 :D08/15 14:28
3Fbeagle:Class D Audio Amplifier 是不是類似這樣的東西?08/15 14:30
6Fbeagle:所以你需要的是一個 programmable PWM generator08/15 16:28