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目录
移动到侧边栏
隐藏
开始
1
RC 串联
2
电路的微分方程
3
电路阻抗
4
总结
切换目录
电子学手册/元件/RC 网络
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来自维基教科书,开放的书籍,面向开放的世界
<
电子学手册
|
元件
RC 串联
[
编辑
|
编辑源代码
]
R 和 C 串联连接的电路
电路的微分方程
[
编辑
|
编辑源代码
]
在平衡状态下,总电压为零
V
C
+
V
R
=
0
{\displaystyle V_{C}+V_{R}=0}
C
d
V
d
t
+
V
R
=
0
{\displaystyle C{\frac {dV}{dt}}+{\frac {V}{R}}=0}
d
V
d
t
=
−
1
R
C
V
{\displaystyle {\frac {dV}{dt}}=-{\frac {1}{RC}}V}
1
V
d
V
=
−
1
R
C
d
t
{\displaystyle {\frac {1}{V}}dV=-{\frac {1}{RC}}dt}
∫
1
V
d
V
=
−
∫
1
R
C
d
t
{\displaystyle \int {\frac {1}{V}}dV=-\int {\frac {1}{RC}}dt}
ln V =
−
1
R
C
+
C
{\displaystyle -{\frac {1}{RC}}+C}
V
=
e
−
(
1
R
C
)
t
+
C
{\displaystyle V=e^{-}({\frac {1}{RC}})t+C}
V
=
A
e
−
(
t
T
)
{\displaystyle V=Ae^{-}({\frac {t}{T}})}
其中
T = RC
A = e
c
电路阻抗
[
编辑
|
编辑源代码
]
Z
=
Z
R
+
Z
C
{\displaystyle Z=Z_{R}+Z_{C}}
Z
=
R
+
1
j
ω
C
{\displaystyle Z=R+{\frac {1}{j\omega C}}}
Z
=
1
j
ω
C
(
1
+
j
ω
T
)
{\displaystyle Z={\frac {1}{j\omega C}}(1+j\omega T)}
T = RC
总结
[
编辑
|
编辑源代码
]
电路
串联 RC
配置
阻抗
Z
=
R
+
j
ω
C
{\displaystyle Z=R+j\omega C}
Z
=
1
j
ω
C
(
1
+
j
ω
T
)
{\displaystyle Z={\frac {1}{j\omega C}}(1+j\omega T)}
T
T
=
R
C
{\displaystyle T=RC}
微分方程
C
d
V
d
t
+
V
R
=
0
{\displaystyle C{\frac {dV}{dt}}+{\frac {V}{R}}=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}
自然响应
V
(
t
)
=
A
e
(
−
t
T
)
{\displaystyle V(t)=Ae^{(}-{\frac {t}{T}})}
A
A
=
I
R
{\displaystyle A=IR}
类别
:
图书:电子学手册
华夏公益教科书