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How to calculate the relationship between PCB line width and current
1.Calculation method First calculate the cross-sectional area of the track. The copper foil thickness of most PCBs is 35um (if you are not sure, you can ask the PCB manufacturer, 1 ounce is 35um, but in fact it is less than 35um). Multiply it by the line width to get the cross-sectional area. Pay attention…