Für alle die es nicht mitbekommen haben, Google hatte vor einiger Zeit 'ne Millionen als Preisgeld für einen Contest bei dem die Bewerber effizientere WR entwickeln sollen...und jetzt gibt es da einige Ergebnisse die wirklich beeindruckend sind, wer Englisch kann darf selber lesen:
Zitat von hackaday.comAlles anzeigenGoogle Contest Builds More Efficient Inverters
A few summers ago, Google and IEEE announced a one million dollar prize to build the most efficient and compact DC to AC inverter. It was called the Little Box Challenge, with the goal of a 2kW inverter with a power density greater than 50 Watts per cubic inch.
To put this goal into perspective, the DC inverter that would plug into a cigarette lighter in your car has a power density of about 1 or 2 Watts per cubic inch. Very expensive inverters meant for solar installations have a power density of about 5 Watts per cubic inch. This competition aimed to build an inverter with ten times the power density of what is available today.
Now, the results are in, and the results are extremely surprising. The best entry didn’t just meet the goal of 50 W/in³, it blew the goal out of the water.
The winning entry (PDF) comes from CE+T Power, and comes in a package with a volume of 13.77 in³. That’s a power density of 143 W/in³ for a unit you can hold in the palm of your hand. The biggest innovations come from the use of GaN transistors and an incredible thermal management solution.
Other finalists for this competition include Schneider Electric Team from France that managed a 100 W/in³ and a Virginia Tech team that managed a power density of 61.2 W/in³.
http://hackaday.com/2016/03/06…more-efficient-inverters/
Etwas Technische Details zu dem Gewinner WR:
https://www.littleboxchallenge…/finalists/56568-Tech.pdf
Also, Google wollte mindestenz 50W/Zoll³, aktuelle WR haben wohl nicht mehr als etwa 5W/Zoll³, gewonnen hat einer mit 143W/Zoll³ und andere Finalisten aus Frankreich haben immerhin noch 100W/Zoll³.
Beeindruckende Werte wie ich finde. Was meint ihr?