EVAL_2KW_ZVS_FB_CFD2

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2KW DC-DC/ZVS full-bridge stage 380/48 VDC, 96.6% peak efficiency

The ZVS phase shift full-bridge evaluation board featuring CoolMOS™ CFD2 superjunction (SJ) MOSFET (IPW65R080CFD) represents the new developed ZVS DC-DC converter for telecom rectifiers with an output voltage from 45VDC to 56VDC and an output power of 2kW. This converter works with an input voltage between 350VDC and 420VDC (typical 385VDC) and a switching frequency of 100kHz on the primary side.

  • External resonant inductance and dead setting optimized for 650V CoolMOS™ CFD2 SJ MOSFET in 80mΩ (IPW65R080CFD)
  • Secondary synchronous rectification 200V
  • 12mΩ OptiMOS™ 5 200V technology with fast body diode (IPP110N20N3 G)
  • Infineon 2EDN7524F dual channel 5A, high-speed, low-side gate driver with high negative input voltage capability

Summary of features

  • Input voltage: 350-420V DC
  • Output voltage: 45 up to 56V DC
  • Output power: up to 2kW
  • Peak efficiency: 96.6%

Summary of benefits

  • Full ZVS achieved even in the leading leg of the bridge starting from 25% load onwards
  • Optimized primary and secondary delay times

Target applications

  • Telecom rectifiers/ SMPS
  • Industrial high power  SMPS
  • High power battery chargers

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