scholarly journals An Improved Power Factor Correction with Control of Leakage Inductance

2020 ◽  
Vol 6 (10) ◽  
pp. 12-19
Author(s):  
V Divyasri Sudharani and K Sabarinath
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Control Method ◽  
Electronic Device ◽  
Power Factor Correction ◽  
Input Voltage ◽  
Voltage Regulation ◽  
Modern World ◽  
Leakage Inductance ◽  
Line Current

Nowadays the use of electronic equipment finds a progressive development in the modern world. Hence it becomes a mandate to check whether the harmonic content of line current of any electronic device which is connected to the ac supply meets the appropriate standards. This demand is satisfied by implementing the Power Factor Correction (PFC) circuit in order to make the input current to be in sinusoidal in nature and in-phase with the input voltage. Numerous solutions are available to make the line current almost sinusoidal. This paper describes an isolated power factor corrected power supply that utilizes the leakage inductance of the isolation transformer to provide boost inductor functionality. The bulk capacitor is in the isolated part of the power supply allowing for controlled startup without dedicated surge limiting components. A control method based on switch timing and input/output voltage measurements is developed to jointly achieve voltage regulation and input power factor control.

scholarly journals An Active Power Factor Corrected Power Supply fed Induction Motor Drive by Controlling the Leakage Inductance for Transformer with Soft Switching Strategy

2021 ◽  
Vol 7 (03) ◽  
pp. 107-114
Author(s):  
Jagata Kotasatyavathi and Guduru Ravi Kumar
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Control Method ◽  
Electronic Device ◽  
Input Voltage ◽  
Voltage Regulation ◽  
Input Power ◽  
Modern World ◽  
Leakage Inductance ◽  
Line Current

Nowadays the use of electronic equipment finds a progressive development in the modern world. Hence it becomes a mandate to check whether the harmonic content of line current of any electronic device which is connected to the ac supply meets the appropriate standards. This demand is satisfied by implementing the Power Factor Correction (PFC) circuit in order to make the input current to be in sinusoidal in nature and in-phase with the input voltage. Numerous solutions are available to make the line current almost sinusoidal. This paper describes an isolated power factor corrected power supply that utilizes the leakage inductance of the isolation transformer to provide boost inductor functionality. The bulk capacitor is in the isolated part of the power supply allowing for controlled startup without dedicated surge limiting components. A control method based on switch timing and input/output voltage measurements is developed to jointly achieve voltage regulation and input power factor control.

scholarly journals An Improved Power Factor Correction for Interleaved Flyback Switched Mode Power Supply

2018 ◽  
Vol 7 (3.27) ◽  
pp. 166
Author(s):  
K Sasikala ◽  
R Krishna Kumar
Keyword(s):  
Power Factor ◽  
Electronic Device ◽  
Power Factor Correction ◽  
Input Voltage ◽  
Modern World ◽  
Line Current ◽  
Progressive Development ◽  
Harmonic Content ◽  
Switched Mode Power Supply ◽  
Current Ripple

Nowadays the use of electronic equipment finds a progressive development in the modern world. Hence it becomes a mandate to check whether the harmonic content of line current of any electronic device which is connected to the ac supply meets the appropriate standards. This demand is satisfied by implementing the Power Factor Correction (PFC) circuit in order to make the input current to be in sinusoidal in nature and in-phase with the input voltage. Numerous solutions are available to make the line current almost sinusoidal. This paper deals with the inclusion of passive PFC in the interleaved Fly back SMPS to improve the power factor. The proposed work also examines the reduction of current ripple at the output using interleaved converter.  

Correction Technology and Development on Active Power Factor

2012 ◽  
Vol 424-425 ◽  
pp. 941-944
Author(s):  
Xue Mei Hu ◽  
Guo Tong Zhang
Keyword(s):  
Basic Principle ◽  
Power Factor ◽  
Power Supply ◽  
Control Method ◽  
Power Factor Correction ◽  
Development Trend ◽  
Active Power ◽  
Dc Power ◽  
Power Supply Circuit ◽  
The Development Trend

Correction Technology on active power factor is now widely used in AC-DC power supply circuit to eliminate harmonic of power system, to improve the power factor. Firstly the method of power factor correction technology is set out. Secondly, the basic principle of active power factor correction technology is analyzed, then the control method for active power factor correction technology is given. Finally the development trend of active power factor correction technology is analyzed.

