Title :
A complete normalized analysis of the current-fed series resonant DC/DC converter
Author :
Elbuluk, M.E. ; Chavez, M.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
A current-fed series resonant DC/DC converter is analyzed using a normalized third-order model. This model overcomes limitations of reduced second-order descriptions which do not include the effects of the output filter in the response of the circuit. The normalization procedure used simplifies the description of the converter as a function of basic parameters of the circuit, such as the switching-to-resonant frequency ratio and the normalized load parameter Q. A symbolic solution for the equations describing the converter is obtained and used to derive both large and small-signal sampled-data models. Sensitivities of the sampled state variables with respect to relative variations in the input current, switching-to-resonant frequency ratio, and Q are also obtained.<>
Keywords :
power convertors; current-fed series resonant DC/DC converter; normalized third-order model; output filter; switching-to-resonant frequency ratio; DC-DC power converters; Filters; Impedance; Inductors; RLC circuits; Resonance; Switches; Switching circuits; Switching frequency; Voltage;
Conference_Titel :
Industrial Electronics Society, 1989. IECON '89., 15th Annual Conference of IEEE
Conference_Location :
Philadelphia, PA, USA
DOI :
10.1109/IECON.1989.69607
