traces next to switching inductors

Thread Starter

pager48

Joined Nov 25, 2018
161
Would the traces in either of the pictures be picking up lots of noise?

The inductor is switching at 4amps 1.2Mhz for a boost converter making 28v on a 2 layer board the second image has traces right under inductor its a 2 layer board.

img.png

img-layer.png
 
Last edited:

SLK001

Joined Nov 29, 2011
1,549
Once again, a poster asks a question while only providing less than the minimum required information to the forum. This question CANNOT be adequately answered because the OP hasn't provided the needed details of the circuit.

To the OP:
Why haven't you posted the FULL SCHEMATIC? And the FULL LAYOUT?
What KIND of inductor are you using?
Why does the second picture show the trace crossing the high current trace THREE TIMES? And then RUN PARALLEL to it?
What signals do both traces carry?

So, let me answer your question: YES! and NO! Both answers will CORRECTLY answer your question, given the range of possible scenarios.
 

DickCappels

Joined Aug 21, 2008
10,170
The greatest sensitivity to interference is with high impedance signals in general and especially analog signals.

If you can route around that would always be safer.
 
Top