This reference design is a full-bridge topology that is comprised of a TPS7H5005-SEP referenced on secondary ground that controls four TPS7H6005-SEP half-bridge gate drivers. The two drivers referenced to the primary side operate in 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 in a current-doubler configuration to further improve the conversion efficiency. In this design the controller, half-bridge drivers and GaN field-effect transistors (FET) are chosen to meet radiation for geostationary orbit (GEO). These components can be swapped out to meet other mission specifications.
| Output voltage options | PMP23661.1 |
|---|---|
| Vin (Min) (V) | 70 |
| Vin (Max) (V) | 110 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 42 |
| Output Power (W) | 504 |
| 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
PCB layer plot file used for generating PCB design layout
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Test report | 500W, 12V Output ZVS Full-Bridge with Current-Doubler Converter Reference Design for 100kRad Applications | PDF | HTML | Jun 19, 2026 |
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