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The Three-Level Flying-Capacitor Bridgeless Totem-Pole PFC (3L-FC-BTP-PFC) has become an attractive solution for the latest generation of power supplies, where both high efficiency and compliance with…
Author: Rytis Beinarys and Garry Tomlins
Publication Date: November 2025
Multilevel totem-pole PFC offers the designer market appealing advantages over 2-level designs including a significantly smaller inductor, much lower dv/dt’s and reduced switching losses. The inherent…
Author: Dr. Trong Tue Vu and Rytis Beinarys
Publication Date: March 2022
In offline switched mode AC/DC power supplies, active power factor correction (PFC) is generally required for input power exceeding 75W, as mandated by IEC 61000-3-2. This function…
Author: Dr. Trong Tue Vu and Rytis Beinarys
Publication Date: April 2021
Achieving 99% efficiency for PFC front-end stages has been a domain of wide band gap (WBG) devices due to reverse recovery challenges associated with high-voltage (>500V) silicon…
Author: Garry Tomlins and Dr. Trong Tue Vu
Publication Date: July 2018