PeterOo
Active Member
So it looks like Monolithic Power Systems will keep using the name Axign.
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Axign/AX5689.... Fresh From the Bench: Improving GaN with Digital Control
- Thread starter KL....
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- Thread Starter
- #102
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
Master Contributor
MPS has acquired Axign, manufactures the ICs, continues to use the name for the product line, and further develops the technology.
52V, ISG3208, yes, little later)))
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.
- Thread Starter
- #106
Thank you, @GaNMaster, what Switching Frequency have you utilised?
- Thread Starter
- #108
Hi @GaNMaster
I recently started designing an amplifier board with this IC, so I was wondering if you would be willing to share your schematics and answer a few questions about the design. If so, please send me a DM (Im not sure if in depth design questions would be interesting for others), and no problems if you dont want to, or if you dont have the time
I recently started designing an amplifier board with this IC, so I was wondering if you would be willing to share your schematics and answer a few questions about the design. If so, please send me a DM (Im not sure if in depth design questions would be interesting for others), and no problems if you dont want to, or if you dont have the time
- Thread Starter
- #112
Thank you, @sb57 & @GaNMaster, Yes, very interested and @GaNMaster, very interested in viewing your current measures/grapghs :=)Hi @GaNMaster
I recently started designing an amplifier board with this IC, so I was wondering if you would be willing to share your schematics and answer a few questions about the design. If so, please send me a DM (Im not sure if in depth design questions would be interesting for others), and no problems if you dont want to, or if you dont have the time
Hi! Ask your questions here; everyone will be interested. Unless, of course, your project is commercial.
Sorry for the late reply, I was on a long business trip to another country.
Hi! Sorry, my exam season just started so I havent had much time to play around and work on side projects.
In the meantime I already ordered PCBs from JLCPCB. I made the first version as kind of a demo board, and I will be connecting inputs and outputs with wires. Not ideal I know, but it should allow me to test thing before designing the real deal. I wanted to ask about reference ADC, since there isnt much info about it in the datasheet. How should I connect it and if there are any special settings in the registers. Also in general I would like to know if you got register dump from somewhere or if you did the tuning by yourself.
Then when it comes to power stage I thought about going with EPC23102, but it seems to require high and low PWM signal with dead time. How did you get around that? I also designed a power stage board with ISG3206LA, which seems to have integrated protection and shouldnt need dead time. I generated 2 opposite PWMs by passing them through XOR gates, since I havent found if it is possible to generate them in the amp directly.
The third board I designed is a DSP, ADAU1467 from Analog devices. That should allow me to play around with sound in Sigma studio.
I also had some random ideas about doing multi active speaker systems using A2B chips, which would for using only one twisted pair to connect them, and then there is an option to go with CC8530 from TI, which can transfer high quality audio wirelessly.
In any case, boards should be here soon, so I will probably play around more with them next month after I deal with the exams
