Title :
Control of buck quasi-resonant converter with delayed PWM scheme
Author :
Taborda, John Alexander ; Prado Fajardo, Patricia ; Florez Montes, Frank
Author_Institution :
Fac. de Ing., Univ. del Magdalena, Santa Marta, Colombia
Abstract :
A buck pulse-width modulated zero-current switching quasi-resonant converter operating at constant frequency is discussed. The converter is modeled using the piecewise-linear approach in order to formulate more compact and more exact expressions. The digital-PWM controller is based on the FPIC technique (or Fixed-Point Inducting Control), that it was proposed, recently. This technique has been only reported in hard-switching converters. The properties of FPIC in softswitching topology are investigated. Real-time and delayed performances are shown.
Keywords :
PWM power convertors; piecewise linear techniques; resonant power convertors; zero current switching; FPIC technique; PWM scheme; buck pulse-width modulated zero-current switching; buck quasiresonant converter control; digital-PWM controller; fixed-point inducting control; hard-switching converters; piecewise-linear approach; softswitching topology; Capacitors; Delays; Mathematical model; Pulse width modulation; Switches; Transient response; Zero current switching; Quasi-resonant converters; delayed control; digital pulse-width modulation; piecewise-linear systems; soft-switching;
Conference_Titel :
Power Electronics and Power Quality Applications (PEPQA), 2015 IEEE Workshop on
Conference_Location :
Bogota
DOI :
10.1109/PEPQA.2015.7168232
