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How to get the positive loop gain and negative loop gain in Bandgap circuit ?

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Kim Soo Hwan

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How to get the positive loop gain and negative loop gain in Bandgap circuit ?

I tried to use the AC method using large RC and
lstb sentence, but both failed.

Conventional_BGR.png

With the above circuit, how can I get the loop gain of positive and negative ?
 

Do you mean the gain for positive and negative voltages? Use a dual-rail power supply say -5V +5V.
 

No, I mean positive loop gain and
negative loop gain depicted in the picture.
Thank for concerning.
 

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