400 V 3.3 kW bi-directional Phase Shift Full Bridge (PSFB) Topology using 600 V CoolMOS™ CFD7 and XMC™ (Buck Mode)

Open online SPICE simulator circuit link: power_400VDC_SMPS_bi-directional_PSFB_buck_mode.tsc

Energy Transfer >>

Input

Output

400V 3.3kW Bi-directional Phase Shift Full Bridge with 600 V CoolMOS™ CFD7 and XMC™
Application Circuit: Buck Converter Mode

RATIO=145.59m

This board achieves 98% efficiency in buck mode. Nominal input voltage of the converter is 400 V.
The converter starts to operate at 375 V with a hysteresis window up to 415 V and down to 350 V.
The attained power density is in the range of 4.34W/cm³ (71.19W/in³), which is enabled by the
use of SMD packages and the innovative stacked magnetic construction. When combined with
the latest technologies from Infineon, this DC-DC converter proves the feasibility and high efficiency
of PSFB designs at the level of fully resonant topologies.