Time-varying effects and averaging issues in models for current-mode control
Author(s)
Perreault, David J.; Verghese, George C.
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This paper investigates issues in modeling of current-mode control in converters. The effects of the current-sampling intrinsic to current-mode control are analyzed, and inadequately recognized limitations of linear time-invariant (LTI) models at high frequencies (where the system behavior is time-varying) are exposed. The paper also examines the geometric methods used to derive duty-ratio constraints in averaged models of current-mode control and points out the sources of discrepancies among various models. The conclusions are supported by simulation and experimental results.
Date issued
1997-05Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Laboratory for Electromagnetic and Electronic SystemsJournal
IEEE Transactions on Power Electronics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Perreault, D.J., and G.C. Verghese. “Time-Varying Effects and Averaging Issues in Models for Current-Mode Control.” IEEE Trans. Power Electron. 12, no. 3 (May 1997): 453–461. © 1997 IEEE
Version: Final published version
ISSN
08858993
1941-0107