电路分析法 | Circuit Analysis Methods
Kirchhoff’s Current Laws (KCL)
Definition:
电路中的节点即为电路中两个或多个元件连接处。
在电路中的任意节点，流入节点的电流总和等于流出的电流总和。
A node is a point in a circuit where two or more components meet.
At any node in an electrical circuit, the sum of currents flowing into a node is equal to the sum of currents flowing out of that node
Kirchhoff’s Voltage Law (KVL)
Definition:
回路即为电路中的闭合路线，从同一个节点开始和结束。
在任一时刻，电路回路中电压下降的和（或者等价地，电压上升的代数和）等于零。
或者说，在回路中每个组件上降的电压和每个组件上升的电压和相等。
A loop is a closed path in a circuit, starting and ending at the same point.
At any instant the algebraic sum of the voltage drops (or , equivalently, the algebraic sum of voltage rises) around any loop in a circuit is equal to zero.
特勒根定理 | Tellegen's theorem
电路中产生的功率与吸收的功率之和为零。
In any circuit, the sum of the powers associated with each component is equal to zero. In other words: the total power delivered to the circuit is equal to the total power adsorbed from the circuit.
例：
