[理工] 電子學比較器
關於
│
│ │
Vi──WWW──│-
│
V+───│+
│
右邊是顆OP 上面那條線是回授線 後面暫不討論 ..
- +
討論飽和時 一般都是討論 V > V 則Vo =-Vcc 反之相同討論
+
但在做題目時卻好像不是如此 是用 Vi > V
-
事實上Vi和V 是不同的東西 差個一顆電阻壓降
-
雖然習慣上這樣寫很久了 不過突然間自己也不知道為何要寫Vi非V
進而衍伸出 ..若Vi的地方串、並了一堆電阻 還是仍然寫Vi去討論嗎 ?
希望高手幫我點一下XD" ...感恩
我順便打上我的想法好了 我疑慮就是
解題流程 若OP後面卡了一堆diode
則 假設OP比較器討論v- v+ 看輸出為+Vcc or -Vcc 看看導通哪顆Diode
接下來導通了 .. 若有負回授則虛短路成立
進而知道Vi 跟 V+ or V- 的關係
這種流程觀念是正確還是錯誤的 ?
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◆ From: 125.224.74.214
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01/30 23:48, , 1F
01/30 23:48, 1F
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01/30 23:50, , 2F
01/30 23:50, 2F
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01/30 23:55, , 3F
01/30 23:55, 3F
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01/30 23:56, , 4F
01/30 23:56, 4F
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01/30 23:56, , 5F
01/30 23:56, 5F
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01/30 23:57, , 6F
01/30 23:57, 6F
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01/30 23:58, , 7F
01/30 23:58, 7F
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01/30 23:58, , 8F
01/30 23:58, 8F
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01/30 23:59, , 9F
01/30 23:59, 9F
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01/30 23:59, , 10F
01/30 23:59, 10F
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01/31 00:00, , 11F
01/31 00:00, 11F
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01/31 00:01, , 12F
01/31 00:01, 12F
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01/31 00:01, , 13F
01/31 00:01, 13F
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01/31 00:02, , 14F
01/31 00:02, 14F
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01/31 00:02, , 15F
01/31 00:02, 15F
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01/31 00:02, , 16F
01/31 00:02, 16F
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01/31 00:02, , 17F
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01/31 00:02, , 18F
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01/31 00:02, , 19F
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01/31 00:03, , 20F
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01/31 00:03, , 21F
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01/31 00:03, , 22F
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01/31 00:03, , 23F
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01/31 00:03, , 24F
01/31 00:03, 24F
※ 編輯: mp8113f 來自: 125.224.74.214 (01/31 00:05)
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01/31 00:04, , 25F
01/31 00:04, 25F
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01/31 00:04, , 26F
01/31 00:04, 26F
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01/31 00:04, , 27F
01/31 00:04, 27F
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01/31 00:04, , 28F
01/31 00:04, 28F
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01/31 00:07, , 29F
01/31 00:07, 29F
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01/31 00:07, , 30F
01/31 00:07, 30F
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01/31 00:07, , 31F
01/31 00:07, 31F
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01/31 00:08, , 32F
01/31 00:08, 32F
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01/31 00:08, , 33F
01/31 00:08, 33F
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01/31 00:08, , 34F
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01/31 00:09, , 35F
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01/31 00:09, , 36F
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01/31 00:10, , 37F
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01/31 00:10, , 38F
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還有 29 則推文
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01/31 13:09, , 68F
01/31 13:09, 68F
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01/31 13:11, , 69F
01/31 13:11, 69F
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01/31 13:13, , 70F
01/31 13:13, 70F
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01/31 13:14, , 71F
01/31 13:14, 71F
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01/31 13:16, , 72F
01/31 13:16, 72F
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01/31 13:16, , 73F
01/31 13:16, 73F
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01/31 13:18, , 74F
01/31 13:18, 74F
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01/31 13:21, , 75F
01/31 13:21, 75F
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01/31 13:22, , 76F
01/31 13:22, 76F
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01/31 13:31, , 77F
01/31 13:31, 77F
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01/31 13:31, , 78F
01/31 13:31, 78F
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01/31 13:34, , 79F
01/31 13:34, 79F
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01/31 13:44, , 80F
01/31 13:44, 80F
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01/31 13:45, , 81F
01/31 13:45, 81F
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01/31 13:50, , 82F
01/31 13:50, 82F
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01/31 13:52, , 83F
01/31 13:52, 83F
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01/31 13:52, , 84F
01/31 13:52, 84F
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01/31 13:53, , 85F
01/31 13:53, 85F
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01/31 14:00, , 86F
01/31 14:00, 86F
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01/31 14:20, , 87F
01/31 14:20, 87F
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01/31 14:21, , 88F
01/31 14:21, 88F
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01/31 14:23, , 89F
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01/31 14:27, , 90F
01/31 14:27, 90F
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01/31 14:28, , 91F
01/31 14:28, 91F
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01/31 14:28, , 92F
01/31 14:28, 92F
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01/31 14:32, , 93F
01/31 14:32, 93F
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01/31 14:32, , 94F
01/31 14:32, 94F
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01/31 14:32, , 95F
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01/31 14:32, , 96F
01/31 14:32, 96F
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01/31 14:33, , 97F
01/31 14:33, 97F
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01/31 14:58, , 98F
01/31 14:58, 98F
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01/31 15:00, , 99F
01/31 15:00, 99F
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01/31 15:01, , 100F
01/31 15:01, 100F
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01/31 15:11, , 101F
01/31 15:11, 101F
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01/31 15:12, , 102F
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01/31 15:13, , 103F
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01/31 15:29, , 104F
01/31 15:29, 104F
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01/31 19:50, , 105F
01/31 19:50, 105F
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02/01 08:26, , 106F
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09/11 14:50, , 107F
09/11 14:50, 107F