Title :
Analysis of a step-down Cúk converter in continuous and discontinuous operating conditions
Author :
Chong, B.V.P. ; Zhang, Leiqi ; Dehghani, Abbas
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds
Abstract :
The small-signal transfer function model for a Cuk step-down converter, in continuous conduction mode, is presented. This leads to a non-minimum phase transfer function representing the output voltage response to perturbations of the switch duty ratio. The analysis of this circuit operating in discontinuous modes is described in detail and the non-linear relationships between input and output voltages are derived.
Keywords :
DC-DC power convertors; transfer functions; continuous conduction mode; discontinuous operating conditions; nonminimum phase transfer function; small-signal transfer function; step-down Cuk converter; Conduction Modes; Continuous and Discontinuous; Step-Down Cúk;
Conference_Titel :
Power Electronics, Machines and Drives, 2008. PEMD 2008. 4th IET Conference on
Conference_Location :
York
Print_ISBN :
978-0-86341-900-3
