A study on linear single-loop feedback systems using geometric vectors
- Resource Type
- Conference
- Authors
- Zhang, Qinfeng; Huang, Fengyi
- Source
- 2014 IEEE International Symposium on Circuits and Systems (ISCAS) Circuits and Systems (ISCAS), 2014 IEEE International Symposium on. :69-72 Jun, 2014
- Subject
- Bioengineering
Components, Circuits, Devices and Systems
Computing and Processing
Signal Processing and Analysis
Vectors
Negative feedback
Equations
Mathematical model
Bandwidth
Transfer functions
Educational institutions
Feedback control theory
linear network theory
vector
positive feedback
circuit analysis
- Language
- ISSN
- 0271-4302
2158-1525
An analysis method based on vector triangle and vector locus is introduced in this paper. By using vector triangles, a set of quantities generally used in feedback theory can be intuitively visualized, which is impossible by using other theories. The vector locus records the evolvement of the vector triangle versus frequency in polar coordinates, and combines the magnitude and phase plot together in one track. Examples are given to show that the proposed method gives intuitive insights while still retains a general method to characterize feedback systems.