hafrse
Full Member level 3
Hello,
I have a 47 Khz noise in the DC supplies of the analyzer ( R&S FSEM) , this noise was detected accidentally when I have replaced the LCD screen to a newer type where interference can be seen visible on low contrast images in this LCD panel, using an external DC supply , panel works perfekt!
The supply I am using is +15V , attached is the trace taken from the +15V at 10us. Any clues how to filter that noise out ? thanks
I have a 47 Khz noise in the DC supplies of the analyzer ( R&S FSEM) , this noise was detected accidentally when I have replaced the LCD screen to a newer type where interference can be seen visible on low contrast images in this LCD panel, using an external DC supply , panel works perfekt!
The supply I am using is +15V , attached is the trace taken from the +15V at 10us. Any clues how to filter that noise out ? thanks