2026-04-13T07:31:21Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1338242026-01-27T02:10:03Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Repecho del Corral, Víctor author Biel Solé, Domingo author Olm Miras, Josep Maria author Fossas Colet, Enric author 2018-01-01 This paper presents the design of a hysteresis band controller to regulate the switching frequency in a sliding mode controlled nonlinear Boost power converter. The proposed architecture relies on a piecewise linear modeling of the switching function behavior within the hysteresis band, and consists of a continuous-time integral-type controller that modifies the amplitude of the hysteresis band of the comparator in accordance with the error between the desired and the actually measured switching period. The study provides the dynamical models of the converter operating in sliding mode and the switching frequency control loop. Moreover, the design of the parameters of both the sliding mode control and the switching frequency controller guarantee the fulfilment of the desired output voltage regulation of the Boost converter and the steady state setting of the switching frequency with a known, taylored dynamics. A Boost power converter prototype has been built to validate the proposal. Experimental results confirm the predicted good performance of the controllers, as well as the robustness with respect to changes in the switching frequency reference and the system parameters. Peer Reviewed Postprint (author's final draft) Àrees temàtiques de la UPC::Informàtica::Automàtica i control Sliding mode control DC-to-DC converters Convertidors continu-continu Robust sliding mode control of a DC/DC Boost converter with switching frequency regulation