I designed a 200W power supply using the UCC28780 for audio amplifiers.
I suffer from audible noise from transformer.
This is varnished transformer.
Since it is used for audio, I want to reduce the noise generated from the transformer as much as possible.
I found the following attachment, is it valid?
Are there any side effects?
BUR hysteresis circuitry to Eliminate ABM-AAM transition (Audible Noise) .pdf