7 October 2011

Powerex launches low-profile split dual Si/SiC hybrid IGBT modules

Combining its NFH-Series silicon-based insulated-gate bipolar transistor (IGBT) with a Zero Recovery silicon carbide (SiC) Schottky diode, Powerex Inc of Youngwood, PA, USA is now offering split dual Si/SiC hybrid IGBT modules (the QID1210005 and QID1210006) designed for high-frequency applications (upwards of 30kHz for hard switching and 60–80kHz for soft switching).

In January, the US Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) awarded a $5.15m, three-year grant to fund SiC power device development, with the bulk going to project leader Cree Inc of Durham, NC (which makes SiC power devices), along with partners Powerex, high-power semiconductor manufacturers ABB Ltd of Zurich, Switzerland, and North Carolina State University (NCSU).

Each of the new modules consists of two IGBTs, with each transistor having a reverse-connected Zero Recovery free-wheel SiC Schottky diode, yielding a 30% decrease in switching losses. All components and interconnects are isolated from the heat-sinking baseplate, offering simplified system assembly and thermal management.

The QID1210005 and QID1210006 have a very low profile and can be easily reconfigured, says Powerex. In total, five different configurations are possible: independent; as a dual; in parallel; common collector; and common emitter.

Rated at 100A/1200V, the QID1210005 and QID1210006 feature: a low ESW (off); aluminum nitride isolation; and a low internal inductance. The QID1210005 has a copper baseplate, and the QID1210006 has an AlSiC baseplate for extended thermal cycle life.

The hybrid modules can be used in applications including: energy-saving power systems such as fans, pumps and consumer appliances; high-frequency-type power systems such as uninterruptible power supplies (UPS), high-speed motor drives, induction heating, welders and robotics; and high-temperature power systems such as power electronics in electric vehicle and aviation systems.

The split dual Si/SiC hybrid IGBT modules can be used with standard Powerex NFH gate drivers.

Tags: Powerex Si/SiC hybrid IGBT modules

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