CFP Amplifier - Help Please!

[AndriyOL]

Yes, from LT but it's with general components without original models and it doesn't work.
The working LT schematic is here CFP Amplifier - Help Please!

The current schematic with resistors voltage drops and offset effects

 

[BV]

How could this file (SSAHP.asc) work with unconected V7, V8 and undefined simulation commands for AC and Transient analysis, without defined models??
I doubt, that somebody (autor inclusive..) tried to force to work this circuit at least in simulation..

 

[AndriyOL]

I don't know much about simulation. I did what Cortez sugested. When I press Run it works.

Perhaps you are right.

 

[Bigun]

I've tried already without success..

Try using generic models.

Anyhow, hope my advice was helpful in some way but, sorry, I'm not able to help any further.

 

[AndriyOL]

I already made the simulation with generic models

 

[BV]

SSAHP1 schematic as is (with differential input) is principially wrong. No chance to get it working in reality.

 

[AndriyOL]

Do you know how to make it right for balanced input?
I tried as SE version with only 4 input devices and no change.

 

[BV]

Use SE version (balanced is principially wrong!) with bal/unbal conversion module (balanced receiver) in front of SE power amp. In attachment is modified SE amp. Used are Cordell models (available here ). Download it and place in the same directory as .asc file. Try simulation (transient, FFT..)

 

[AndriyOL]

When the front end psu is powered directly without current limiter, the amp become more stable. It's only unstable at cold start