Stroboscopic maps for voltage-mode converters in the continuous conduction mode (CCM) are built up. The stability of one-periodic point is analyzed together with eigenvalues of Jacobian matrix of discrete-maps. The voltage-mode buck converter is taken as Stroboscopic maps for voltage-mode converters in the continuous conduction mode (CCM) are built up. The stability of one-periodic point is analyzed together with eigenvalues ​​of Jacobian matrix of discrete-maps. The voltage-mode buck converter is taken as