Power Electronics
The IGBT platform delivers low switching losses in softswitching home appliance applications such as induction cooking and inverterbased microwave ovens Image courtesy of Alpha and Omega

The IGBT platform delivers low switching losses in soft-switching home appliance applications such as induction cooking and inverter-based microwave ovens. (Image courtesy of Alpha and Omega).

IGBTs Optimized for Soft-Switching Applications

Alpha and Omega Semiconductor Ltd. (AOS) recently introduced the new E-series IGBT platform with the 1200V AOK20B120E1 and 1350V AOK20B135E1. This new platform delivers low switching losses in soft-switching home appliance applications such as induction cooking, rice cookers and inverter-based microwave ovens.

The devices for the E-Series are built upon AOS's patent-pending AlphaIGBT™ technology platform, and feature VCE (SAT) and fast turn-off characteristics that reduce the power losses incurred during conduction and switching. The high BVCES rating and rugged BV performance provide a larger resonant voltage safety margin to prevent avalanche destruction from voltage transients. Moreover, EMI is minimized as a result of smooth turn-off current waveforms.

Technical Highlights

  • 1200V/1350V IGBTs with freewheeling diode in a TO-247 package
  • Low turn-off delay time: less than 200ns
  • EOFF increase by the temperature (25°C vs. 150°C): less than 50%
  • IC (100°C) = 20A
  • TJ(max) = 175°C
  • VCE(SAT) = 1.68V typ (AOK20B120E1)
  • VCE(SAT) = 1.8V typ (AOK20B135E1)

The AOK20B120E1 and AOK20B135E1 are immediately available in production quantities with a lead-time of 12-14 weeks. The unit price for 10,000 pieces of AOK20B120E1 and AOK20B135E1 is $1.82 and $1.72, respectively.

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