SINGLE-STAGE SINGLE-SWITCHED RECTIFIER/REGULATOR WITH MAGNETIC COUPLED NONDISSIPATIVE SNUBBER

2004 ◽  
Vol 13 (03) ◽  
pp. 557-576
Author(s):  
CHUNG-WOOK ROH ◽  
GUN-WOO MOON ◽  
MYUNG-JOONG YOUN
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Power Factor Correction ◽  
Power Level ◽  
Harmonic Distortion ◽  
Voltage Regulation ◽  
Single Stage ◽  
Unity Power Factor ◽  
Forward Converter ◽  
Current Harmonic

This paper presents a new single-stage single-switched forward converter with magnetic coupled nondissipative snubber, which gives good power factor correction (PFC), low current harmonic distortion, and tight output voltage regulation. The proposed converter features low switch current and voltage stresses, essential for the design of a single-stage power factor correction converter. The prototype shows that the IEC1000-3-2 requirements are met satisfactorily with nearly unity power factor. This proposed converter with magnetic coupled nondissipative snubber is particularly suited for power supply applications with low power level.

TOWARD A PLUG-AND-PLAY APPROACH FOR ACTIVE POWER FACTOR CORRECTION

2004 ◽  
Vol 13 (03) ◽  
pp. 599-612
Author(s):  
ILYA ZELTSER ◽  
SAM BEN-YAAKOV
Keyword(s):  
Power Factor ◽  
Control Method ◽  
Power Factor Correction ◽  
Input Voltage ◽  
Active Power ◽  
The Novel ◽  
Plug And Play ◽  
Control Scheme ◽  
Design And Manufacturing ◽  
The Cost

The feasibility of producing a modular Active Power Factor Correction (APFC) system was studied analytically and experimentally. It is shown that the novel control scheme that does not need the sensing of the input voltage is highly compatible with the modular, plug-and-play concept. Modularity is achieved by aggregating practically all the electronics in an IC or hybrid unit that may also include the power switch. This unit plus a line rectifier, inductor and bus capacitor are all that it takes to form an APFC system. It is demonstrated that dynamic stability is assured by the proposed inherent robust control method. This plug-and-play solution will greatly simplify and reduce the cost of the design and manufacturing of APFC front ends.

Modified Bridgeless SEPIC Rectifier for Power Factor Correction with Reduced Switch Stress Operating in Continuous Conduction Mode

2018 ◽  
Vol 27 (08) ◽  
pp. 1850127 ◽  
Author(s):  
Vinaya Sagar Kommukuri ◽  
Kanungo Barada Mohanty ◽  
Aditi Chatterjee ◽  
Kishor Thakre
Keyword(s):  
Power Factor ◽  
High Performance ◽  
Power Factor Correction ◽  
Input Voltage ◽  
Voltage Regulation ◽  
Analysis And Design ◽  
High Power Factor ◽  
Voltage Stress ◽  
Conduction Mode ◽  
Switch Voltage

In this paper, a high performance single-phase modified bridgeless AC–DC converter with reduced switch voltage stress for power factor correction (PFC) is introduced. The proposed converter is based on a single-ended primary-inductance converter (SEPIC) to meet the demands of PFC to unity and output voltage regulation. To reduce the number of components, the input bridge is combined with the SEPIC converter since the conventional SEPIC PFC is suffering with high conduction losses. It offers many advantages, such as fewer semiconductor devices in current flowing path which lead to improve the thermal management, low stress on each component, improved efficiency, high power factor compared to classical converter. Detailed analysis and design equations of the converter are presented. Simulation and experimental results are discussed for a 300[Formula: see text]W prototypeunder the universal input voltage (85–235[Formula: see text]V) to validate the performance of the converter.

A Duty Cycle Adjustment Strategy for Embedded Boost Power Factor Correction

2013 ◽  
Vol 392 ◽  
pp. 682-686
Author(s):  
Lei Shi ◽  
Hong Kun He ◽  
Lin Bo Wang ◽  
Jin Jin Yang ◽  
Qian Ni Feng
Keyword(s):  
Power Factor ◽  
Duty Cycle ◽  
Control Method ◽  
Power Factor Correction ◽  
Input Voltage ◽  
Sinusoidal Signal ◽  
Input Current ◽  
Test Results ◽  
Adjustment Strategy ◽  
Sinusoidal Waveform

The embedded boost power factor correction (PFC), which is realized by a storable duty cycle control method, has been verified that it can achieve good performance when the input voltage is standard sinusoidal signal. But the input current can not keep the good sinusoidal waveform all the time when the amplitude of the input voltage changes. In order to solve the problem, this paper presents a duty cycle adjustment strategy for embedded boost power factor correction. This strategy can adjust the duty cycle data synchronously when the amplitude of the input voltage changes. Its test results show that the adjustment strategy can achieve better performance to make the input current follow the shape and phase of the input voltage. The proposed duty cycle adjustment strategy can get the embedded boost power factor correction more effective and practical.

New digital control method for power factor correction

2006 ◽  
Vol 53 (3) ◽  
pp. 987-990 ◽  
Author(s):  
Wanfeng Zhang ◽  
Guang Feng ◽  
Yan-Fei Liu ◽  
Bin Wu
Keyword(s):  
Power Factor ◽  
Digital Control ◽  
Control Method ◽  
Power Factor Correction
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