This reference design provides four isolated outputs of 24 V,15 V, –15 V, 8 V and maximum 150-W output with two-switch flyback topology. The power supply can be powered from 350-V to 1500-V DC input. This design uses the valley switching UCC28740 flyback controller . The design achieves 89.11% efficiency at 600-V input and 86.17% efficiency at 1500-V input, full-load condition.
| Output voltage options | PMP41031.1 | PMP41031.2 | PMP41031.3 | PMP41031.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 350 | 350 | 350 | 350 |
| Vin (Max) (V) | 1500 | 1500 | 1500 | 1500 |
| Vout (Nom) (V) | 24 | 15 | -15 | 8 |
| Iout (Max) (A) | 3 | 3 | .8 | 2 |
| Output Power (W) | 72 | 45 | 12 | 16 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated | Isolated |
| Input Type | DC | DC | DC | DC |
| Topology | Flyback- Quasi Resonant | Flyback- Quasi Resonant | Flyback- Quasi Resonant | Flyback- Quasi Resonant |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
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
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Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | 350-V to 1500-V Input 150-W Isolated Auxiliary Power Reference Design | PDF | HTML | Oct. 09, 2023 |
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