I like how you write (pun intended).
But if a diamond ganfet costs $5,000, surely someone will hear a difference and have to have it. ;)
GaN Class D amps are already outdated, it's time for GaN on Diamond!
The title is a bit of a troll for everyone who kept saying that Class D wouldn't be high-end until GaN transistors appeared.
But the truth is advanced GaN transistors on diamond substrates may be coming soon, further elevating the switching speed and power efficiency.
Will they sound better? Meh, I like early 21st century Class D. :)
Showing 5 responses by erik_squires
Yep, Carver definitely had some early class H designs. Some of them would go up in smoke too. Much later he realized his switching speed was too fast, and he’d end up in what we call a "race condition." Meaning, you have two circuits racing to be first, and sometimes it was a close tie and zap, short. :) Of course, race conditions happen in software as well. I believe in Carver's case it was a matter of one circuit not shutting off fast enough, sometimes. IN that case you'd have two different voltage rails essentially short to each other, and hilarity ensued. |
@mark200mph - Now I'm curious, what do you have that is Class H? How do you like it? |
@jaymark You are most likely correct. I thought it was interesting that the semiconductor industry has been playing around with synthetic precious gems since the late 1950’s. There was a recent article about HP using silicon on sapphire technology for floppy disk controllers, with a ridiculously low chip yield of 9% (i.e. 91% of the chips didn’t pass basic quality testing). |