Anticausal Analysis of Feedback Amplifiers

Waldhauer, F.D.

doi:10.1002/j.1538-7305.1977.tb00567.x

Cited by 10 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several models have been developed in the past [1,[3][4][5][6][7][8][9][10][11][12][13]. Although none of them fully complies with the aforementioned requirements, the asymptotic-gain model, which will be discussed here, is of particular interest as it matches Eq.…”

Section: Asymptotic-gain Modelmentioning

confidence: 99%

Synthesis‐oriented double‐loop feedback model

Hartingsveldt¹,

Verhoeven

Roermund

2017

Circuit Theory & Apps

View full text Add to dashboard Cite

SUMMARYThis paper presents a new feedback model that focuses on the synthesis rather than the analysis of feedback amplifiers. First, a single-loop synthesis-oriented feedback model is developed that enables the full synthesis of such amplifiers in a hierarchical and systematic way. This model is subsequently extended to a double-loop synthesis model, so that also feedback amplifiers with a characteristic input or output impedance-employing two feedback loops-can be synthesized through the same systematic approach. That these new models are suitable for synthesis lies in the fact that they map directly to the circuit level, such that the intended, asymptotic behavior as well as the various individual contributors to the deviation from this intended behavior, like finite loop gain, non-ideal input and output impedances of the forward gain block, direct feed-through and attenuations outside the feedback loop(s), are clearly distinguished and can be assigned to the responsible sections of the network. For this purpose, the double-loop synthesis model makes the transfers of the two feedback networks explicitly visible, so that it gives immediate insight in how to design these networks to get the required signal transfer and characteristic impedance.

show abstract

Section: Asymptotic-gain Modelmentioning

confidence: 99%

Synthesis‐oriented double‐loop feedback model

Hartingsveldt¹,

Verhoeven

Roermund

2017

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…The negative feedback theory [1][2][3][4][5][6][7] is original developed in the communication field. Once developed, the negative feedback theory is widely used in other fields such as: integrated circuit (IC), aircraft, vessel, and so on.…”

Section: Introductionmentioning

confidence: 99%

Use the Negative Feedback Theory in IC Design

Hu¹,

Zhang

2013

AMR

View full text Add to dashboard Cite

In this paper, at first, a conceptual circuit is introduced to illuminate how to use negative feedback to set up operating points. After that, a bias circuit is design using negative feedback theory. The stimulated results show that the designed bias circuit are very stable, having a phase margin of 93.04 degrees , and that the output impedance of the bias circuits has a low pass nature with a DC value of about 5 ohms.

show abstract