class XD - Doug Self is at it again

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AndrewT

R.I.P.
Joined 2004
Hi,
I cannot fault the white paper.

There are similarities to the ClassA conversion used to linearise ClassAB push pull opamps.
Which came first?

Can we reduce dissipation in the converted opamp this way?

How does the XDpp work?
What is inside the -a stage that varies the CCS?
 
S

sreten

R.I.P.
Joined 2003
AndrewT said:

I cannot fault the white paper.
Click to expand...

Hmmm........

Well its a white paper so it doesn't have to be accurate.

IMO it sets out to deliberately mislead the reader into
thinking it is applicable to EF output states, it is not,
though they haven't bothered swapping the types
of the output devices, a PNP is shown as NPN.
(figs 5, 6 and 7)

It only works well with CFP outputs.

:)/sreten.
 
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