Design of a 2.5 kW Four-Level Interleaved Flying Capacitor Multilevel Totem-Pole PFC Converter With AC-Side Passive Volume Optimization
Naveed Ishraq,
Ayan Mallik
Abstract:In this paper, a high-efficiency and high-density 2.5 kW four-level interleaved flying capacitor multilevel (FCML) totempole bridgeless power-factor-correction (PFC) rectifier with 200 V GaN devices is analyzed, designed, and tested. This 2.5 kW four-level continuous conduction mode (CCM) GaN totem pole PFC operates with three times inductor current ripple frequency than that of the switching frequency which significantly reduces the size of the inductors while also supporting switching loss reduction. This ar… Show more
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