What are the methods to improve the efficiency of switching power supplies?

1. By adding a low-power fast diode to the Schottky at the secondary output of the switching power supply instead of RC absorption, the efficiency can generally be improved by 1-2 points.
2. When volume and area permit, PQ or RM type transformers should be selected as much as possible. If safety regulations permit, the efficiency of transformers without retaining walls can be improved.
3. Input and output electrolytic capacity values.
4. The main current circuit PCB should be as short as possible.
5. Optimize transformer parameter design to reduce eddy current losses caused by ringing.
6. Reasonable selection of switching devices.
7. Input EMI optimization design.
8. Choose a suitable and efficient expansion structure.
9. Choose a good electrolytic capacitor.
10. Power consumption design for the startup section.
11. Optimization of chip assisted power supply.
12. Adopting energy-saving mode: In light load or standby mode, adopting energy-saving mode or dynamically adjusting working parameters to reduce system power consumption.