3-Phase Inverter Using SiC MOSFET

This reference design provides design guide, data and other contents of the 3-phase inverter using 1200 V SiC MOSFET. It drives AC 440V motors.

PCB Photo (Inverter Board)
TLP7820 TLP7820 TLP7820 TLP7820 TLP5774H TLP5774H TLP5774H TLP5774H TLP5774H TLP5774H TLP5774H TC75W59FU TC75W59FU TLP7820 TLP7820 TLP7820 TLP7820 TW045Z120C TW045N120C TW045Z120C / TW045N120C TW045Z120C / TW045N120C TW045Z120C / TW045N120C TW045Z120C / TW045N120C TW045Z120C / TW045N120C TW045Z120C / TW045N120C TW045Z120C / TW045N120C TW045Z120C / TW045N120C

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Features

  • Drives AC 440 V motor using 1200 V SiC MOSFETs
  • Outline size : 250 mm x 145 mm (Inverter Board)
  • Uses optimum SiC MOSFETs, photocouplers, and operational amplifiers etc.

Description

Power In (AC-DC Board) 3-phase AC 340 to 440 V, 16 A (Max.)
Power Out (AC-DC Board) DC 530 to 600 V
Power Input (Inverter Board) DC 530 to 670 V
Power Output (Inverter Board) 3-phase AC 340 to 440 V, 15 A
Fault Detection Overcurrent(U-phase/V-phase/W-phase), Bus overvoltage, Bus overcurrent , Overtemperature(2 ch.)
Efficiency Curve (Example)
Efficiency Curve (Example)

Design Documents

Design Documents contain the documents below.

Design Data

Design Data 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.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Power SiC MOSFETs Inverter switching·6 N-ch SiC MOSFET, 1200 V, 0.045 Ω(typ.)@18 V, TO-247-4L(X), 3rd Gen.
Power SiC MOSFETs Inverter switching·6 N-ch SiC MOSFET, 1200 V, 0.045 Ω(typ.)@18V, TO-247, 3rd Gen.
Photocoupler (photo-IC output) Gate driver·6 Photocoupler (photo-IC output), IGBT driver, IOP=+/-4.0 A, 5000 Vrms, SO6L
Photocoupler(Isolation Amplifier) Isolated sensor·5 Photocoupler(Isolation Amplifier), Analog output, 5000 Vrms, SO8L(LF4)
Comparator (CMOS) Comparator for error detection·3 Dual Comparator (CMOS), 7 V, +/-3.5 V, SOT-505(SM8)
Op-amp (Bipolar) Sensor amplifier·2 Dual Op-amp (Bipolar), 12 V, +/-6 V, SOT-505(SM8)
Op-amp (CMOS) Sensor amplifier·3 Dual Op-amp (CMOS), 7 V, +/-3.5 V, SOT-505(SM8)
Op-amp (CMOS) Sensor amplifier·2 Single Op-amp (CMOS), 5.5 V, +/-2.75 V, SOT-25(SMV)
L-MOS SHS series (TC74LCX-equivalent) Gate logic control·3 One-Gate Logic(L-MOS), 2-Input/AND, SOT-505(SM8)
Point regulator (single output) Internal power supply·4 200 mA Fixed Output LDO Regulator, 5 V, SOT-353F(UFV)
Small-signal MOSFET Driver for photo coupler etc.·7 N-ch MOSFET, 30 V, 0.1 A, 3.6 Ω@4V, SOT-323(USM)
Small Low ON resistance MOSFETs Switching for isolated power supply·2 N-ch MOSFET, 30 V, 15 A, 0.0089 Ω@10V, TSOP6F

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