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Dc-dc Zeta converter is a buck-boost type of converter, which yields dc output voltage with same polarity that of the input voltage. It is widely used in various domestic and industrial applications. For good voltage regulation, fast dynamic response, and stable operation of this converter, a feedback control design is necessary. Therefore, in this paper, the duty cycle to output voltage small-signal...
In paper (IEEE Trans. Power Electron., vol. 22, no. 1, pp. 69–79, Jan. 2007), large signal and small signal transfer function models of dc–dc power converters are obtained using concept of energy factor (EF) and its associated parameters. In sections II-D and II-E of the original paper, authors describe that the two key parameters of the transfer function are independent of conduction duty cycle ...
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