Input Small-Signal Characteristics of Selected DC–DC Switching Converters

Energies

Włodzimierz Janke¹  Jarosław Kraśniewski¹  Marcin Walczak¹  Maciej Bączek¹ 

[1] Faculty of Electronics and Computer Science, Koszalin University of Technology, Sniadeckich 2, 75-453 Koszalin, Poland;

关键词: input small-signal characteristics;    switch-mode converter: flyback;    buck and boost converters;    continuous conduction mode (CCM);    discontinuous conduction mode (DCM);    separation of variables;   

DOI  :  10.3390/en15051924

来源: DOAJ

【 摘 要 】

The main goal of this study was to derive small-signal models of the input characteristics of buck, boost, and flyback converters working in continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The models presented in the paper were derived using the separation of variables approach and included the parasitic resistances of all converter components. The paper features a discussion about the limitations of the model accuracy. The presented characteristics were obtained by calculation and verified by measurements. The input characteristics of converters are essential in the design of converters used in Power Factor Correction systems as well as in maximum power point tracking systems (MPPT).

【 授权许可】

Unknown