On-line presentation on SiC for High Power Density, supports “Little Box Challenge”

September 12, 2014 // By Graham Prophet
Cree Power is to present a webinar, "Achieving High Power Density Using Cree SiC MOSFETs and Diodes". The webinar is scheduled for Wednesday, September 24th at 11am EST (17:00 CET/4:00pm BST).

The presentation is, Cree says, part of its commitment to support participants in the “Little Box Challenge”. The Little Box Challenge, set and sponsored by Google and the IEEE, is an open competition to build a (much) smaller power inverter, with a $1,000,000 prize. Specifically, the challenge calls for design and build of a kW-scale inverter with the highest power density - at least 50W per cubic inch.

The challenge is set in light of conversion of DC from PV panels and batteries to household, commercial or vehicle-power AC. Existing inverter designs, say the sponsors, are just too big; “figure out how to shrink a [kW-range] inverter down to something smaller than a small laptop [that is, a reduction of over 10x], and smaller than anyone else, and you'll win a million dolars.”

Cree says that, although targeted at Little Box Challenge participants, the webinar will cover a wide range of topics that are of interest to anyone involved in the industry of high power conversion who is considering or actively using silicon carbide (SiC) MOSFETs or diodes in their designs.

During the webinar, participants will learn about the material differences of SiC as compared to silicon (Si) and the performance advantages that can be achieved using Cree SiC devices, including: low switching losses, high switching frequencies, high operating temperature capability, and high thermal conductivity. The webinar will also address key design considerations for implementing Cree SiC MOSFETs into an inverter topology, and provide participants with examples of how to boost the power density of inverter designs through silicon carbide. The webinar will last approximately 60 minutes and will be followed by a question and answer period.

You can register for the webinar here. It will be archived on the Cree website after the event, where there is also more information on the Little Box Challenge, or visit the the Little Box Challenge website itself.

Cree; www.cree.com