nano_RF
Community Member
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Posts: 50
madison
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Hi All,
If amplifier is employed in negative feedback fashion then i wonder if you can achieve the soft-limiting by simply changing the feedback ratio.
Basically have another (resistor plus active device combo in series) in parallel to the main feedback resistor. For the duration where gain compression is not desired the bias level of active device is kept below the threshold, and during the soft limit it is gradually turned on (bias is directly related to the output voltage) and basically allowing the second resistor to be in parallel with the main feedback resistor and the gain is reduced so-forth.
However, this will have some threshold variation.
Regards
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