Title :
A precise large signal model for a flyback converter in critical conduction mode
Author :
Rahimi, Amir M. ; Alavi, M.H. ; Zolghadri, M.R.
Author_Institution :
SAM Electron., Tehran, Iran
Abstract :
Operation in critical conduction mode of flyback converters has many advantages over constant frequency PWM. In this paper, this operation is briefly examined and a precise large signal model for the converter is proposed and verified. The model shows an almost linear behavior in a large range of feedback voltage. Therefore a classical Laplace analysis can be performed. There is an excellent agreement among the results obtained from large signal SIMULINK simulation, Pspice simulation and experiment.
Keywords :
DC-DC power convertors; feedback; transfer functions; DC/DC flyback converter; Laplace analysis; Pspice simulation; converter flyback; critical conduction mode; feedback voltage; flyback converter; large signal SIMULINK simulation; large signal model; linear behavior; transfer function; Capacitors; Circuits; Feedback; Frequency conversion; Inductance; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Voltage;
Conference_Titel :
Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on
Print_ISBN :
0-7803-7233-6
DOI :
10.1109/PEDS.2001.975437
