Impact of AC effects on current density analysis of pcb for 50-60Hz frequency

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ursonor99

Joined Jan 10, 2022
3
Hello ,
I was looking into current density analysis of a PCB that handles distribution of AC power . from ansys and cadence sites , i realized by current density they refer to DC IR drop that is a pure ohmic analysis that doesn't take into consideration the AC effects . And in order to take this into consideration , we need to go to AC impedance analysis and obtain EM losses . But I observed this kind of analysis was done for high frequency AC circuits for decoupling cap suggestions etc .
So i was curious to know how much the current density behavior will deviate from DC for a low frequency like 50-60Hz ? as for such frequencies the skin depths are much greater than trace width and thickness
 

Ian0

Joined Aug 7, 2020
5,182
So i was curious to know how much the current density behavior will deviate from DC for a low frequency like 50-60Hz ? as for such frequencies the skin depths are much greater than trace width and thickness
Skin depth at 50Hz is 9.2mm, so it won't be noticeably different from DC
 
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