Internal parameter "strain" analysis in negative feedback amplification circuit
Zhuan Ping · Electronic Design Engineering · 2010
For the negative feedback circuit within the parameters of input and output resistance of the calculation method,the classical formula fails to reflect the external signal source and load parameters.By feedback control based on model and circuit theory theorem,after a mathematical proof,the author got a new set of formulas.The new formula includes the classic formula exists,and uses it as a special case outside the parameters constant,discussion of the compatibility between the two is further proof of the correctness of the new formula.Analysis conclusions indicate that: the external parameter of negative feedback circuit changes within the parameters that directly affect their expression and thus enhance the adjustment function of the circuit.Authors conclude that these new features found in the general feedback system should be the common property.