This reference design is a full-bridge topology that is comprised of a TPS7H5005-SEP referenced on secondary ground that controls three TPS7H6005-SEP half-bridge gate drivers. The two drivers referenced to the primary side operate in pulse width modulation (PWM) mode which allows for the design to achieve zero-voltage switching (ZVS) at higher loading conditions. On the secondary side, the other driver controls a pair of secondary rectifiers to further improve the conversion efficiency. In this design, the controller, half-bridge drivers and GaN field-effect transistors (FETs) are chosen to meet radiation for geostationary orbit (GEO). These components can be swapped out to meet other mission specifications.
| Output voltage options | PMP23391.1 |
|---|---|
| Vin (Min) (V) | 22 |
| Vin (Max) (V) | 36 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 25 |
| Output Power (W) | 300 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Full Bridge- 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 overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
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Design file that contains information on physical board layer of design PCB
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Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 300W, 12V Output ZVS Full-Bridge Converter Reference Design for 100kRad Applications | PDF | HTML | Mar 14, 2025 |
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