This reference design is a digitally controlled, compact 1-kW AC/DC power supply design for server power supply unit (PSU) and telecom rectifier applications. The highly efficient design supports two main power stages, including a front-end continuous conduction mode (CCM) totem-pole bridgeless power factor correction (PFC) stage. The PFC stage features LMG341x GaN FET with integrated driver to provide enhanced efficiency across a wide load range and meet 80-plus titanium requirements. The design also supports a half-bridge LLC isolated DC/DC stage to achieve a +12-V DC output at 1-kW. Two control cards use C2000™ Piccolo™ microcontrollers to control both power stages.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | |
|---|---|---|---|
| * | Design guide | 1-kW, 80 Plus Titanium, GaN CCM Totem Pole Bridgeless PFC and Half-Bridge LLC (Rev. D) | Jan. 13, 2022 |
| White paper | 結合 TI GaN FETs 與 C2000™ 即時 MCU，實現功率密集與有效率的數位電源系統 | Mar. 18, 2021 | |
| White paper | TI GaN FET와 C2000™ 실시간 MCU를 결합하여 전력 밀도가 높고 효율적인 전원 시스템 달성 | Mar. 18, 2021 | |
| White paper | Achieve Power-Dense and Efficient Digital Power Systems by Combining TI GaN FETs | Jan. 05, 2021 |
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