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內容
移至側邊欄
隱藏
開始
1
串聯 RL
2
電路的微分方程
3
電路阻抗
4
總結
切換目錄
電子學手冊/元件/RL 電路
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外觀
移至側邊欄
隱藏
來自華夏公益教科書,開放書籍,開放世界
<
電子學手冊
|
元件
串聯 RL
[
編輯
|
編輯原始碼
]
串聯連線的 R 和 L 電路
電路的微分方程
[
編輯
|
編輯原始碼
]
在平衡狀態下,總電壓為零
V
L
+
V
R
=
0
{\displaystyle V_{L}+V_{R}=0}
L
d
I
d
t
+
I
R
=
0
{\displaystyle L{\frac {dI}{dt}}+IR=0}
d
I
d
t
=
−
I
R
L
{\displaystyle {\frac {dI}{dt}}=-I{\frac {R}{L}}}
∫
1
I
d
I
=
−
∫
L
R
d
t
{\displaystyle \int {\frac {1}{I}}dI=-\int {\frac {L}{R}}dt}
ln I =
(
−
L
R
t
+
c
)
{\displaystyle (-{\frac {L}{R}}t+c)}
I =
A
e
−
t
T
{\displaystyle Ae^{-}{\frac {t}{T}}}
其中
T
=
L
R
{\displaystyle T={\frac {L}{R}}}
A = e
c
電路的自然響應是指數響應
電路阻抗
[
編輯
|
編輯原始碼
]
Z
=
Z
R
+
Z
L
{\displaystyle Z=Z_{R}+Z_{L}}
Z
=
R
+
j
ω
L
{\displaystyle Z=R+j\omega L}
Z
=
1
R
(
1
+
j
ω
T
)
{\displaystyle Z={\frac {1}{R}}(1+j\omega T)}
T
=
L
R
{\displaystyle T={\frac {L}{R}}}
總結
[
編輯
|
編輯原始碼
]
電路
串聯 RC
配置
阻抗
Z
=
R
+
j
ω
L
{\displaystyle Z=R+j\omega L}
Z
=
1
R
(
1
+
j
ω
T
)
{\displaystyle Z={\frac {1}{R}}(1+j\omega T)}
T
T
=
L
R
{\displaystyle T={\frac {L}{R}}}
微分方程
L
d
I
d
t
+
I
R
=
0
{\displaystyle L{\frac {dI}{dt}}+IR=0}
微分方程的一般形式
d
I
d
t
+
1
T
=
0
{\displaystyle {\frac {dI}{dt}}+{\frac {1}{T}}=0}
電路的自然響應
I
(
t
)
=
A
e
−
(
t
T
)
{\displaystyle I(t)=Ae^{-}({\frac {t}{T}})}
A
A
=
V
R
{\displaystyle A={\frac {V}{R}}}
類別
:
書籍:電子學手冊
華夏公益教科書