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目录
移至侧边栏
隐藏
开始
1
电路配置
2
公式
3
总结
切换目录
电子学/电子学公式/串联电路/串联 LC
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外观
移至侧边栏
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来自维基教科书,开放的书籍,开放的世界
<
电子学
|
电子学公式
|
串联电路
电路配置
[
编辑
|
编辑源代码
]
公式
[
编辑
|
编辑源代码
]
电路的总阻抗
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}}}
电路在平衡状态下的微分方程
L
d
i
d
t
+
1
C
∫
i
d
t
=
0
{\displaystyle L{\frac {di}{dt}}+{\frac {1}{C}}\int idt=0}
d
2
i
d
t
2
+
1
L
C
=
0
{\displaystyle {\frac {d^{2}i}{dt^{2}}}+{\frac {1}{LC}}=0}
s
2
+
1
L
C
=
0
{\displaystyle s^{2}+{\frac {1}{LC}}=0}
s
=
±
j
1
L
C
t
{\displaystyle s=\pm j{\sqrt {\frac {1}{LC}}}t}
s
=
±
j
ω
t
{\displaystyle s=\pm j\omega t}
电路的自然响应
i
=
A
S
i
n
ω
t
{\displaystyle i=ASin\omega t}
电路的谐振响应
Z
L
−
Z
C
=
0
{\displaystyle Z_{L}-Z_{C}=0}
.
Z
L
=
Z
C
{\displaystyle Z_{L}=Z_{C}}
.
ω
L
=
1
ω
C
{\displaystyle \omega L={\frac {1}{\omega C}}}
.
ω
=
1
L
C
{\displaystyle \omega ={\sqrt {\frac {1}{LC}}}}
V
L
+
V
C
=
0
{\displaystyle V_{L}+V_{C}=0}
.
V
C
=
−
V
L
{\displaystyle V_{C}=-V_{L}}
概述
[
edit
|
edit source
]
串联 LC 电路可以用以下特征来描述
二阶微分方程
d
2
i
d
t
2
+
1
T
=
0
{\displaystyle {\frac {d^{2}i}{dt^{2}}}+{\frac {1}{T}}=0}
T
=
L
C
{\displaystyle T=LC}
带有波函数的自然响应
i
=
A
S
i
n
ω
t
{\displaystyle i=ASin\omega t}
带有驻波函数的共振响应
i
=
A
S
i
n
ω
t
{\displaystyle i=ASin\omega t}
类别
:
书籍:电子学
华夏公益教科书