Hello, expert.
I have a question about high frequency audible noise on MP8017.
Audible noise occurs regardless of output LOAD.
Is there a solution?
MP8017
Frequency: 300KHZ
Output voltage/current: 5V/2.4A
Transformer: EP10, 85uH
Hi,
There are some reasons for audible noise. Can you show me the waveforms of the SW node? Were all the other parameters of the circuit normal at the time you heard the noise? Is there any waveform instability?
Best,
Fox
Hello.
SW waveform is fine.
Occurrence waveform is not observed.
Is there a problem with the transformer L value or turns ratio?
Type : EP10 SMD
Turns : 32T / 7T
Inductance : 85uH
Hi,
Do you know exactly where the noise is generated?
Best,
Fox