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ferrite bead selection

Naveen G Bhat , 08-31-2018, 12:29 AM
Hello Forum,
I am using 9V/3A power adapter, this power divided in project like this 5V/1A and 3.3V/1A for my project,i want to have ferrite bead how to choose proper ferrite bead for my project.
Paul van Avesaath , 08-31-2018, 06:44 AM
dont worry too much about the ferrite beads.. just take one appropriate to your power demands.. so at least a 1A for the 5V and 3.3V... put some capacitors in there as well, power bricks dont have clean voltages.. lots of noise on most all of them...

just for my understanding you are dividing the 9V with resistors to the correct voltages? better to use a simple regulator in between.. that will manage the ,votlage for you... having large resistors to divide the voltage is not recommended...
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