INTEGRATED BUCK–FLYBACK NON ISOLATED PFC CONVERTER WITH CONSTANT ON-TIME CONTROL
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 0, Vol 4, Issue 10
Abstract
An integrated buck–flyback non isolated power factor correction converter is proposed in this paper. This new converter is an inherent integration of a buck converter and a flyback converter, which operates in either flyback mode or buck mode according to whether the input voltage is lower or higher than the output voltage. In this way, the dead zones of ac input current in traditional buck power factor correction converter can be eliminated. Therefore, the proposed integrated buck–flyback power factor correction converter can achieve high power factor under universal ac input range, and its input current harmonics can be reduced. Conventional Buck power factor correction converter and proposed converter are simulated using MATLAB/Simulink. A 10W laboratory prototype of the proposed power factor correction converter with 12V input voltage was setup using PIC 16F877 microcontroller. Compared to conventional power factor correction converters, the power factor was improved greatly with the proposed topology especially at low line. This proposed topology is very suitable for high-power non isolated LED drivers with high power factor requirements.
Authors and Affiliations
Sumy P S
Keywords
Related Articles
- EP ID EP90144
- DOI -
- Views 93
- Downloads 0
Reversible Logic Based Arithmetic and Logic Unit
Reversible logic has received great attention in the recent years due to its ability to reduce the power dissipation which is the main requirement in low power digital design. It has wide applications in advanced...
DESIGN OF LOW-POWER FULL ADDER IN 0.18 µm CMOS TECHNOLOGY
With the increase in device integration level and the growth in complexity of Integrated circuits, small delay and low power dissipation become important parameters as these increases performance and portabili...
ANDROID & WEB BASED ONLINE EXAM MANAGEMENT
The project of Android & Web based Online exam management system is implemented as Web application. This is use to conduct exam, schedule time and determining result automatically and display it. It overcomes the d...
INFLUENCE OF CHITOSAN ON THE SURFACE MORPHOLOGY OF TITANIUM DIOXIDE NANO PARTICLES
Nanotechnology offers potential benefits to almost all industries and products. Titanium oxide (TiO2) nanoparticles exhibit unique physical and chemical properties which makes Titanium oxide suitable for various a...
THE ROLE OF ISLAMIC FAMILY THERAPY ON THE QUALITY OF THE COUPLE RELATIONSHIP IN IRAN
In recent years many methods offering for family therapy especially for couple relationships. But in some country like Iran because of Islamic matters there are some problems for application these new family therapy meth...