Should I think about it all?
Without the design engineer who is willing to discuss the circuitry and design considerations?
Congrats, Markus, you've therefore achieved what not many came close to.
For the record, all my intergate&reset, sample&hold and similar efforts have been a plain failure
To bad to hear about your sample and hold !
Well, my approach is given by math and confirmed by simulation BUT the proto in real life for proof of concept is still in the waiting queue.
To much work and other drawbacks...
Most likely both reasons will also prevent me from jumping in the car and driving to Tom right now.
@Tom:
Why not going for high frequencies?
Good point.
I am going for 400kHz with a plain halfbridge with IRFB4115.
So 2x500kHz in class I is sounding like a possible approach.
At very high modulation levels the advantage of double frequency will decrease, because at max modulation both stages operate synchronously.
...might also impact the body diode topic...
But up to moderate modulation levels the trick should play well.
Attachments
Just changed my mind - to leave Powersoft K20 in the dust, 2 x 250V bus would be required. Still possible with 600V CoolMos and Carbides.
Anybody here interested in building such a converter?
Thanks for your greetings.
It's titanium cyber tuning. The conductivity is much higher than of the natural spinal cord. ==> Increased data rates.
Just the backward fixations will be removed sooner or later.
The inner cage and the MACS on the side will last forever (hopefully).
Besides conductivity also the shielding effect is helpful to reduce interference and data corruption....
Erhm, well and mechanical design allows me to live without a wheelchair after my accident.
Sorry for OT. Let's step back to technical discussion.
Placing your amps in the kitchen were you have a 3-phase power line?
...better ask your wife first..
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Do you actually imply that everytime we are faced with an amplifier choice we should be able to interview the designer himself ?
No. The spec does not tell me how it will sound. Unfortunately.
I am still looking to understand a reasonable pattern that correlates circuits, components and measurements to a certain sound.
Getting just some measurements without any correlating info to circuitry, components or sound - does not allow to learn anything.
That's why I am wondering why I should think about it at all.
...on the other hand - it is commonly accepted that '42' is the answer
I did this test with some well recorded tracks. Ripped cd to wav then encoded the tracks as 320 constant bitrate with lame. Burned the mp3 and wav back to cd and made my sister listen. In every instance she was able to identify the wave. I asked her why she preferred those tracks and she said it sounded more real to her. She is not any kind of audiophile and spotted the wav.
Yamaha cd player
Soundcraftsmen dx4000 preamp
Threshold sa3 amp
Usher s520 bookshelf speakers
Yamaha cd player
Soundcraftsmen dx4000 preamp
Threshold sa3 amp
Usher s520 bookshelf speakers
I don't really have an opinion on this specifically as I have only heard dual mono 50W class t amps. I would be really interested to know who those people were. I think it really depends on what speakers you have and how loud you want to listen to music. If your speakers are 83dB then a high powered class d will kick but on any low powered Class A amp. On the other hand if your speakers are 90dB or higher then a class D has no chance of beating the F5 in my opinion
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If you are getting a headache from listening to a class D amp, try a different amp or different headphones.
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