3-Phase AC 400V Input Vienna Rectifier PFC Power Supply

3-phase AC power is provided to industrial facilities, etc., and 400V (line voltage) systems are widely used outside Japan. When using such 3-phase AC 400V system inputs for EV chargers and other equipment, a PFC (Power Factor Correction) power supply that rectifies AC to DC with a high power-factor is essential.
This design is a PFC power supply that inputs a 3-phase AC 400V and outputs a DC 750V. A Vienna rectifier topology is used to achieve high-efficiency in 3-level operation, and power can be supplied to 5kW.
Design tips on each portion of the circuit, method of operation, and design information such as circuit diagrams and PCB patterns are available, please use them for your design.

This is a picture of the Vienna rectifier circuit PFC power supply that supports 3-phase AC 400V input.
Board Appearance
TLP7920F TLP7920F TLP7920F TLP7920F TLP7920F TLP7920F TLP7920F TLP7920F TRS15N120HB TRS15N120HB TRS15N120HB TRS15N120HB TRS15N120HB TRS15N120HB TRS15N120HB TLP5774H TLP5774H TLP5774H TLP5774H TLP5774H TLP5774H TLP5774H TK065N65Z TK065N65Z TK065N65Z TK065N65Z TK065N65Z TK065N65Z TK065N65Z

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Features

  • 3-phase, 3-level AC-DC converter circuit
  • Total efficiency 98.7% (Vin = 440V, 100% load)
  • Provides appropriate power devices (MOSFET and SiC diode), gate driver photocouplers, and isolation amplifiers totally

Description

Input voltage 3-phase AC 360V to 440V
Output voltage DC 750V
Output power 5 kW
Circuit topology Vienna rectifier circuit
Efficiency Curve

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Design Data

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Used Toshiba Items

Part Number Device Category Portion Usage Description
Power MOSFET (N-ch 500V<VDSS≤700V) Main switch section・6 N-ch MOSFET, 650 V, 0.065 Ω@10V, TO-247, DTMOSⅥ
SiC Schottky barrier diode Rectifier section・6
 1200 V/15 A SiC Schottky Barrier Diode, TO-247
Photocoupler (photo-IC output) Gate drive circuit・6
 Photocoupler (photo-IC output), IGBT driver, IOP=+/-4.0 A, 5000 Vrms, SO6L
Photocoupler(Isolation Amplifier) Voltage detection circuit・4 Photocoupler(Isolation Amplifier), Analog output, 5000 Vrms, DIP8

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