Title :
Pulse regulation control technique for flyback converter
Author :
Ferdowsi, Mehdi ; Emadi, Ali ; Telefus, Mark ; Davis, Curtis
Author_Institution :
Power Electron. & Motor Drives Lab., Univ. of Missouri-Rolla, Rolla, MO, USA
fDate :
7/1/2005 12:00:00 AM
Abstract :
Pulse regulation, a fixed frequency control technique, is introduced and applied to flyback converter operating in discontinuous conduction mode (DCM). The control parameters are designed in a way that the converter operates as close as possible to the critical conduction mode. In contrast to the conventional pulsewidth modulation control scheme, the principal idea of pulse regulation is to achieve output voltage regulation using high and low-power pulses. Pulse regulation is simple, cost effective, and enjoys a fast dynamic response. The proposed technique is applicable to any converter operating in DCM. However, this work mainly focuses on flyback topology. In this paper, the main mathematical concept of the new control algorithm is introduced and simulations as well as experimental results are presented.
Keywords :
PWM power convertors; frequency control; network topology; pulse circuits; voltage control; discontinuous conduction mode; flyback converter; flyback topology; frequency control technique; low-power pulses; pulse regulation control technique; pulsewidth modulation control scheme; Costs; Power electronics; Pulse modulation; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Switched-mode power supply; Switches; Switching converters; Voltage control; Critical conduction mode (CCM); dc–dc power converters; discontinuous conduction mode (DCM); flyback converter; switch mode power supplies;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2005.850922