Summary: CCM TP PFC Design with TI GaN • TI GaN provides different QFN package variants for optimized thermal design at full power and max 𝑇𝑎. • TI GaN’s30 V/ns to 150 V/ns adjustable slew rate provides a design flexibility to optimize the …

A tutorial on PCB layout when GaN Power Stages to achieve performance and reliability. GaN-based CCM Totem-Pole design with 2X power density. Question #1: Why is GaN so exciting? Why GaN Power Stage? Why use a solution that limits your system performance?

This reference design is a high-density and high efficiency, 8kW power supply. The first stage is a TCM (triangular conduction mode) power factor correction (PFC) converter followed by a delta-delta connected three phase inductor-inductor-capacitor (LLC) converter.

This application note highlights the motivation, operating principle, and design considerations of Bridgeless Totem Pole PFC (BTPPFC) using GaN Enhancement-mode HEMTs (E-HEMTs). The design of a 3kW BTPPFC example using GaN Systems’ 650V GaN E-HEMTs is presented in detail. 2. Why a GaN-based bridgeless PFC?

Boost-derived topologies are the most common for PFC. GaN-based totem-pole PFC proves to be a winning topology in terms of efficiency and power density. This document shows the benefits of GaN-based totem-pole PFC and introduces its analysis and design methodology, including equations for power loss

Jan 15, 2021 · This article examines GaN-based PFC rectifiers in detail, reviewing GaN bridgeless PFC topologies, control, and performance.

Aug 11, 2023 · GaN Systems releases industry’s first E-HEMT bridgeless-totem-pole Power Factor Correction reference design. OTTAWA, Ontario, May 9, 2017 – Achieving efficiencies greater than 98% in conventional Power Factor Correction (PFC) circuits is challenging. The major hurdle is fixed diode bridge losses.

This reference design uses UCC28811 power factor correction (PFC) flyback controller to create an isolated 60-V output capable of 1-A loading while keeping input harmonic distortion low. The high efficiency of using a LMG3411R150 GaN primary switch allows for compact solution size and low temperature rise during operation. Table 1-1.

Jan 2, 2020 · For this specific 1.5KW CCM BTP-PFC design example, an optimal frequency range for GaN is 200KHz to 250KHz to trade-off the efficiency and power density. This article describes a simple EMI filter modeling methodology for a high-frequency BTP-PFC.

ZVS based GaN totem-pole PFC has been shown to operate well above 1 MHz switching frequency while still maintain 99% efficiency [1], [8]. The soft-switching GaN totem-pole PFC with increased switch-ing frequency and efficiency therefore significantly improves the power density compared with the CCM Boost PFC [1], [8].