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Jānis Jankovskis

Riga Technical University

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Featured researches published by Jānis Jankovskis.

IOP Conference Series: Materials Science and Engineering | 2012

Dimensional effects of sample geometry and microstructure of MnZn and NiZn ferrites

Jānis Jankovskis; Nikolajs Ponomarenko; N Mironova-Ulmane; D Jakovlevs

The effects of sizes of polycrystalline ferrite ring cores on magnetic characteristic - complex initial permeability (CIP) are studied. In the case of MnZn ferrite under uncontrolled microstructure (grain sizes) clear size effect is observed: dispersion of smaller core sizes is at higher frequencies and vice versa. In the case of controlled microstructure (NiZn ferrite) no size effects were observed.

publication.editionName | 2008

Examination of Different Spread Spectrum Techniques for EMI Suppression in dc/dc Converters

Jānis Jankovskis; Deniss Stepins; S. Tjukovs; D. Pikulins

publication.editionName | 2014

Complex Permeability of Ferrites as Intrinsic and Extrinsic Properties

Jānis Jankovskis; Nikolajs Ponomarenko

publication.editionName | 2010

Improving Effectiveness of the Use of Frequency Modulation in Power Converters

Jānis Jankovskis; Deniss Stepins; Dmitrijs Pikuļins

publication.editionName | 2013

Frequency Dependence of Complex Permeability of Polycrystalline Ferrites Based on the Realities of Microstructure

Jānis Jankovskis; Nikolajs Ponomarenko; Deniss Stepins

Elektronika Ir Elektrotechnika | 2013

Effects of Spread Spectrum on Output Filter of Buck Converter

Jānis Jankovskis; Deniss Stepins; Nikolajs Ponomarenko

publication.editionName | 2012

Dimensional Effects of Sample Geometry and Microstructure of MnZn and NiZn Ferrites

Jānis Jankovskis; Nikolajs Ponomarenko; Ņina Mironova-Ulmane; Dmitrijs Jakovļevs

publication.editionName | 2010

Effects of Increasing Switching Frequency in Frequency Modulated Power Converters

Jānis Jankovskis; Deniss Stepins; Dmitrijs Pikuļins

publication.editionName | 2010

Efficiency of PFC Operating in Spread Spectrum Mode for EMI Reduction

Jānis Jankovskis; Deniss Stepins; Dmitrijs Pikuļins

publication.editionName | 2006

An Examination of Parasitic Processes in DC/DC Power Converters

Jānis Jankovskis; Deniss Stepins

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Deniss Stepins

Riga Technical University

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Nikolajs Ponomarenko

Riga Technical University

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D Jakovlevs

Riga Technical University

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Dmitrijs Jakovļevs

Riga Technical University

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