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Title: A novel tri-state boost converter with fast dynamics
Authors: Viswanathan, K. 
Oruganti, R. 
Srinivasan, D. 
Keywords: Boost converter
Dc-dc converter
Right-half-plane zero
Small-signal analysis
Tri-state boost converter
Issue Date: Sep-2002
Source: Viswanathan, K., Oruganti, R., Srinivasan, D. (2002-09). A novel tri-state boost converter with fast dynamics. IEEE Transactions on Power Electronics 17 (5) : 677-683. ScholarBank@NUS Repository.
Abstract: A challenging problem in the design of boost converters operating in continuous-conduction mode is posed by the dynamically shifting right-half-plane (RHP) zero in the converter's small-signal control-to-output transfer function. The paper proposes a novel tri-state boost converter without such a zero in the transfer function. The additional degree of freedom introduced in the converter in the form of a freewheeling interval has been exploited through an easy control technique to achieve this elimination. The absence of the RHP zero allows the control scheme to achieve larger bandwidth under closed-loop conditions, resulting in fast response. Analytical, simulation and experimental results of the tri-state boost converter have been presented and compared with those of the classical boost converter both under open-loop and under closed-loop operating conditions. The results clearly demonstrate the superior dynamic performance of the proposed converter. The proposed converter can be used in applications wherever fast-response boost action is needed.
Source Title: IEEE Transactions on Power Electronics
ISSN: 08858993
DOI: 10.1109/TPEL.2002.802197
Appears in Collections:Staff Publications

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