A simple scheme for unity power-factor rectification for high frequency AC buses

1990 ◽  
Vol 5 (1) ◽  
pp. 77-87 ◽  
Author(s):  
V. Vorperian ◽  
R.B. Ridley
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Unity Power Factor ◽  
Simple Scheme ◽  
High Frequency Ac

scholarly journals Single Phase AC to DC Isolated ZETA Power Factor Correction Converter fed LED drives

2020 ◽  
pp. 73-80
Author(s):  
S. T. Siddharthan ◽  
Andrew Jones ◽  
S. Kathikeyan
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Single Phase ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Supply System ◽  
Unity Power Factor ◽  
Current Harmonic ◽  
High Frequency Transformer ◽  
Bridge Rectifier

This paper deals with PFC-isolated Zeta converter fed LED drive to overcome the power factor problems. The proposed circuit topology consists of diode bridge rectifier and isolated Zeta converter with high frequency transformer. A single –phase supply is used to feed a DBR followed by a filter to avoid any switching ripple in DBR and the supply system. An isolated Zeta converter is operated to work under DCM mode. This combination of DBR and PFC converter is used to feed a LED drive. This converter is simulated in MATLAB platform. This converter provides better results such as unity power factor and less current harmonic distortion.

High-Frequency-Fed Unity Power-Factor AC–DC Power Converter With One Switching Per Cycle

2015 ◽  
Vol 30 (4) ◽  
pp. 2148-2156 ◽  
Author(s):  
Chi-Kwan Lee ◽  
Sitthisak Kiratipongvoot ◽  
Siew-Chong Tan
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Power Converter ◽  
Unity Power Factor ◽  
Dc Power
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