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戴维宁定理等效电阻怎么求
更新时间: 2020-10-31 00:00:00  

戴维宁定理等效电阻的求法:戴维南定理:含独立电源的线性电阻单口网络N,就端口特性而言,可以等效为一个电压源和电阻串联的单口网络。电压源的电压等于单口网络在负载开路时的电压uoc;电阻R0是单口网络内全部独立电源为零值时所得单口网络N0的等效电阻。求法:将二端网络中所有电压源电流源置零,电压源等专效为一根导线,电流源等效为断路,然后再在二端网络外接一个自己设置的独立电压源,电压大小U自定,方向自定,然后等效R=V/I,I为流过该自设的独立电压源的电流。

关键词: 定理 等效 电阻 怎么

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