TY - JOUR N2 - In the description of small-signal transmittances of switch-mode power converters several characteristic frequencies are usually used, corresponding to poles and zeros of transmittances. The knowledge of these frequencies is important in the design of control circuits for converters and usually are assumed to be constant for a given power stage of a converter. The aim of the paper is to evaluate the influence of converter primary parameters and load conductance on characteristic frequencies. Analytical derivations and numerical calculations are performed for an ideal and non-ideal BUCK converter working in continuous or discontinuous conduction mode. L1 - http://www.czasopisma.pan.pl/Content/102168/PDF/DOI%2010.1515aee-2016-0049.pdf L2 - http://www.czasopisma.pan.pl/Content/102168 PY - 2016 IS - No 4 December EP - 717 DO - 10.1515/aee-2016-0049 KW - switch mode DC-DC converter KW - step-down converter KW - BUCK power converter KW - small-signal transmittances KW - sharacteristic frequencies A1 - Janke, Włodzimierz PB - Polish Academy of Sciences VL - vol. 65 DA - 2016 T1 - Characteristic frequencies in averaged description of step-down (BUCK) DC-DC power converter SP - 703 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/102168 T2 - Archives of Electrical Engineering ER -