brahma
Advanced Member level 4
feedback...
i started studying negative feedback in opamp, there it is given negative feedback increases stability of the amplifier and also given β*a > 1, where a is the openloop gain, then in positive feedback by nyquist criteria β*a <=1, if this condition is not statisfied then the system is unstable. i dont understand this, anybody could make me clear...
i started studying negative feedback in opamp, there it is given negative feedback increases stability of the amplifier and also given β*a > 1, where a is the openloop gain, then in positive feedback by nyquist criteria β*a <=1, if this condition is not statisfied then the system is unstable. i dont understand this, anybody could make me clear...