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人为假定的电压或电流的方向。根据此参考方向计算电压和电流值,依据计算值的正负再结合参考方向,可确定电压和电流的实际方向。 - PowerPoint PPT Presentation


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i >0. 实际方向. 参考方向. i. 参考方向. 人为假定的电压或电流的方向。根据此参考方向计算电压和电流值,依据计算值的正负再结合参考方向,可确定电压和电流的实际方向。. u. u. +. +. i. i. 非关联参考方向. 关联参考方向. 关联参考方向. 当某一元件或电路端口所假定的电压和电流的参考方向,是参考电流从参考电压的正极流入,负极流出。则为关联参考方向,否则为非关联参考方向。.

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PowerPoint Slideshow about '人为假定的电压或电流的方向。根据此参考方向计算电压和电流值,依据计算值的正负再结合参考方向,可确定电压和电流的实际方向。' - aulii


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i >0

实际方向

参考方向

i

参考方向

人为假定的电压或电流的方向。根据此参考方向计算电压和电流值,依据计算值的正负再结合参考方向,可确定电压和电流的实际方向。


u

u

+

+

i

i

非关联参考方向

关联参考方向

关联参考方向

当某一元件或电路端口所假定的电压和电流的参考方向,是参考电流从参考电压的正极流入,负极流出。则为关联参考方向,否则为非关联参考方向。


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