Axign/AX5689.... Fresh From the Bench: Improving GaN with Digital Control

[PeterOo]

“Designed with a full digital circuit and an Axign class D amplifier equipped with MOS FET output,” looks like Onkyo Muse series will be based on this technology.


https://onkyo.com/intl/muse-y-50-network-streamer-integrated-amplifier

So it looks like Monolithic Power Systems will keep using the name Axign.

 

[KL....]

Battery powered tests showed excellent sound quality!

Thank you, @GaNMaster, Ah, now running (w/ Battery PS, w/ Photos, nice).
What V is the Battery PS? What GaN have you utilised? Are you ready to provide Measure/s?

 

[Roland68]

So it looks like Monolithic Power Systems will keep using the name Axign.

MPS has acquired Axign, manufactures the ICs, continues to use the name for the product line, and further develops the technology.

 

[GaNMaster]

What V is the Battery PS? What GaN have you utilised? Are you ready to provide Measure/s?

52V, ISG3208, yes, little later)))

 

[GaNMaster]

MPS has acquired Axign, manufactures the ICs, continues to use the name for the product line, and further develops the technology.

From my point of view, this chip turned out to be very successful. But it requires a very high-speed output stage.
I did a lot of experiments, but GaN showed the best results.

 

[KL....]

From my point of view, this chip turned out to be very successful. But it requires a very high-speed output stage.
I did a lot of experiments, but GaN showed the best results.

Thank you, @GaNMaster, what Switching Frequency have you utilised?

 

[GaNMaster]

1.2Mhz