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如何解析Circuitjs分支电路的功能

引言

CircuitJS（原Falstad Circuit Simulator）是一款基于浏览器的交互式电路仿真工具，其直观的可视化界面和实时仿真特性深受电子爱好者喜爱。分支电路（Branch Circuit）作为复杂电路系统中的基础单元，其功能解析直接影响整体电路设计的可靠性。本文将系统介绍利用CircuitJS解析分支电路功能的完整方法，涵盖基本原理、操作步骤和典型应用场景。

一、分支电路的基本概念

1.1 分支电路的定义

分支电路指从主电源分出的独立电流路径，具有以下特征： - 至少包含一个负载元件 - 与其他路径并联连接 - 具备独立的电流控制机制

1.2 常见分支电路类型

二、CircuitJS解析分支电路的步骤

2.1 搭建基础电路框架

1. 创建主电源：通过菜单->电路->添加电源插入电压源
2. 添加分支节点：使用右键拖动创建连接点
3. 快捷键备忘：
   • R：添加电阻
   • C：添加电容
   • L：添加电感
   • G：接地

2.2 配置元件参数

双击元件可调出参数面板，重点设置： - 电阻值（Ω） - 电容容值（μF） - 电感感值（mH） - 电源电压（V）

2.3 实时仿真分析

启动仿真后观察： - 电流流向（红色箭头指示） - 电压分布（彩色梯度显示） - 示波器波形（需额外添加）

![分支电路示例](https://www.falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWcMBMcUHYMGZIA4UA2ATmIxAUgoqoQFMBaMMAKDAQkQ2gTj0O4QAN3gQwQkGBCQwUcKjBQwYkGJAwQkKJChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFChQoUKFC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