1400W 12V phase-shift full-bridge with 600V CoolMOS™ CFD7 and XMC™
This DC-DC converter proves the feasibility of PSFB topology as high efficiency topology at the level of fully resonant topologies when combined with the latest Infineon technology devices.
It proves that digital control, powered by XMC™ Infineon microcontrollers, is not only capable of controlling PSFB topology but also to overcome it's drawbacks and enable the usage of the latest Infineon devices to achieve the best possible performance.
This converter provides a complete Infineon system solution for a 1400W DC-DC converter 400V to 12V which achieves 97% peak efficiency. The achieved power density is in the range of 3.70 W/cm³ (60.78 W/in³), which is enabled by the use of SMD packages, the innovative stacked magnetic construction and the innovative cooling solution.
The CoolMOS™ CFD7 in ThinPAK package, is the most recent and best performance high voltage fast body diode device from Infineon, combined with a low parasitic package and an optimized layout achieves incomparable performance with minimum stress on devices, enabled also by the innovative cooling concept presented in this board.
Summary of Features
- Full SMD solution
- Innovative cooling concept
- Novel integrated magnetics structure
- High efficiency, high power density
- Full or nearly full ZVS in all load range
- Full digital control
- SR drain overshoot reduction (patent pending)
- Best performance HV and LV power devices