Title :
Application of the ZVS-PWM commutation cell to a full-bridge DC-DC converter
Author :
Martins, Denizar Cruz ; Castaldo, Fernando C.
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. de Santa Catarina, Florianapolis, Brazil
fDate :
3/1/1999 12:00:00 AM
Abstract :
This paper presents the analysis and design procedures of a new DC-DC full bridge pulse-width modulation (PWM) converter, using the zero voltage switch (ZVS)-PWM commutation cell to achieve soft switching. Experimental results obtained from a laboratory prototype rated 1500 W are also presented. It is demonstrated that the inclusion of the auxiliary switches does not modify the PWM switching pattern. Bench tests on the prototype confirm that the proposed circuit exhibits high efficiency and behaves as a constant voltage source over an extended power output range
Keywords :
DC-DC power convertors; bridge circuits; commutation; nonlinear network analysis; nonlinear network synthesis; switching circuits; 1500 W; PWM converter; ZVS-PWM commutation cell; analysis procedure; auxiliary switches; constant voltage source; design procedure; extended power output range; full-bridge DC-DC converter; high efficiency; pulse-width modulation; soft switching; zero voltage switch; Bridge circuits; Circuit testing; DC-DC power converters; Laboratories; Prototypes; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Zero voltage switching;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
