Digital control is becoming more and more popular in high-end power supply designs. This is especially true in the area of servers and telecommunications where ever-growing performance specifications ...

Average current-mode control, as shown in Figure 1, is common in continuous-conduction-mode (CCM) power factor correction (PFC). It has two loops: a voltage loop that works as an outer loop and a ...

Find a downloadable version of this story in pdf format at the end of the story. Due to the ever-increasing efficiency requirements, many power supply manufacturers are starting to look into ...

This paper presents a novel approach to control a boost PFC AC/DC converter without using any current sensors. Due to the particular structure of the boost PFC AC/DC converter, sensorless control of ...