如何使用 UliEngineering 在 Python 中根据比例计算分压器的电阻
你可以使用 UliEngineering Python 库,在已知下电阻值和分压比的情况下轻松计算分压器的上电阻:
top_resistor_by_ratio.py
from UliEngineering.Electronics.VoltageDivider import *
from UliEngineering.EngineerIO import *
# 计算下电阻为 10k、分压比为 1:2 的分压器上电阻
rtop = top_resistor_by_ratio("10k", 0.5)
print(f"Top resistor (ratio 0.5, bottom 10k): {format_value(rtop, 'Ω')}")
# 计算下电阻为 1k、分压比为 1:10 的分压器上电阻
rtop = top_resistor_by_ratio("1k", 0.1)
print(f"Top resistor (ratio 0.1, bottom 1k): {format_value(rtop, 'Ω')}")示例输出
top_resistor_by_ratio_output.txt
Top resistor (ratio 0.5, bottom 10k): 10.0 kΩ
Top resistor (ratio 0.1, bottom 1k): 9.00 kΩ上电阻通过以下公式计算:$R_{top} = R_{bottom} \times (\frac{1}{ratio} - 1)$,其中比例为 $V_{out}/V_{in}$。
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