Doug Self article in EETimes

[DSP_Geek]

He's focusing on power supply to solid-state amplifiers, and how to reject supply interference by proper amplifier design. Worth a read.

Audio amplifier power supply design - Part 3: Power-supply rail rejection

 

[Mooly]

It is worth a read 🙂
All Dougs books and articles should be required reading for anyone interested in the subject.

 

[abraxalito]

Parts 1 and 2 are excellent value too though I'm not totally in agreement with Doug's view that switch mode power supplies are undesirable for audio amps, and necessarily more expensive than unregulated linear supplies.

 

[Edmond Stuart]

improving PSRR

This material has already been published in EW+WW, March 1995. So, old wine in a new bottle. Besides, he doesn't even mention the most obvious and simple trick: a small cap, equal to Cdom, between the current mirror input and gnd. See also:
http://www.diyaudio.com/forums/soli...l-interview-bjt-vs-mosfet-79.html#post1207149
and here if TMC or TPC has been applied: http://www.diyaudio.com/forums/soli...terview-negative-feedback-57.html#post1161190

Cheers,
E.

 

[jez]

IMHO whilst Self's articles are very good and generally well researched he is guilty of propagating a "there is only ONE correct way of implementing any piece of circuitry and that's Doug Self's way" attitude.
In spite of this I am still very grateful to Self for those areas in which he has increased understanding for many people, including myself 😉 Even if I don't always agree with his viewpoint on matters such as Mosfets...

 

[Bonsai]

Yes.

 

[PB2]

Would be nice to have these in .pdf format.