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.


Electrical and Computer Engineering

Keywords and Phrases

Critical Conduction Mode (CCM); PWM Power Convertors; DC Power Converters; DC– Discontinuous Conduction Mode (DCM); Flyback Converter; Flyback Topology; Frequency Control; Frequency Control Technique; Low-Power Pulses; Network Topology; Pulse Circuits; Pulse Regulation Control Technique; Pulsewidth Modulation Control Scheme; Switch Mode Power Supplies; Voltage Control; DC-DC Power Converters

International Standard Serial Number (ISSN)

0885-8993; 1941-0107

Document Type

Article - Journal

Document Version

Final Version

File Type





© 2005 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jul 2005