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Title: Fractional Hold Circuits for the Design of Positive
Authors: Sen, M. de la
Bilbao-Guillerna, A.
Issue Date: 12-Mar-2007
Abstract: The appropriate use of fractional order holds ( b-FROH) of correcting gains b2 [-1,1] as an alternative to the classical zero and first order -holds (respectively, ZOH, FOH) is discussed related to the positive realness of the associate discrete transfer functions obtained from a given continuous transfer function. It is proved that the minimum direct input-output gain (i.e. the quotient of the leading coefficients of the numerator and denominator of the transfer function) needed for discrete positive realness may be reduced by the choice of b compared to that required for discretization via a ZOH.
Appears in Collections:2005 International Conference on Industrial Electronics and Control Applications (FIEE)

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