Stability Analysis of a Buck Regulator Employing Input Filter Compensation
- 1 January 1984
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. AES-20 (1) , 67-77
- https://doi.org/10.1109/TAES.1984.310494
Abstract
The interaction between the input filter and the regulator often causes serious degradation of performance. The reduction in loop gain due to input filter interaction can result in system instability. An exact stability analysis of the buck regulator system is presented. The input filter parameter values are varied and system instability is predicted for the case without feedforward. The eigenvalues of the system can be brought back into the unit circle and the system thus stabilized with the addition of the feedforward loop. Measurements made for the cases with and without feedforward confirm the analytical prediction.Keywords
This publication has 3 references indexed in Scilit:
- A novel input filter compensation scheme for switching regulatorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1982
- Input-Filter Design for Switching RegulatorsIEEE Transactions on Aerospace and Electronic Systems, 1979
- Generalized Computer-Aided Discrete Time-Domain Modeling and Analysis of DC-DC ConvertersIEEE Transactions on Industrial Electronics and Control Instrumentation, 1979