作者查詢 / shengyeh
作者 shengyeh 在 PTT [ Electronics ] 看板的留言(推文), 共137則
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1F推: 理論可以 實際不行05/29 14:48
2F推: 電容driving 電壓晶片要單獨針對某個點輸入特殊電壓05/29 14:50
3F推: 你可以想像 觸碰晶片讀出一個 array 的數值05/29 14:51
4F→: 碰其中一點 數值會改變05/29 14:52
5F推: 讀出值只跟driving 電壓和電容有關05/29 14:53
6F→: 一般操作 是driving 一種電壓 然後去找數值變化的點05/29 14:54
7F推: 你現在改變的電壓還是global的效用05/29 14:56
8F推: 沒辦法針對某一點 就算你可以改電壓05/29 14:57
9F推: 電容版的結構是driving 一邊 sensing 一邊05/29 14:58
10F→: 你頂多可以靠電壓變某一條row的值05/29 14:59
11F→: 除非你連電容版都可以改05/29 15:00
12F推: http://www.ti.com/lit/an/snoa927/snoa927.pdf05/30 16:42
13F→: 還有分自容跟互容式 如果是手機的找互容式的看05/30 16:44
14F推: "投射電容式觸控面板原理介紹"05/30 16:46