power follower

[renjiish]

Dear Nelson and friends,
please see this attachment,does this topology works properly.anybody have experiance in this circuit.please have a look at this
renjish

 

[jeapel]

hi

first for a good power follower you need a
ccs (constant courant source) not just
a source resistor

and the best driver is a tube driver with
very low zout 50 ohm in my case

www.loginnovation.com/jeapel

bye

 

[jeapel]

maybe more explication

a source follower with ccs is very good :

gain=1
low distorsion without feedback
good widthband

but the sound is very neutral and to get a good
amplifier you need to add some personality to
the sound

a good way is tube (triode not pentode) with
even harmonics

don t forget if you go with transfo you need a equivalent
low zout 100 ohm max. to drive your output follower

but for me sorry double follower= double neutral sound

bye

 

[tiefbassuebertr]

Dear Nelson and friends,
please see this attachment,does this topology works properly.anybody have experiance in this circuit.please have a look at this
renjish

This approach looks similar to this under
http://www.diyaudio.com/forums/solid-state/48364-class-power-follower-2.html
and those from Tim Paravicini (M100A)
https://www.stereophile.com/solidpoweramps/earyoshino_m100a_monoblock_power_amplifier/index.html
PARAVICINI M100A Mono Power
N C A U D I O (Jean Hiraga)
http://www.diyaudio.com/forums/pass-labs/144105-o-h-schade-1938-meets-mosfet-2.html#post1942621 (post #20)

 

[Nelson Pass]

please see this attachment,does this topology works properly.

A lot depends on the quality of the transformer, especially when the gain
is going to be 10:1, and you want to have a low impedance driving the primary.