A Novel Feedforward Compensation Canceling Input Filter-Regulator I nteraction

A Novel Feedforward Compensation Canceling Input Filter-Regulator I nteraction

The interaction between the input filter and the control loop of switching regulators often results in detrimental effects, such as loop instability, degradation of transient response, and audiosusceptibility, etc. The concept of pole-zero cancellation is employed to mitigate some of these detriment...

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Veröffentlicht in:IEEE transactions on aerospace and electronic systems 1983-03, Vol.AES-19 (2), p.258-268
Hauptverfasser: Kelkar, S.S., Lee, F.c.
Format: Artikel
Sprache:eng
Schlagworte:
Degradation
Feedback loop
Filters
Impedance
Regulators
Resonant frequency
Stability
Steady-state
Transient response
Voltage
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Beschreibung
Zusammenfassung:The interaction between the input filter and the control loop of switching regulators often results in detrimental effects, such as loop instability, degradation of transient response, and audiosusceptibility, etc. The concept of pole-zero cancellation is employed to mitigate some of these detrimental effects and is implemented using a novel feedforward loop, in addition to existing feedback loops of a buck regulator. Experimental results are presented which show excellent correlation with theory.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.1983.309445