Conducted noise from 48 volt DC-DC converters used in telecommunications systems and its mitigation for EMC

Kraft, C.

doi:10.1109/telesc.2000.918463

Cited by 3 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, in ships with 650 V load, 1000 V common bus is used and in aircraft with 250 V battery, 270 V common bus is used. In transportation systems, for the power electronic converters, one of the primary consideration is to achieve high power density in [4], [5]. However, at all common interfaces, the power quality standards and conducted electromagnetic interference (EMI) must be enforced for ensuring system compatibility.…”

Section: First Sectionmentioning

confidence: 99%

Reduction of Electromagnetic Interference Using EMI Filter in a Buck Converter

Shirley

Sasipriya²,

T³

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The presence of non-isolated DC-DC buck converter plays a crucial role in electrification of aircraft, bio-medical and automotive devices. To obtain output devoid of interference from external sources, maximizing specific power or power density of the EMI filter is necessary. This requires a filter that is capable of eliminating or filtering these unwanted surges or spikes in the power converters. In this paper an EMI filter is placed in the buck converter operating with common mode/differential mode. An EMI filter is first designed taking into account the impact of interference in the power rails and the ground rails. The model is implemented and the output of the buck converter in the presence and absence of the proposed EMI filter is analysed.

show abstract

Section: First Sectionmentioning

confidence: 99%

Reduction of Electromagnetic Interference Using EMI Filter in a Buck Converter

Shirley

Sasipriya²,

T³

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Prototype flyback converter was built adequately to the parameter specification as in Table 1. It corresponds to a typical sizing of 48 Volt DC/DC converters used in telecommunications network equipment [20]. To realise converter switching operation, the FDB2572 N‐channel Power Trench MOSFET and the NTST20120CTG trench based Schottky rectifier were chosen.…”

Section: Model Validationmentioning

confidence: 99%

Electromagnetic interference frequencies prediction model of flyback converter for snubber design

Rucinski

Musznicki

Chrzan

2015

IET Power Electronics

View full text Add to dashboard Cite

Snubber design for flyback converters usually requires experimental prototype measurements or simulation based on accurate and complex models. In this study simplified circuit modelling of a flyback converter has been described to dimension snubbers in early stage of design process. Simulation based prediction of the transistor and diode ringing frequencies has been validated by measurements in a prototype setup. In that way obtained simulation data enabled fast and precise snubbers dimensioning. Application example has illustrated effectiveness of the proposed methodology by line impedance stabilisation network (LISN) spectra evaluation of the experimental flyback converter resulting from snubbers dimensioning.

show abstract

“…The potential EMI problem has been well covered in the literatures [2][3][4]. By operating a DC-DC converter with a soft switching scheme without disturbing its averaged duty cycle, it is possible to eliminate predominant harmonics present in the input current to reduce overall peak amplitude of the frequency spectrum.…”

Section: Introductionmentioning

confidence: 99%

EMI specifics of synchronous DC-DC buck converters

Pommerenke

2005 International Symposium on Electromagnetic Compatibility, 2005. EMC 2005.

View full text Add to dashboard Cite

DC-DC buck converter topology is widely used in computers and telecom applications because of its high power efficiency and multiple DC levels. However, EMI can be an issue because of its fast switching characteristics and large currents. This paper addresses the analysis of radiated EMI problems associated with DC-DC buck converters and evaluates the effectiveness of solutions that minimize the reverse recovery of the Drain-Bulk diode of the synchronous switching MOSFET.

show abstract

Conducted noise from 48 volt DC-DC converters used in telecommunications systems and its mitigation for EMC

Cited by 3 publications

References 2 publications

Reduction of Electromagnetic Interference Using EMI Filter in a Buck Converter

Reduction of Electromagnetic Interference Using EMI Filter in a Buck Converter

Electromagnetic interference frequencies prediction model of flyback converter for snubber design

EMI specifics of synchronous DC-DC buck converters

Contact Info

Product

Resources

About