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[問題] 電路學

[ Electronics ]4 留言, 推噓總分: 0

作者: steve1012 - 發表於 2011/08/19 22:06(14年前)

2^F→steve1012:啊shit==08/19 22:16

[問題] 電子學一題

[ Electronics ]36 留言, 推噓總分: 0

作者: steve1012 - 發表於 2011/08/07 13:06(14年前)

3^F→steve1012:那要怎麼算出p1 用它給的式子嗎08/07 15:06

10^F→steve1012:所以我要證明一個積分等於一個無窮級數的相加08/07 16:38

11^F→steve1012:我好奇的是要是我要算p1的話那我是要用那個積分的式子08/07 16:39

12^F→steve1012:嗎因為敝人還沒有學到電路學不甚清楚煩請大家指教08/07 16:40

13^F→steve1012:∫ v^2/R dt = ∫ (sin wt)^2/R dt =p1 是這樣嗎08/07 16:41

14^F→steve1012:然後P=p1+p3.... = ∫ (sinwt +1/3 sin3wt ...)^2/R dt08/07 16:42

15^F→steve1012:是這樣嗎08/07 16:42

25^F→steve1012:好像有點懂了那再請問一下所以P1要帶入average power08/07 18:37

26^F→steve1012:的話是要寫成∫(4V/pi)^2 (sin w_0t)^2/R dt 這樣子嗎08/07 18:38

27^F→steve1012:然後p3就要再加入一項 1/3 sin3W_0t嗎？08/07 18:38

29^F→steve1012:那我想在問一下 P3的積分項裡面是(sinwt +1/3 sin3wt)08/07 20:37

30^F→steve1012:嗎？08/07 20:37

33^F→steve1012:所以就是多個波的疊加能量是各個波的相加08/07 21:54

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