This reference design is a non-isolated AC/DC power supply design using the UCC28704 PSR controller to implement a high-voltage buck converter. The converter provides 6 V at 600 mA from an AC input of 100 VAC to 132 VAC. The design uses a coupled inductor to provide a 12-V supply voltage to the controller, eliminating the need for a separate bias supply. This design is one layer, compact and thermally efficient.
| Output voltage options | PMP22161.1 |
|---|---|
| Vin (Min) (V) | 100 |
| Vin (Max) (V) | 132 |
| Vout (Nom) (V) | 6 |
| Iout (Max) (A) | .6 |
| Output Power (W) | 3.6 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | AC |
| Topology | Buck- Non Sync |
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
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 3.6-W AC/DC Coupled Inductor Buck Reference Design | Apr. 06, 2020 |
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