Papers by Ganesh Chaturvedi
Journal of Power Electronics, Oct 1, 2007
The design and performance analysis of a power factor corrected (PFC), single-phase, single switc... more The design and performance analysis of a power factor corrected (PFC), single-phase, single switch flyback buck-boost ac-dc converter is carried out for low power battery charging applications. The proposed configuration of the flyback buck-boost ac-dc converter consists of only one switch and operates in discontinuous current mode (DCM), resulting in simplicity in design and manufacturing and reduction in input current total harmonic distortion (THD). The design procedure of the flyback buck-boost ac-dc converter is presented for the battery charging application. To verify and investigate the design and performance, a simulation study of the flyback buck-boost converter in DCM is performed using the PSIM6.0 platform. A laboratory prototype of the proposed single switch flyback buck-boost ac-dc converter is developed and test results are presented to validate the design and developed model of the system.
This paper addresses several issues concerning the analysis, design, modeling, simulation and dev... more This paper addresses several issues concerning the analysis, design, modeling, simulation and development of single-phase, single-switch, power factor corrected AC-DC high frequency switching converter topologies with transformer isolation. A detailed analysis and design is presented for single-switch topologies, namely forward buck, flyback, Cuk, Sepic and Zeta buck-boost converters, with high frequency isolation for discontinuous conduction modes (DCM) of operation. With an awareness of modern design trends towards improved performance, these switching converters are designed for low power rating and low output voltage, typically 20.25W with 13.5V in DCM operation. Laboratory prototypes of the proposed single-switch converters in DCM operation are developed and test results are presented to validate the proposed design and developed model of the system.
The design and performance analysis of a power factor corrected (PFC), single-phase, single switc... more The design and performance analysis of a power factor corrected (PFC), single-phase, single switch flyback buck-boost ac-dc converter is carried out for low power battery charging applications. The proposed configuration of the flyback buck-boost ac-dc converter consists of only one switch and operates in discontinuous current mode (DCM), resulting in simplicity in design and manufacturing and reduction in input current total harmonic distortion (THD). The design procedure of the flyback buck-boost ac-dc converter is presented for the battery charging application. To verify and investigate the design and performance, a simulation study of the flyback buck-boost converter in DCM is performed using the PSIM6.0 platform. A laboratory prototype of the proposed single switch flyback buck-boost ac-dc converter is developed and test results are presented to validate the design and developed model of the system.
Journal of Electrical Engineering and Technology, 2009
This paper presents a flyback technology in power conversion aimed at increasing efficiency and p... more This paper presents a flyback technology in power conversion aimed at increasing efficiency and power density, reducing cost and using minimum components in AC-DC conversion. The proposed converter provides these features for square waveforms and constant frequency PWM. It is designed to operate in a wide input voltage range of 75-265VAC RMS with two output voltages of 5V and 20V respectively and full load output power of 5W. The proposed converter is suitable for high efficiency and high power density application such as LCDs, TV power modules, AC adapters, motor control, appliance control, telecom and networking products.
2008 Joint International Conference on Power System Technology and IEEE Power India Conference, 2008
This paper addresses several issues concerning the modeling and application of single-phase, sing... more This paper addresses several issues concerning the modeling and application of single-phase, single switch, power factor corrected AC-DC high frequency switching converter topologies with transformer isolation. A detailed analysis, simulation and development are presented for forward buck and flyback buck-boost converters with high frequency isolation in discontinuous conduction mode (DCM) operation. To verify and investigate the design and performance at preliminary stage, simulation study of these converters is accomplished in DCM operation for input AC voltage 220V at 50 Hz and output DC voltage of 13.5V and 20.25W output power rating using PSIM6.0 platform. Simulation results show high quality steady state performance from 20% to 100% loading conditions with good power factor and efficiency. Test results on developed converters are compared with simulated results to validate the design. This work, highlighting advantages and drawbacks of both the selected topologies, facilitate designers to make a proper choice for a given application in the low power range (below 25 W).
2006 International Conference on Power Electronic, Drives and Energy Systems, 2006
... It is observed that DCM Bhim Singh and Ganesh Dutt Chaturvedi are with Department of Electric... more ... It is observed that DCM Bhim Singh and Ganesh Dutt Chaturvedi are with Department of Electrical Engg, IITDelhi, New Delhi, India-110016 (e-mail: bhimsinghrAgmail.com, gd7febAyahoo.co.in). 0-7803-9772-X/06/$20.00 (©2006 IEEE ... [2] Ningliang Mi, Boris Sasic, Jon Marshall ...
IETE Journal of Research, 2008
ABSTRACT This paper presents modeling, simulation and development of high frequency isolation bas... more ABSTRACT This paper presents modeling, simulation and development of high frequency isolation based single-phase buck-boost AC-DC Cuk converter, which consists of only one switch, resulting in simplicity in design and manufacturing, and reduction in input current total harmonic distortion (THD). Design and analysis are carried out for a 13.5 V output voltage and 20.25 W output power. To validate the design of the converter at the primary stage, the simulation is performed in discontinuous conduction mode (DCM) and continuous conduction mode (CCM) of operation, using PSJM 6.0 platform, which shows high-level steady state and dynamic performance. A laboratory prototype of the proposed single switch Cuk buck-boost converter in DCM operation is developed and test results are presented to validate the proposed design and developed model of the system.
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Papers by Ganesh Chaturvedi