WEBINAR: Enabling 99.3% efficiency in 3.6kW Totem pole PFC using new 750V Gen 4 SiC FETs

April 20, 2021

Listen to this webinar to discover how the breakthrough performance of UnitedSiC 750V Gen 4 SiC FETs (https://info.unitedsic.com/gen4) enables a simple design of a highly efficient Totem-pole PFC. Efficiency measurements on the developed 3.6kW unit will demonstrate a 99.3% efficiency rating. Insight into the losses is provided by the UnitedSiC FET-Jet Calculator(TM) (https://info.unitedsic.com/fet-jet) on-line tool, which are shown to match the actual measurements quite well. Finally, we discuss how the high efficiency of SiC FETs allows further BOM cost reduction for Totem-pole PFC.

AGENDA:

• Introduction
• Benefits of TPPFC
• CCM vs CrM
• Performance of Gen 4 SiC FETs
• Measured efficiency (SR on slow leg)
• Calculation of device loss using FET-Jet Calculator
• More cost-effective design (diode on slow leg)
• Summary
• Design support