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。

Voltage Divider

电压分压器

The two resistor voltage divider is used often to supply a voltage different from that of an available battery or power supply. In application the output voltage depends upon the resistance of the load it drives.

电阻分压器常用于提供一个不同于可用电池或电源电压的电压。在应用中，输出电压取决于它驱动的负载电阻。

where

is the parallel resistance of R2 and the load resistor RL.

For
对于
R1 = Ω, R2 =Ω, and V1 =
R₁ = Ω，R₂ = Ω，且V₁ =
中文译文中的待填/计算数值依次对应：1：r1 2：r2 3：v1。实际数值以上方原输入框为准。
 V,
the open circuit output voltage would be Vout = V
开路输出电压将是 V_out = V
中文译文中的待填/计算数值依次对应：1：v2。实际数值以上方原输入框为准。
If the voltage divider is suppying a load
如果电压分压器在供电负载
RL = Ω,
then the output circuit voltage is
则输出电路电压为
Vout = V
V out = V（专名或术语）
中文译文中的待填/计算数值依次对应：1：v3。实际数值以上方原输入框为准。

For this circuit, the total power supplied by the power supply is
Ptotal = watts

对于这个电路，电源提供的总功率为 P_total = 瓦特
中文译文中的待填/计算数值依次对应：1：pt。实际数值以上方原输入框为准。

and the power delivered to the load resistor RL is
Pout = watts.

并为负载电阻 R_L 交付的功率为 P_out = 瓦特。
中文译文中的待填/计算数值依次对应：1：po。实际数值以上方原输入框为准。

The load then receives % of the total power.

负载则接收总功率的%。
中文译文中的待填/计算数值依次对应：1：peff。实际数值以上方原输入框为准。

The voltage divider is a very important basic circuit, and exploring the calculation above with various values can give you insight into a large number of practical circuit applications. One practical consideration is that a larger value of R2 compared to R1 will give you a larger output voltage. But if your load resistance RL is smaller than R2, you will diminish the output voltage and require a larger current and total power from the power supply. You would find upon exploration that for a given set of values for the voltage divider (R1 and R2), you will get more power to the load if you decrease the load resistor RL but is comes at the expense of higher current and power from the power supply.

电压分压器是一个非常重要的基本电路，通过使用各种值进行上述计算，可以为您提供大量实际电路应用的洞察。一个实际考虑是，如果R2的值比R1大，您将得到更大的输出电压。但是，如果您的负载电阻R_L比R2小，您会降低输出电压，并需要从电源获取更大的电流和总功率。通过探索您会发现，对于给定的电压分压器（R1和R2）的值，如果减小负载电阻R_L，可以得到更多的负载功率，但会以更高的电流和电源功率为代价。

Note: To avoid dealing with so many short circuits, divider resistors with value zero will default to 1 when the voltage is changed and the load will default to 1000. They can be changed back to a zero value if you wish to explore the effects of short circuits. Ohms are indicated as the resistance unit, but kilohms are more common and of course the calculation is the same.

注意：为了避免处理那么多短路，当电压变化时，分压电阻的值为零将默认为1，负载将默认为1000。如果您想探索短路的影响，可以将其改回零值。欧姆是电阻的单位，但千欧更常见，当然计算方式是一样的。
DC circuit examples
直流电路示例
AC voltage divider
交流电压分压器
其中R2的并联电阻和负载电阻RL是多少。
中文译文中的待填/计算数值依次对应：1：r3。实际数值以上方原输入框为准。
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DC Circuits
索引：直流电路
 
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