Improved power quality SMPS for computers using bridgeless PFC converter at front end

Singh, Shikha; Singh, Bhim; Bhuvaneswari, G.

doi:10.1109/iicpe.2014.7115753

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…In the bridgeless converter number of 1428 elements conduct during each cycle are reduce as compare to the bridge rectifier. This significantly reduces losses in the circuit as reported in [7][8][9][10][11][12][13][14]. The Bridgeless SEPIC converter offer reduction of cost, light, increases efficiency at the same time maintaining near unity power factor performance.…”

Section: Introductionmentioning

confidence: 81%

Bridgeless PFC single ended primary inductance converter in continuous current mode

Akmal¹,

Aziz²,

Sahid³

et al. 2019

IJPEDS

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This paper presents bridgeless single ended primary inductor (SEPIC) converter operated in continuous conduction mode (CCM). The converter used in the study offers a lesser conduction loss compared to the other bridgeless SEPIC converter. In order to regulate the required output current and output voltage with high efficiency while achieving high power factor correction (PFC) at the input side, average current mode control (ACMC) is applied. The model is simulated using MATLAB/Simulink and it is found that the converter and the proposed control strategy provide a promising result. The preliminary results obtained from the experimental test-rig shows a good agreement as in simulation. The theoretical analysis of the proposed controller is verified on an output 100V to 300W prototype.

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Section: Introductionmentioning

confidence: 81%

Bridgeless PFC single ended primary inductance converter in continuous current mode

Akmal¹,

Aziz²,

Sahid³

et al. 2019

IJPEDS

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“…In general, the personal computers (PCs) use Switched Mode Power Supplies (SMPS) [17]. The main advantages of SMPS are: (a) reduced size and weight; (b) efficient operation by means of proper regularization and control of the d.c. required by the load; (c) elimination of the step-down voltage transformer toward the power supply in order to control the supplying voltage.…”

Section: Some Considerations Concerning Power Qualitymentioning

confidence: 99%

“…The main drawback of SMPS consists in the significant distortion of the current absorbed from the supplying network. Efforts were made recently in order to improve the PCs supply [17,18]. Some studies were focused on the correction of power factor for cases like this [19].…”

Section: Some Considerations Concerning Power Qualitymentioning

confidence: 99%

Power Quality and Electromagnetic Compatibility Aspects at Personal Computers

Nicolae

2022

Energies

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In this article, issues related to electromagnetic compatibility and energy/power quality for a laptop are addressed. Power quality problems are outlined. Testing frameworks (developed by authors) are presented and discussed for a laptop when two different sampling frequencies are used: 80 kHz and 19.2 kHz. Waveforms corresponding to the voltage across the laptop’s terminals and current absorbed by it were acquired. Recordings and numerical processing, based on original software using Fast Fourier Transform, are discussed, and the analysis of waveforms in both cases is performed. Various power quality indices were calculated. Theoretical and practical aspects related to the determination of power quantities, power flows, and power factor are presented. Some conclusions concerning different ranges of frequencies are presented, along with some considerations for power quality problems. Tests for conducted emissions (single phase and neutral wire respectively) and for the radiated emissions (for horizontal and vertical polarizations) are presented. Comparisons to the emission standards were made. The immunity behavior for a laptop is discussed according to immunity standards. It is shown that new measures (e.g., active filters) are necessary for network protection when connecting a laptop to the network. Some considerations, based on the authors’ observations concerning new standards for power quality and electromagnetic compatibility, are outlined.

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“…Reliability Measures for Switched-Mode Power Supplies (CFSMPS) with Redundant Flyback Transformer was the product of Pankaj et.al [9]. Improved Power Quality CFSMPS for Computers Using Bridgeless PFC Converter at Front End owes it to Singh et.al [10]. A novel method of Switched mode power conversion design has been suggested by Middlebrook et.al.…”

Section: Introductionmentioning

confidence: 99%

Fractional PID controlled cascaded flyback switched mode power supply with enhanced time domain response

Sasikala

Kumar

2019

IJPEDS

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<p>This work compacts with the modeling, simulation, and application of a Fractional Order Proportional Integral Differential (FOP-I-D) controlled Cascaded Flyback Switched Mode Power Supply (CFSMPS) system. It recommends Parallel cascaded flyback converter for the production of essential DC voltage from the input supply voltage. The output from CFSMPS is regulated by using closed loop configuration. The simulation of Closed-loop Proportional-Integral (PI) and FOP-I-D controlled CFSMPS system has been done and the results of the systems are related. The outcomes signify that the FOP-I-D based system has presented an enhanced response to represent as similar to the PI controlled CFSMPS system. The FOP-I-D controlled CFSMPS system has benefits like decreased steady-state error and enhanced time-domain response.</p>

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Improved power quality SMPS for computers using bridgeless PFC converter at front end

Cited by 5 publications

References 14 publications

Bridgeless PFC single ended primary inductance converter in continuous current mode

Bridgeless PFC single ended primary inductance converter in continuous current mode

Power Quality and Electromagnetic Compatibility Aspects at Personal Computers

Fractional PID controlled cascaded flyback switched mode power supply with enhanced time domain response

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