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 82
- Downloads 0
[b][/b] A RECONFIGURABLE SMART SENSOR INTERFACE FOR WEATHER MONITORING WITH IOT ENVIRONMENT
Internet of things (IoT) is a network of devices with local intelligence (sensors, lights, gas pumps), which share access & control mechanisms to push and pull status and command information from the netwo...
DETECTION OF COMPUTER VIRUSES USING WELM_ FGA_ FBFO
Computer viruses are big threat for our society .The expansion of various new viruses of varying forms make the prevention quite tuf f .Here we proposed WELM_FGA_ FBFO to detect computer viruses. The proposed method...
FLEXURAL STRENGTH OF TWO-WAY RC SLABS RETROFITTED WITH BASALT FIBER REINFORCED POLYMER (BFRP)
Many older structures are in the need of strengthening the existing civil engineered infrastructure. The reasons are deterioration by ageing or corrosion caused by environmental factors, increase in the load b...
AN OVERVIEW OF EFFECT OF ELECTRO HYDRODYNAMIC ON PERFORMANCE OF REFRIGERATION SYSTEM WITH R-134A.
Heat transfer enhancement in refrigeration system is reviewed in this paper. Which explain EHD effect given and experimental results obtained are discussed. R-134a is common refrigerant for many application now so...
A Review on Different Models for Heat Transfer Assessment in Hydrocarbons Fires
Since the beginning of industrial revolution, accidents caused by the hydrocarbons are increased significantly. In order to reduce the accidents and unintentional events, this project considers heat transfer asse...