作者查詢 / Mopack22926
作者 Mopack22926 在 PTT [ Electronics ] 看板的留言(推文), 共24則
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12F推:VG=-3.74V06/28 18:21
13F推:然後R1+R2那邊是串聯 電流為10/100K=0.1mA06/28 18:24
14F→:R2= VG -(-5) / 0.1m =12.6K 歐姆06/28 18:25
15F推:R1=87.4K 這題我用匯流排定理驗證VG06/28 18:29
16F→:VG=5*R2-5*R1 / R1+R2 = -3.74V 驗證成功06/28 18:30
17F推:你寫的分壓公式通常都是接地..R1*0..但這題非接地..06/28 18:33
18F→:所以還要 分子還要 -5*R2 才是真正的分壓06/28 18:34
19F→:串聯原因 因為G那邊沒電流....所以R1跟R2可以看成串聯06/28 18:35
20F推:沒電流 代表VG=G上的電壓06/28 18:43
3F→:謝謝兩位!06/27 12:30
1F推:答案是從網路上補習班題庫抓的.06/23 15:44
2F推:謝謝..06/23 15:46
12F→:謝謝06/23 15:46
1F推:謝謝你!06/20 14:41
1F推:謝謝解答06/19 00:56
2F推:請問一下40k那點接地所以那點電壓=0.7 這樣觀念對吧06/19 01:12
3F推:請問vcc' 5-(5-(-10)) 0.1這個怎麼來得..06/19 09:06
5F推:懂了..謝謝各位辛苦陪我解這題06/19 15:05
1F推:謝謝解答06/19 01:39
2F→:謝謝提醒!以更正06/18 21:39
1F推:謝謝!06/13 11:44
4F→:謝謝!06/13 11:44