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25kW Bi-directional Active Front End (AFE) AC-DC Converter Reference Design

Product shot of Wolfspeed's Reference Design of a 25kW Bi-directional Active Front End (AFE) AC-DC Converter.
CRD25AD12N-FMC

This reference design demonstrates the application of Wolfspeed’s WolfPACK™ power modules to create a bidirectional high power density Active Front End (AFE) that can be applied to electric vehicle (EV) fast charging; industrial motor drives; power supplies and renewable energy applications. The design is ideal for scaling up to higher power levels by interleaving multiple 25kW AFE AFE’s. The use of a single power module with an isolated substrate simplifies the system design with commonly used thermal management techniques. The use of Wolfspeed’s third generation C3M MOSFET MOSFET’s enables high switching frequencies and faster switching speeds resulting in increased control bandwidth and power factor as well as smaller magnetics and DC Bus Capacitors.

Specifications

  • Three Phase input voltage between 400 VAC and 480 VAC
  • Output Voltage of 800V DC/ 900V Max
  • Output Power: 25 kW with 480 VAC input and 20 kW with 400 VAC input
  • Switching frequency of 100Khz
  • Controller board design and firmware example
  • Auxiliary Circuitry Included for Safe Operation: Pre Charge Soft Start; Contactors; Fuses and EMI/EMC Filter
  • Complete Stack up Including: Modules; Heatsink; Magnetics; Power PCBs; Gate Drivers; Voltage / Current Sensors; and Controller
Applications
  • EV Off Board Charger
  • Industrial Motor Drives
  • Power Supplies
  • Renewable Energy
What's Included

Reference Design Files for

  • Power board
  • Controller Board

System design files for

  • System 3D model
  • Auxilary component BOM
Request Separately
  • Firmware
Microcontroller
Gate Driver Board

Analog Devices EVAL-ADUM4146WHB1Z

Silicon labs S823H-AAWA-KIT

Texas Instruments CGD1700HB2M-UNA (Paper Design Only)

Gate Driver Board

Analog Devices EVAL-ADUM4146WHB1Z

Silicon labs S823H-AAWA-KIT

Texas Instruments CGD1700HB2M-UNA (Paper Design Only)

Gate Driver Board

Analog Devices EVAL-ADUM4146WHB1Z

Silicon labs S823H-AAWA-KIT

Texas Instruments CGD1700HB2M-UNA (Paper Design Only)

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