peraka
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Hello!
I am designing a circuit to filter the noise from the power supply that I am going to use to power a Raspberry Pi, and some other circuits. I also want to use the same filter to filter out the noise from the supply pins from the Raspberry Pi.
I am currently studying electronic engineering, and i am still a noob at designing.
I have been taught at my uni that i can use a PI-filter after the power supply. The picture under shows the PI-filter that we used at the uni.
The power supply that i am using is a 5V power supply, with a 6A max, link under:
My problem is that I am designing this in easyEDA, and i want the PCB do be assembled when i recieve it. JLPCB does not have a 100mH inductor that can be assembled by them, at least from from what I can find. Do you have any suggestions what i should do?
I thought about finding the cut off freq, and find a random inductor, and then calculate which capacitor i should use. But i was taught that i should use a big inductor for filtering a power supply, for high freq suppresion.
Another idea that i thought about was using this:
BNX026H01L
to use as a filter. But this was so expensive.
I appreciate all the help I can get! I do not even know if the PI-filter is my best solution for the problem that i have
I am designing a circuit to filter the noise from the power supply that I am going to use to power a Raspberry Pi, and some other circuits. I also want to use the same filter to filter out the noise from the supply pins from the Raspberry Pi.
I am currently studying electronic engineering, and i am still a noob at designing.
I have been taught at my uni that i can use a PI-filter after the power supply. The picture under shows the PI-filter that we used at the uni.
The power supply that i am using is a 5V power supply, with a 6A max, link under:
IRM-30-5ST | MEAN WELL Strømforsyning med vekslemodus, industriell, 30W, 5V, 6A | Elfa Distrelec Norge
Kjøp Strømforsyning med vekslemodus, industriell, 30W, 5V, 6A. Kjøp våre nyeste Switch-mode strømforsyninger-tilbud. Levering neste dag tilgjengelig.
My problem is that I am designing this in easyEDA, and i want the PCB do be assembled when i recieve it. JLPCB does not have a 100mH inductor that can be assembled by them, at least from from what I can find. Do you have any suggestions what i should do?
I thought about finding the cut off freq, and find a random inductor, and then calculate which capacitor i should use. But i was taught that i should use a big inductor for filtering a power supply, for high freq suppresion.
Another idea that i thought about was using this:
BNX026H01L
to use as a filter. But this was so expensive.
I appreciate all the help I can get! I do not even know if the PI-filter is my best solution for the problem that i have