USB Supply Noise

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#1 21663142 24 Jul 2012 05:03

SHEKHAR KAPOOR SHEKHAR KAPOOR

Anonymous

Post #1
21663142 24 Jul 2012 05:03

What is the range of frequencies in USB power supply noise? And what is the circuit to remove them?
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#2 21663143 24 Jul 2012 20:10

Floy Viola Floy Viola

Anonymous

Post #2
21663143 24 Jul 2012 20:10

what is the range of frequencies in usb power supply noise? - it can be from 20Hz to as high as 300Khz

circuit to remove them? - an RC filter at the input of the device could probably solve it, using R = 10ohm C = 0.1uf//10uf. but it's not a sure fire solution.

what device are you trying to power thru a usb and how much current will your device draw?
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