Small-signal transmittances of DC-DC step-down PWM converter in various operation modes

Archives of Electrical Engineering

Włodzimierz Janke¹ 

关键词: step-down converter;    BUCK;    CCM;    DCM;    averaged model;    small-signal transmittance;    switch-averaging;    separation of variables;   

DOI  :  10.2478/aee-2015-0038

来源: Versita

【 摘 要 】

Small-signal transmittances: input-to-output and control-to-output of BUCK converter power stage working in CCM or DCM mode are discussed. Ideal converter case and converter with parasitic resistances are considered separately. Derivations of small-signal transmittances, based on different approaches to finding the converter averaged models, are presented and the results are compared. Apart from theoretical considerations, some results of numerical calculations are presented.

【 授权许可】

Unknown