For high input voltage (>; 264 V ac) ac/dc applications, a buck power factor correction (PFC)
converter is a good choice because of its low output voltage, high efficiency, lifetime …

Due to the input current dead zones, the buck power factor correction converter has to set a
fixed output voltage for a tradeoff between the total harmonic distortion (THD) and efficiency …

An improved buck power factor correction (PFC) converter topology is proposed in this
paper. By adding an auxiliary switch and two diodes, the dead zones in ac input current of …

The bridgeless buck power factor correction (PFC) converters feature the merits of low
output voltage and high efficiency while their inherent dead angles in the input current will …

The traditional critical conduction mode (CRM) flyback PFC converter with constant on-time
control strategy usually suffers low power factor (PF) and high total harmonic distortion …

An interleaved boundary conduction mode power-factor-correction buck converter that
maintains high efficiency across entire load and line range is proposed. The adaptive master …

Conventional buck power factor correction (PFC) converter has the disadvantage of high
harmonic currents, which limits its applications. In this article, a buck type single-switch …

Buck power factor correction (PFC) has attracted a lot of research interests for its low output
voltage and high efficiency at low input condition. However, the traditional Buck PFC …

This paper presents an ac-dc LED driver that consists of two-parallel inverted buck
converters. To buffer the twice-line-frequency energy, one inverted buck converter (also …

This paper presents a three-level quasi-two-stage single-phase power factor correction
(PFC) converter that has flexible output voltage and improved conversion efficiency. The …