A unified approach to teaching feedback in electronic circuits courses

A generalized negative feedback model is proposed as a vehicle for teaching feedback amplifiers in engineering schools. The model applies to both discrete and operational amplifier configurations and does not dictate the use of specific gain definitions (such as transconductance) for analyzing a given negative feedback amplifier. The main features of the suggested methodology and examples for quick evaluation of closed-loop gain, frequency response, and input and output impedances of negative feedback amplifiers are presented. The proposed method has been successfully tested in the class room over the past two years