Powering Electronics with Gallium Nitride: From Fast Chargers to Electric Vehicles 

I can see GaN power devices have come a LONG ways since I saw the first 'GaN power bricks' around a decade ago.

That’s great, but it seems that “belkins” purchase whole ultra fast controller series right at factory. Because I see no publicly available ones in catalogs. What a benefit of using GaN when controllers are for 300kHz (I’ve found only one for 800kHz). Another question is about planar transformers. Where are they? Only in fashion boutiques .. or, sorry: at Apple’s facility. So, it’s enough to advertise just chargers