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IGBT module for AT-NPC 3-level 12-in-1

Posted: 25 Apr 2013 ?? ?Print Version ?Bookmark and Share

Keywords:IGBT? UPS? RB-IGBT?

Fuji Electric has announced the IGBT module series for the AT-NPC 3-Level 12-in-1 that the company said contains essential circuitry to drive power electronic equipment in a single package. Additionally, the modules enable reductions in the size of power electronic equipment such as inverters and uninterruptible power system (UPS) equipment, said the firm.

As a result of using the modules, the equipment will take up 60 per cent less mounting space than using a combination of conventional modules, stated Fuji Electric. The modules also integrate an AT-NPC 3-level conversion circuit realised with Fuji Electric's proprietary reverse-blocking IGBT (RB-IGBT) technology reducing power loss by half.3

The IGBT module provide product lineups equipped with solder pin or press-fit pin depending on customer's assembly line. Compared with 2-level IGBT under the following conditions: 20kVA inverter operating at 7kHz carrier frequency, 700V power supply and 30A output current (effective value). Likewise, the 3-level conversion circuit cuts switching loss because half of the power supply voltage in output swing by setting 3-level output voltage compared with the ordinal 2-level circuit. Furthermore, it reduces conduction loss by using Fuji Electric's proprietary RB-IGBTs, which eliminate reverse blocking diodes, noted the company. These improvements significantly reduce power loss and achieve high efficiency power conversion.

Geared for inverters, UPS, power conditioners for household-use photovoltaic systems, etc., the modules will be available in April.

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