Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

Series-Parallel Combination

串并联组合

Most networks in AC circuits can be broken into blocks no more complicated than the one below. The complex impedance approach provides the tool necessary to reduce such a combination to an equivalent impedance. This kind of combination may be encountered in the development of an AC Thevenin equivalent for the analysis of an AC circuit.

Calculation
计算
The parallel part of the impedance can be put in the form
阻抗并联部分可以表示为
which can be rationalized by the operation :
这可以通过以下操作来解释：
 ,
and when terms are collected the results can be added to Z1 , giving the equivalent impedance.
大多数交流电路中的网络可以分解成不比下面这个复杂的块。复阻抗方法提供了将这种组合简化为等效阻抗的工具。这种组合可能在开发交流Thevenin等效电路以分析交流电路时遇到。当项被合并时，结果可以加到Z₁，得到等效阻抗。
 Index

AC circuit concepts
AC电路概念索引
 
HyperPhysics***** Electricity and Magnetism
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Impedance Calculation

阻抗计算

Impedances may be combined using the complex impedance method.

阻抗可以用复阻抗方法进行组合。
For
Z1 = + j
Z2 = + j
Z3 = + j

the impedance of the series-parallel combination:

串联并联组合的阻抗：
is
是
Zeq = + j= at phase.
Z_eq = +j = 在相位中。
中文译文中的待填/计算数值依次对应：1：zerp 2：zexp 3：zeap 4：zepp。实际数值以上方原输入框为准。

The units for all quantities are ohms. A negative phase angle implies that the impedance is capacitive, and a positive phase angle implies net inductive behavior.

所有量的单位都是欧姆。负的相位角表示阻抗是电容性的，正的相位角表示有净的电感性行为。
Expressions for parallel combination
并联组合表达式
Inductive reactance
感抗
Capacitive reactance
容抗
对于
中文译文中的待填/计算数值依次对应：1：z3r 2：z3x 3：z1r 4：z1x 5：z2r 6：z2x。实际数值以上方原输入框为准。
 Index

AC circuit concepts
AC电路概念索引
 
HyperPhysics***** Electricity and Magnetism
HyperPhysics ***** 电学和磁学
R Nave
 Go Back
返回