Experimental verification of soft switching push-pull DC to DC converter

Devikala, S.; Nirmalkumar, P.

doi:10.1109/pedes.2012.6484470

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…The forward converter operates only in one quadrant of the B-H curve, moves upward the curve when the switch is on and resets during off period. Since there is no active reset the coercive falls to zero and the residual flux drops to the remanent flux, B R [1]. The advantage of push-pull convertor is that it works in two quadrants of the B-H curve, see-sawing back and forth as each primary is initiated.…”

Section: Magnetization Characteristics Of Push-pull Convertermentioning

confidence: 99%

High Input Power Factor High Frequency Push-Pull DC/DC Converter

Deshmukh¹,

Sheikh²,

Giri³

et al. 2016

IOSR

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Section: Magnetization Characteristics Of Push-pull Convertermentioning

confidence: 99%

High Input Power Factor High Frequency Push-Pull DC/DC Converter

Deshmukh¹,

Sheikh²,

Giri³

et al. 2016

IOSR

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“…The most common isolated converter topologies used in the industry are flyback converter, forward converter, push-pull converter, HB converter and full-Bridge converter. In Push-pull, (Devikala and Nirmalkumar, 2012) single ended and interleaved forward topologies, (Habumugisha et al, 2013) the OFFstate voltage withstanding capability requirement of MOSFET is equal to the twice of DC input voltage 2Vi (Chryssis, 1984). Higher OFF-state voltage withstanding increases stress and cost of the power switches (Imbertson and Mohan, 1993;Arias et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Design of symmetrical half-bridge converter with a series coupling capacitor

Rashmi

Jagtap

2020

WJE

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Purpose With the advancement of technology, size, cost, and losses of the switched mode power supply (SMPS) have been decreasing. However, due to the high frequency switching, design of magnetic drives and isolation circuits are becoming a crucial factor in SMPS. This paper presents design criteria, procedure and implementation of AC-DC half bridge (HB) converter with lower cost, smaller size and lower voltage stress on the power switch. Design/Methodology/approach The HB converter is designed in a symmetrical mode with a series coupling capacitor. Isolated power supplies are used for the converter and control circuit. Further, a transformer based isolated gate driver is used to drive both MOSFETs. The control IC works in voltage control mode to regulate voltage by controlling the duty cycle of the MOSFETs. Findings Control characteristics and performance of the HB converter is simulated using the MATLAB software and prototype of 170 W HB converter is built to validate the analytical results under variable load current and source voltage. The power quality and variation of load voltage at 2 A, 5 A, 7 A are reported. Originality/value This paper presents the design of a low-cost HB converter in a symmetrical mode which saves the additional cost of symmetric correction circuit normally required in asymmetrical mode design. This paper also focuses on the selection of primary and secondary side switch, series coupling capacitor, commuting diode, isolated drive and charge equalizer resistor.

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