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how does vibration affect circuit boards?

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Beffo

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An bldc-motor (80 W) with electronic controller-board fitted in a car, on or beside the engine.

How would the design be affected by vibration? Is vibration a common problem for theese types of applications?
 

VVV

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Basically all the heavy components on that board have to be secured to the PCB, otherwise they will just fly off the board. That is why you sometimes see fully potted circuits.
 

dfullmer

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Hi,
Even if the components stay on the board it can be made to flex and break traces. If its a large board try and support it in the center as well as the edges.

good luck
dfullmer
 

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