This reference design is a compact, high efficiency, 24-V DC, 500-W reference design for industrial AC/DC power supplies. This design consists of a front-end, two-phase interleaved transition mode (TM) power factor correction (PFC) based on the UCC28064A. This minimizes the PFC inductor size and reduces EMI filter requirements. The DC-DC is implemented using the HB-LLC stage implemented using TI's UCC256301 device. For efficiency improvement, synchronous rectification is used at secondary which uses the UCC24612.
| Output voltage options | TIDA-010015.1 |
|---|---|
| Vin (Min) (V) | 85 |
| Vin (Max) (V) | 265 |
| Vout (Nom) (V) | 24 |
| Iout (Max) (A) | 21 |
| Output Power (W) | 504 |
| Isolated/Non-Isolated | Isolated |
| Input Type | AC |
| Topology | Boost- Transition Mode^Half Bridge- LLC |
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 | 94.5% Efficiency, 500-W Industrial AC/DC Reference Design (Rev. B) | PDF | HTML | May 06, 2020 |
| Technical article | How topology selection can help improve reliability in industrial AC/DC power supplies | Feb. 14, 2019 |
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