This is just me having too much fun with TINA-TI simulator 🙂
I don't know if it will work in the real world (might build it just to tinker around)
In the schematics I am using LM4562 and LM3886 as composite amplifier. That usage probably has problems since I don't know much about composite amplifiers.
What I am curious about is that LM4562 OPAMP used not only as a part of a composite amplifier, but also as a differential amplifier for balanced input signals from the previous stage.
Any comments are appreciated!
Attached is the simulation file and screenshots for frequency and phase response.
PS: I am aware that @tomchr has built excellent composite amps and I am considering building one of those in the future. But for now I am just having fun tinkering with the design concepts...
I don't know if it will work in the real world (might build it just to tinker around)
In the schematics I am using LM4562 and LM3886 as composite amplifier. That usage probably has problems since I don't know much about composite amplifiers.
What I am curious about is that LM4562 OPAMP used not only as a part of a composite amplifier, but also as a differential amplifier for balanced input signals from the previous stage.
Any comments are appreciated!
Attached is the simulation file and screenshots for frequency and phase response.
PS: I am aware that @tomchr has built excellent composite amps and I am considering building one of those in the future. But for now I am just having fun tinkering with the design concepts...
Attachments
Last edited:
I think it will be better to set the gain for LM3886 to min advised of 10 by replacing feedback resistor R1 to 9.1K
No, no not like that but conceptually. If I'm guessing correctly, you seem to be showing closed loop gain and phase.
Yes, closed loop. I looked up TI videos on stability and they show how to simulate open loop gain. Very informative.