Information about the AGC positive loop gain design

[wanneng]

Can some one give me the information about the agc positive loop gain design?

 

[flatulent]

more specifics

You need to be more detailed. Where did you learn of this, how is it different from ordinary AGC?

Are you talking about a dynamic range expander?

 

[wanneng]

Yes!I am design a circuit to control the output signa.I want to make the output a fixed value with the dynamic input. the circuit is used in the audio amplifier circuit!

 

[flatulent]

previous discussion

**broken link removed** is a previous discussion on the general topic of AGC. The material can be applied to your situation.

Take special notice of the delayed method in the topic. Usually you do not want to make the gain change range so high that the amplifier hiss comes out when there is no program material.

 

[wanneng]

3X!I konw！

 

[Wowee]

Re: Agc circuit design

There is a paper about AGC.

 

[andy2000a]

Re: Agc circuit design

as I know , some AGC circuit use GM_bank control ..

and some circuit use "diff_pair " and reference many input signal
by "resistor attentuar" and summary these diff_pair
for linear phase design

 

[andy2000a]

Re: Agc circuit design

look here

**broken link removed**

 

[karapopolu]

Agc circuit design

thanks for the paper Wowee