Stats

Locked Locked
Replies 2
Subscribers 63
Views 16466
Members are here 0

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

open loop closed loop link via STB loop gain

Hello, I have built and amplifier which acts exactly like in the open loop behavior where the gain reduces as the bandwidth increases by the LOOP GAIN factor.(As shown bellow)

However when i calculated the LOOP GAIN i should have OPENLOOP=CLOSED_LOOP+Loop_gain.

Then i remmembered what Andrew said that by removing the loop we change the conditions .

Is there a way in STB to plot OPEN LOOP GAIN and Closed Loop Gain?

So in the same situation i will get OPENLOOP=CLOSED_LOOP+Loop_gain.

Thanks.

Parents

Andrew Beckett over 5 years ago

I have no idea what you mean by closed loop gain and open loop gain. The loop gain is the loop gain; if the loop was open, it wouldn't be loop gain any more. Stability analysis measures the loop gain - that's it.

I don't know what you're trying to do here as it doesn't make sense (again).
Cancel
Vote Up 0 Vote Down

Cancel
robert 21 over 5 years ago in reply to Andrew Beckett

i understand.
Thank you very much.
Cancel
Vote Up 0 Vote Down

Cancel

Reply

robert 21 over 5 years ago in reply to Andrew Beckett

i understand.
Thank you very much.
Cancel
Vote Up 0 Vote Down

Cancel

Children

No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.