电流分配定则

Figura 2: Divisor de corriente hecho con impedancias.

Figure 3: A current amplifier (gray box) driven by a Norton source (iS, RS) and with a resistor load RL. Current divider in blue box at input (RS,Rin) reduces the current gain, as does the current divider in green box at the output (Rout,RL)

电流分配定则（英语：Current divider rule），是指在并联电路中，各负载分到的电流的关系。

对于电压源电路

电源电压为各负载的电压降

V_e = V_1 = V_2 = \cdots = V_n

各阻抗流经的电流

I_n = \frac{V_n}{Z_n}

总电流

I_\mathrm{total} =\sum_{k=1}^n {I}_k = I_1 + I_2 + \cdots + I_n

总阻抗

Z_\mathrm{total} = \frac{V_e}{I_\mathrm{total}}

对于电流源电路

总电流

I_\mathrm{total} =\sum_{k=1}^n {I}_k = I_1 + I_2 + \cdots + I_n

总阻抗

\frac{1}{Z_\mathrm{total}} = \frac{1}{Z_1} + \frac{1}{Z_2} + \cdots + \frac{1}{Z_n}

各分路电流

I_\mathrm{n} = \frac{Z_\mathrm{total}}{Z_n} \cdot I_\mathrm{total}

在只有2个电阻的并联电路里，相关计算公式可以简化为：

总电阻

R_\mathrm{total} = \frac{R_1 \cdot R_2}{R_1+R_2}

各分路电流

I_1 = \frac{R_2}{R_1+R_2} \cdot I_\mathrm{total}

I_2 = \frac{R_1}{R_1+R_2} \cdot I_\mathrm{total}

单词	Current divider
释义	Current divider 中文百科电流分配定则电流分配定则（英语：Current divider rule），是指在并联电路中，各负载分到的电流的关系。对于电压源电路电源电压为各负载的电压降 $V_e = V_1 = V_2 = \cdots = V_n$ 各阻抗流经的电流 $I_n = \frac{V_n}{Z_n}$ 总电流 $I_\mathrm{total} =\sum_{k=1}^n {I}_k = I_1 + I_2 + \cdots + I_n$ 总阻抗 $Z_\mathrm{total} = \frac{V_e}{I_\mathrm{total}}$ 对于电流源电路总电流 $I_\mathrm{total} =\sum_{k=1}^n {I}_k = I_1 + I_2 + \cdots + I_n$ 总阻抗 $\frac{1}{Z_\mathrm{total}} = \frac{1}{Z_1} + \frac{1}{Z_2} + \cdots + \frac{1}{Z_n}$ 各分路电流 $I_\mathrm{n} = \frac{Z_\mathrm{total}}{Z_n} \cdot I_\mathrm{total}$ 在只有2个电阻的并联电路里，相关计算公式可以简化为：总电阻 $R_\mathrm{total} = \frac{R_1 \cdot R_2}{R_1+R_2}$ 各分路电流 $I_1 = \frac{R_2}{R_1+R_2} \cdot I_\mathrm{total}$ $I_2 = \frac{R_1}{R_1+R_2} \cdot I_\mathrm{total}$ 英语百科 Current divider 电流分配定则 In electronics, a current divider is a simple linear circuit that produces an output current (I_X) that is a fraction of its input current (I_T). Current division refers to the splitting of current between the branches of the divider. The currents in the various branches of such a circuit will always divide in such a way as to minimize the total energy expended.
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Current divider

电流分配定则

Current divider 电流分配定则