A 1-MHz Resonant LED Driver With Charge-Pump-Based Power Factor Correction

Ammar, Ahmed M.; Spliid, Frederik M.; Nour, Yasser; Knott, Arnold

doi:10.1109/jestpe.2021.3083404

Cited by 6 publications

(2 citation statements)

References 40 publications

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“…A PF-corrected LUO converter and canonical switching cell (CSC)-converter-based BLDCM drive has been presented in [14,15], respectively. To minimize electromagnetic-interference-related problems, various resonant-converter-based BLDCM drives have been presented in [16][17][18][19]. Interleaved configurations of PF-corrected converters offer certain advantages over bridged converters, such as better power distribution, current ripple cancellation, faster response to transients, and a reduction in passive component size, which have been presented…”

Section: Introductionmentioning

confidence: 99%

A Bridgeless Cuk-BB-Converter-Based BLDCM Drive for MEV Applications

Shukla

Nikolovski

2023

Energies

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This article presents a brushless DC motor (BLDCM) drive for a maritime electric vehicle (MEV) application. The presented BLDCM drive uses a bridgeless Cuk-buckboost (BL-Cuk-BB) converter for input-side power factor (PF) improvement. The BL-Cuk-BB converter uses the buckboost converter for the negative half-cycles of the input AC voltages and the Cuk converter for the positive half-cycles. In the case of MEVs, the drive systems are generally fed by diesel engine generators (DEGs). The asymmetric BL-Cuk-BB converter is operated in a discontinuous inductor current mode (DICM) in the present work to attain better power quality. The usage of a second-order buckboost converter with a fourth-order Cuk converter results in a decrement in the net order of the system. Additionally, the input inductor of the Cuk converter also participates as the filter component along with capacitor C2 during buckboost converter operation to enhance the power quality. The total component count reduction in the BL-Cuk-BB converter is also achieved by eliminating the usage of extra/external back-feeding diodes, which are generally used in bridgeless schemes. The present scheme uses the inbuilt anti-parallel diodes for the same purpose. The lesser components requirement in the BL-Cuk-BB-converter-based BLDCM drive implies lesser cost and volume, along with greater reliability, lower conduction losses, and lower weight of the BLDCM drive, which adds to the merits of the model. The paper includes a detailed mathematical model and stability analysis using pole-zero maps and bode plots of the BL-Cuk-BB converter for each half-supply AC voltage cycle. The BL-Cuk-BB-converter-based BLDCM drive for an EV application has been developed on the MATLAB/Simulink platform for a DICM operation, and the MATLAB simulation results have been presented for validation of the BL-Cuk-BB-converter-based BLDCM drive.

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Section: Introductionmentioning

confidence: 99%

A Bridgeless Cuk-BB-Converter-Based BLDCM Drive for MEV Applications

Shukla

Nikolovski

2023

Energies

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“…However, PQimproved canonical cell (CC) converter-based BLDC driver system is reported by Bist and Singh [19]. For EMI problem, various resonant converters have been reported in literature [20,21,24,25]. e soft switching technique to increase the performance from reliability, reduction in switching losses, and EMI interference point of view, is presented by Pahlevani and Jain [26].…”

Section: Introductionmentioning

confidence: 99%

A BL-CC Converter-Based BLDC Motor Drive for Marine Electric Vehicle Applications

Shukla

Kalla

2022

International Transactions on Electrical Energy Systems

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This article presents a BLDC (permanent magnet brushless DC) motor drive for marine electric vehicle (MEV) application. The presented scheme uses bridgeless canonical cell (BL-CC) converter with center-tapped inductor (shown as two separate inductors for analysis purpose) for source-side power factor correction (PFC); however, the BL-CC converter requires two inductors. In the presented scheme use of one center-tapped inductor eliminates the requirement of one extra inductor. Thus, center-tapped inductor usage in BLDC motor drive results in decrement in components count. The BL-CC converter-based BLDC motor drive scheme do not require extra back-feeding diodes like other bridgeless (BL) schemes, but it uses inbuilt antiparallel diodes of insulated gate bipolar transistor (IGBT) switches for the same purpose this again leads to decrement in required component count. In this work, PFC BL-CC converter is operated in discontinuous inductor current (DIC) mode to attain better power quality. The DIC mode operation requires only one voltage sensor to sense DC-link voltage, whereas in continuous conduction mode (CCM), the sensor requirement increases to three (two voltage sensors and one current sensor). The PFC BL-CC converter also eliminates the diode bridge rectifier stage. The elimination of one extra inductor, two extra back-feeding diodes, DBR stage and also requirement of only one voltage sensor in DIC mode operation instead of three sensors for CCM implies reduction in components count which implies the reduction in cost and also the volume and weight of the BLDC motor drive. The weight reduction for marine (on-board) electric vehicle is very important as this enhances the vehicle performance. This paper also presents the detailed mathematical modeling and stability analysis of presented BL-CC converter using pole zero map and Bode plot. The BL-CC converter-based BLDC motor driving system for MEV application for DIC mode operation has been developed in the laboratory as well as on MATLAB/Simulink platform and simulated MATLAB and real-time experimental results have been presented to validate the presented BLDC motor drive under steady-state and dynamic operating conditions.

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A 1-MHz Resonant LED Driver With Charge-Pump-Based Power Factor Correction

Cited by 6 publications

References 40 publications

A Bridgeless Cuk-BB-Converter-Based BLDCM Drive for MEV Applications

A Bridgeless Cuk-BB-Converter-Based BLDCM Drive for MEV Applications

A BL-CC Converter-Based BLDC Motor Drive for Marine Electric Vehicle Applications

Improved design of LED lamp circuit to enhance distribution transformer capability based on a comparative study of various standards

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