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The power/signal synchronous transmission between converters has attracted much attention since no extra independent signal transmitting equipment is required. In this paper, bifurcation behaviors of a cascaded two-stage Buck-Boost converter are discussed by simplifying the second stage boost converter as constant power load. The amplitude variation of the bus voltage caused by bifurcation is used...
Pulse train (PT) controlled switching DC/DC converters possess advantages of simple structure, fast dynamic response, good robustness etc. but also accompanied by undesirable low-frequency oscillation phenomenon when the converters are operated in continuous conduction mode (CCM). To mitigate the low-frequency oscillations of PT controlled buck converters, a novel buck converter with coupled inductor...
In order to minimize the output low-frequency oscillation of pulse train (PT) controlled buck converters operated in continuous current mode (CCM), a modified Buck converter by using coupled inductors is newly proposed in this paper. The discrete-time model and the low-frequency oscillation mechanism of this new converter are analyzed in details, and the corresponding solution method was given for...
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