Totem-Pole Bridgeless PFC Converter

RDPFC56F82748

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This reference design demonstrates the implementation of a Totem-Pole Bridgeless Power Factor Correction (PFC) using MC56F83783, MC56F81xxx or MC56F82748 Digital Signal Controllers (DSC).

Block Diagram

Totem-Pole Bridgeless

RDPFC56F82748 Block Diagram
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Supported Devices

Processors and Microcontrollers

32-Bit 56800EX/EF Core

  • MC56F81xxx: Up to 100MHz Digital Signal Controllers with DSASS and Operational Amplifier
  • MC56F83xxx: Performance Level Digital Signal Controllers, USB FS OTG, CAN FD

Features

  • PF > 0.99@100% load; THDi < 5%@50% load
  • Over-current, over-/under-voltage, voltage brown-in, over-temperature, power limit protection functions
  • Power
    • 12V/240W output with universal mains input
  • Interface
    • Isolated USB interface for FreeMASTER connection
    • Isolated SCI communication between primary side and secondary side
  • Other
    • Flash updating from secondary side

Documentation

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Design Files

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1 design file

Software

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5 software files

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