<Dl> <Dd> "Positive feed - back increases the gain of the amplifier, negative feed - back reduces it ." </Dd> </Dl> <Dd> "Positive feed - back increases the gain of the amplifier, negative feed - back reduces it ." </Dd> <P> According to Mindell (2002) confusion in the terms arose shortly after this: </P> <Dl> <Dd> <Dl> <Dd> "...Friis and Jensen had made the same distinction Black used between' positive feed - back' and' negative feed - back', based not on the sign of the feedback itself but rather on its effect on the amplifier's gain . In contrast, Nyquist and Bode, when they built on Black's work, referred to negative feedback as that with the sign reversed . Black had trouble convincing others of the utility of his invention in part because confusion existed over basic matters of definition ." </Dd> </Dl> </Dd> </Dl>

What is a positive feedback mechanism in the body