ECEN5807, Spring 2009 Lecture 8 1.How the correction factor changes a transfer function 2.SEPIC example: the correction factor at low, intermediate, and high frequencies 3.Damping the glitch

ECEN5807, Spring 2009 EET: How the correction factor modifies the transfer function

ECEN5807, Spring 2009 Numerator of the correction factor Numerator of correction factor (1 + Z N /Z): Magnitude (top plot) Phase (bottom plot) Goes to zero (undamped resonant zeroes) when Z = -Z N

ECEN5807, Spring 2009 Denominator of correction factor Denominator of correction factor (1 + Z D /Z): Magnitude (top plot) Phase (bottom plot) Singularity (undamped resonant poles) when Z = -Z D

ECEN5807, Spring 2009 SEPIC example Model for finding G vd (s)