推 beagle:不是, I-V 圖上只出現在第一和第三象限的是被動元件 10/11 23:52
→ Lary:簡單的說 主動元件會有current gain或voltage gain 被動元件 10/11 23:53
→ Lary:只有loss 10/11 23:53
推 ShineOnYou:主動要電 被動不用電 10/12 02:23
→ Mauder:主動元件可利用power supply產生能量 被動不行 10/12 10:10
推 ukyo1024:請問二極體算主動還是被動? 10/12 12:21
推 mawa1007:二極體屬被動 10/12 13:38
→ ukyo1024:有些網站說二極體是主動，賣二極體的也說是主動，何故? 10/12 13:59
推 rogerable:因為他們以為只有RLC才算被動 10/12 14:20
推 mepass:可以另外控制電阻的才是主動 二極體才兩隻腳要怎麼主動 10/12 14:46
推 sean456:我個人認為二極體算是主動元件 10/12 15:08
推 beagle:我在 1F 說的是我那本課本的定義, 照此定義 Diode 算被動, 10/12 15:11
→ beagle:問題是照這個定義的話 Inductor 要怎麼算? 偶而變主動? 10/12 15:12
→ beagle:跟你們說喔, 我那本電子學課本, 從頭到尾沒講到 Inductor 10/12 15:13
→ beagle:不愧是資工系專用閹割版... 10/12 15:13
推 sean456:Passive components are those that do not have gain 10/12 15:14
→ sean456:or directionality.In the Electric industry they are 10/12 15:14
→ sean456:called Electrical elements or electrical components 10/12 15:14
→ sean456:Active components are those that have gain or 10/12 15:15
→ sean456:directionality, in contrast to passive components 10/12 15:15
→ sean456:which have neither. They include Semiconductors 10/12 15:15
→ sean456:(Solid State Devices) and Thermionic Valves 10/12 15:15
→ sean456:(Vacuum Tubes) 10/12 15:16