博文

目前显示的是 三月, 2021的博文

What are the advantages of a power supply with active PFC?

  Switching power supply is a kind of power supply that uses modern power electronics technology to control the time ratio of switching on and off to maintain a stable output voltage. Switching power supplies are generally composed of pulse width modulation (PWM) control ICs and MOSFETs. So what are the advantages of a   power supply with active PFC ? 1. For switching power supplies with the same rated power, active PFC switching power supply have a higher conversion efficiency than passive PFC products, because the former tends to have a higher level of workmanship, materials and structure, and the quality will be better, so active PFC switching power supply objectively saves electricity costs. 2. Active PFC power supplies are more adaptable to AC input voltage. Basically, the current wide-range power supplies adopt active PFC design, so that the active PFC power supply can still maintain a stable output under relatively large input voltage fluctuations. However, passive PFC power sup