![]() Then the boost converter steps the voltage up to a higher value. This topology uses a boost converter in addition to a rectifying diode bridge that converts the AC voltage to DC voltage ( Figure 1). Interleaved boost PFC is the most common topology for power factor correction. This article compares these three topologies when used in different applications. Furthermore, advanced totem-pole controllers have simplified the control of complex designs such as interleaved totem-pole PFC. ![]() The most commonly used topology for power factor correction is boost PFC, but the advent of wide bandgap (WBG) semiconductors-such as gallium nitride (GaN) and silicon carbide (SiC)-has enabled the implementation of bridgeless topologies like totem-pole PFC. So, power supply designs require advanced power factor correction (PFC) circuitry to meet strict power factor (PF) standards to mitigate these issues. ![]() Three topologies are commonly used in power supply designs: Interleaved boost PFC, bridgeless totem-pole PFC and interleaved totem-pole PFC.Īs more electrically-powered devices are connected to the grid, the increased distortion to the electric grid can create problems in the electrical distribution network. ![]()
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