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Designing control loop for DC-to-DC converters loaded with unknown AC dynamics

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5 Author(s)
Byungcho Choi ; Sch. of Electron. & Electr. Eng., Kyungpook Nat. Univ., Taegu, South Korea ; Jaeyeol Kim ; B. H. Cho ; Seungwon Choi
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This paper presents a method for designing the control loop for DC-to-DC power converters when uncertainties exist in the AC characteristics of the converter's load. In the proposed method, a converter is initially considered as a stand-alone module feeding a current sink load and the control loop of the converter is then designed in a way that maximizes the robustness of the converter's closed-loop performance against the unknown AC dynamics of a potential load. As a result, the proposed control design method can provide the predictable closed-loop performance for a converter when it is loaded with an actual load whose AC characteristics are unknown in advance.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:49 ,  Issue: 4 )