Main features of wholesale switching power supplies:
1. Small size and light weight: Since there is no power frequency transformer, the volume and weight are only 20-30% of the linear power supply.
2. Low power consumption and high efficiency: The power transistor works in the on-off state, so the power consumption on the transistor is small and the conversion efficiency is high, generally 60-70%, while the linear power supply is only 30-40%.

Working conditions of wholesale switching power supplies:
1. Switch: Power electronic devices work in a switch state instead of a linear state;
2. High frequency: power electronic devices work at high frequency instead of low frequency close to the power frequency;
3. DC: The output of wholesale switching power supplies is DC instead of AC.
Application of wholesale switching power supplies:
Wholesale switching power supplies products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LEDs Lighting, communication equipment, audio-visual products, security monitoring, LED light strips, computer cases, digital products and instruments and other fields.