3-Phase AC 400V Input PFC Converter

This reference design provides design guide, data and other contents of 4 kW 3-phase AC 400 V input PFC converter using 3-phase totem-pole topology with 1200 V SiC MOSFET.

Simple block diagram of 3-phase AC 400V Input PFC converter.
Simple Block Diagram
Efficiency curve of 3-phase AC 400V Input PFC converter.
Efficiency Curve


Input voltage 3-Phase AC 312 to 528 V
Output voltage DC 750 V
Output power 4.0k W
Circuit topology 3-Phase totem-pole


images of 3-phase AC 400V Input PFC converter.
  • Efficiency:97 % (Vin = 400 V, 100 % load)
  • Power Factor:0.99 (Vin = 400 V, 100 % load)
  • Outline size:500 mm x 320 mm x 160 mm
  • Total solution of SiC MOSFET (TW070J120B) and smart gate driver (TLP5214A)

Reference design files

Design, Document

“Design・Document” contains the documents listed below.

Design, File

“Design・File” contains the contents listed below.

*1:Actual PCB was designed on CR5000BD. The other files were made from CR5000BD file.
*2:The data was generated on CR5000BD.

Toshiba items

Part Number Device Category Portion Usage Description



Main switch・6

1200 V/70 mΩ (typ.) @VGS = 20 V/TO-3P(N)


Isolation amplifier

Voltage detection・3

Photocoupler (isolation amplifier) /Analog output/DIP8


Smart gate driver

Gate drive・6

Photocoupler  (photo-IC output) /Creepage and clearance 8 mm/High temperature 110 ℃ operation/SO16L



Technical inquiry

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