2007/04/01 by Arnaldo D’Amico, Christian Falconi, Gianluca Giustolisi +1 · 7 citations
Engineering · Mathematics · #Analog and Mixed-Signal Circuit Design #Radio Frequency Integrated Circuit Design #Advancements in Semiconductor Devices and Circuit Design #Amplifier #Ideal (ethics) #Representation (politics) #Generalization #Negative feedback amplifier #Infinity #Computation #Control theory (sociology) #Feedback loop #Computer science #Mathematics #Operational amplifier #Algorithm #Mathematical analysis #Telecommunications #Artificial intelligence #Bandwidth (computing)
paper · doi:10.1109/tcsii.2006.889713
published in IEEE Transactions on Circuits and Systems II Analog and Digital Signal Processing 54(4), 298-302 (Institute of Electrical and Electronics Engineers)
openalex publication_date 2007/04/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
We propose a representation and a related methodology for evaluating the exact input and output resistances of feedback amplifiers. Our approach is based on the generalization of the Rosenstark theorem. Indeed, it requires the computation of two resistances (direct and asymptotic) each one evaluated in one of the two ideal and extreme conditions of the return ratio (zero or infinity). Due to these characteristics, the representation allows one to understand what happens to a feedback amplifier resistance in the case of absence of feedback or in the ideal case of infinite feedback