Computation of characteristic coefficients of Cuk converterNiculescu, Elena; Cristea, Amelia-MariaBEC'98 : the 6th Biennial Conference on Electronics and Microsystems Technology, October 7-9, 1998, Tallinn, Estonia : proceedings1998 / p. 105-108: ill Equivalence of circuit models of dc-dc PWM convertersNiculescu, Elena; Vinatoru, M.BEC'98 : the 6th Biennial Conference on Electronics and Microsystems Technology, October 7-9, 1998, Tallinn, Estonia : proceedings1998 / p. 101-104: ill