qweets
Junior Member level 2
hello there.
I have a problem with my design.
I have an audio design placed together with an led system which is controlled by a micro controller (USB).
They both share the same Power supply which is causing problems I beleive.
The audio system sounds great by itself, that is until I connect up the micro controller USB and light up a few leds. Then there is a terrible interference noise and pulse sound.
I wonder do I need two separate ground planes and to somehow use diodes to separate the audio system power from the micro controller power?
Here is a schematic to help explain the system.
Your help is greatly appreciated. : )
I have a problem with my design.
I have an audio design placed together with an led system which is controlled by a micro controller (USB).
They both share the same Power supply which is causing problems I beleive.
The audio system sounds great by itself, that is until I connect up the micro controller USB and light up a few leds. Then there is a terrible interference noise and pulse sound.
I wonder do I need two separate ground planes and to somehow use diodes to separate the audio system power from the micro controller power?
Here is a schematic to help explain the system.
Your help is greatly appreciated. : )
Last edited: