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
<p>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).</p>

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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