Results 211 to 220 of about 9,819,249 (244)

Triple loop modulation (TLM) for high reliability and efficiency in Power Factor Correction (PFC) system

2012 IEEE International Symposium on Circuits and Systems, 2012
The proposed triple loop modulation (TLM) can ensure reliability of the power factor correction (PFC) system due to the improvement of transient response. In conventional design, low bandwidth of less than 20 Hz that rejects ac source of 60/120 Hz coupling deteriorates system reliability in case of output load variation.
Jen-Chieh Tsai, Chia-Lung Ni, Chun-Yen Chen, Yi-Ting Chen, Chi-Lin Chen, Ke-Horng Chen   +5 more
openaire   +1 more source

Modeling and simulation of off-line boost power factor correction (PFC) circuits

2010 42nd Southeastern Symposium on System Theory (SSST 2010), 2010
Electric power is delivered most efficiently from utilities to end users when the load draws current at unity power factor. Traditional ac-to-dc power supplies that use a rectifier/filter topology, however, draw currents that are highly non-sinusoidal and rich in harmonics and thus display a low power factor.
David Beams, Sriram Boppana
openaire   +1 more source

Efficiency optimization for a power factor correction (PFC) rectifier with gallium nitride transistor

2015 IEEE 3rd Workshop on Wide Bandgap Power Devices and Applications (WiPDA), 2015
In this contribution, a 1 kW one phase power factor correction (PFC) rectifier with a Gallium Nitride (GaN) transistor is optimized considering switching frequency in regard to the losses of the PFC inductor. A driver circuit with negative voltage at switch-off supplied from a unipolar voltage supply is proposed.
Sven Bolte, Norbert Frohleke, Joachim Bocker   +2 more
openaire   +1 more source

Low cost power factor correction (PFC) converter using delay control

Proceedings of Power Conversion Conference - PCC '97, 2002
A low cost universal input voltage (90/spl sim/264 V) power factor correction (PFC) converter for a 200 W power supply in a personal computer (PC) is proposed. It consists of the PFC part followed by a DC-DC power converter as in a conventional two-stage scheme. However a single PWM controller is used as in a single-stage, single-switch PFC scheme. The
K.C. Lee, B.H. Cho
openaire   +1 more source

Three phase one switch modular-boost/vienna power factor corrected (PFC) rectifier

2017 IEEE International Conference on Industrial Technology (ICIT), 2017
The power conversion circuit of a three phase Vienna or Modular-Boost switching power factor corrected (PFC) rectifier uses three controlled switches, eighteen diodes and two output split capacitors. Three PFC controller circuits are necessary for conversion circuit's voltage regulation, power factor control and input current waveform improvement.
M. Nasir Uddin, Amina Hasan Abedin, Khandaker Lubaba Bashar, Samia Islam, M. A. Choudhury   +4 more
openaire   +1 more source

Studies of a novel AC-DC converter with three-phase power factor correction (PFC)

ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543), 2002
A novel three-phase major circuit topology is proposed in this paper and its circuit design is also given. Its characteristic is that specific PFC integrated circuit is not applied in this AC-DC converter, there are less circuit components and its power factor is very high.
null Fu Yinghong, null Li Xiaofan, null He Maojun   +2 more
openaire   +1 more source

Analysis of the interleaved type power factor correction (PFC) converter in discontinuous current mode

30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004, 2005
Power factor correction (PFC) technique is an important topic in the field of power electronics. This paper presents the analysis of the interleaved type PFC (Power Factor Correction) converter. The input current of this converter automatically follows the sinusoidal line voltage when the converter is operated in discontinuous current mode (DCM).
null Tae-Won Heo, null Young-Dac Son, E. Santi   +2 more
openaire   +1 more source

Integrated PFC and DC/DC stage for power factor correction and output voltage regulation

2016 International Conference on Computer, Electrical & Communication Engineering (ICCECE), 2016
An integrated PFC and DC/DC stage with reduced voltage stress across the switches is proposed for power factor correction and output voltage regulation. The paper aims to converter gives AC to DC rectification, input power factor correction and output voltage regulation that all will takes place into a single stage. The advantage of PFC and DC/DC stage
Md Shahazam, Abdul Latif, Subhajit Banerjee, B. K. Bhattacharyya   +3 more
openaire   +1 more source

Coupled inductor‐based buck power factor correction (PFC) converter with soft switching

International Journal of Circuit Theory and Applications
SummaryIn this study, couple inductor‐based buck power factor correction (PFC) converter is designed to mitigate dead zones of the converter. To minimize switching losses, all switches are controlled using a soft switching method, eliminating the need for snubber circuits.
Zafer Ortatepe, Ahmet Karaarslan, Hüseyin Akgül   +2 more
openaire   +3 more sources

Power factor correction by PFC boost topology using average current control method

2013 IEEE Global High Tech Congress on Electronics, 2013
Different power converters like ac-dc or dc-dc are widely used for their flexible output voltage and high conversion efficiency. Mostly these converters are used in various electronic devices and they are designed to regulate the output voltage even in the variation of load current and input voltage. Presently, there is increasing demands of high power
Khizir Mahmud, null Lei Tao
openaire   +1 more source