Title :
Design of a 5 kW high output voltage series-parallel resonant DC-DC converter
Author :
Cavalcante, Fabiana Da Silveira ; Kolar, Johann W.
Author_Institution :
Power Electron. Syst. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
This work presents a comprehensive procedure for designing a high output voltage series-parallel resonant DC-DC converter. The system output voltage control is by a combination of duty-cycle and switching frequency variation, where soft-switching is preserved over the entire operating range. The basic principle of operation of the converter is described and an analytical model is established which does provide a basis for the numerical calculation of the stresses on the power components. Furthermore, a control strategy for minimizing the no-load conduction losses is proposed and the transient behavior in case of load steps including output short-circuit is discussed based on digital simulations.
Keywords :
DC-DC power convertors; digital simulation; resonant power convertors; switching; voltage control; 5 kW; analytical model; digital simulations; duty-cycle; no-load conduction losses; numerical calculation; power component; soft-switching; stress; switching frequency; transient behavior; voltage control; voltage series-parallel resonant DC-DC converter design; Bridge circuits; DC-DC power converters; Diodes; Inductance; Leg; Parasitic capacitance; RLC circuits; Resonance; Stress; Voltage control;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1217728