Needed an inexpensive 32V power supply for audio. Chinese ones are almost all with some problems. Either the modes are poorly tuned and the noise is too high, or the burst mode works up to 20-30W. And the quality of components is also desirable.
Anyway, I decided to make my own power supply. Burst is not used. Used L6699 driver, it has improved protection circuitry and dynamic dead time, which avoids some interference problems. In addition, unlike L6599 - current protection with restart.
Added synchronous rectifier. As a result, for audio applications everything works without heatsinks. And protection indication and an external signal triggered quick unit shutdown input with trigger effect. A DC voltage protection circuit for the amplifier output can be connected here
Anyway, I decided to make my own power supply. Burst is not used. Used L6699 driver, it has improved protection circuitry and dynamic dead time, which avoids some interference problems. In addition, unlike L6599 - current protection with restart.
Added synchronous rectifier. As a result, for audio applications everything works without heatsinks. And protection indication and an external signal triggered quick unit shutdown input with trigger effect. A DC voltage protection circuit for the amplifier output can be connected here
