Author
Kavcı, Mustafa, Tekin, Ahmet, Tarhan, C.
Publication Date
2019
Publication Place
-
IEEE
Subject
Power factor correction, Total harmonic distortion, Critical conduction mode flyback converter
Type
Document
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-1-7281-2788-0
Record ID
13740b17-5f6f-4a58-888d-8e029b119499
Library Location
Electrical & Electronics Engineering
Date
2019
Sample Text
In many of today's solid-state lighting applications, Critical Conduction Mode (CCM) Flyback PFC converter is a popular solution due to its limited component count and simple structure with respect to other SMPS topologies. As described in international standards documents (IEC/EN 61000-3-2), drivers are required to demonstrate a power factor results greater than 0.9 and lower THD for power levels above 25W. Due to non-sinusoidal input current waveform of the traditional constant-on-time control method, achieving improved PF and THD is quite difficult. In this paper, a new control method is introduced in an effort to improve power factor and total harmonic distortion of Voltage Mode CRM Flyback PFC Converter. The work proposes injection of a compensating sin(ωt) signal component in the feedback path utilizing an additional primary transformer winding to linearize the current from the source. The detailed theoretical analysis is presented along with measurement results of a 30W high-power system prototype.
DOI
10.1109/MWSCAS.2019.8885187
