EPE Association: EPE 2020 - DS1a-3: Passive Components-3

EPE 2020 - DS1a-3: Passive Components-3
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 01: Devices, Packaging and System Integration > EPE 2020 - DS1a-3: Passive Components-3

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   A new design of an air core transformer for Electric Vehicle On-Board Charger
By Valentin RIGOT [View]
[Download]

Abstract: This paper compares two geometries of air core transformer, relevant for high frequency converters andhigh power densities: One logical toroidal, one innovative cylindrical. The manufacturing, the couplingparameter, the volume, and the flux leakage are examined in these topologies. The efficiency symbolizesa crucial parameter on power electronics, and a trade-off must ever be optimized between size andpower. The proposed innovative structure permits to strongly increase the converter power density foran identical efficiency

   Modeling of a Power Transformer including Higher Order Resonances
By Lukas REISSENWEBER [View]
[Download]

Abstract: A calculation method for the transient analysis of transformers is presented. The model is based on adetailed lumped element circuit, including frequency dependent material parameters. Using the example of a 300 W power transformer, it is demonstrated that the model shows good agreement to measurements of the complex impedance up to 100 MHz. Thereby, any load can be considered on the output side. Furthermore, the model allows a precise calculation of the transient current waveshape as well as voltage distribution for any input signal. This is demonstrated by practical measurements at 300 kHz switching frequency.

   Power density of planar transformers designed with commercial standard cores
By Reda BAKRI [View]
[Download]

Abstract: This paper presents a methodology to evaluate and analyze the volumetric power density of planar magnetics used in power electronics converters. The power density is computed for various EE and E/PLT cores considering optimal configurations for the planar transformers' design and for its cooling heatsink. The analysis is performed for three cooling configurations: natural convection without heatsink, single sided cooled component with one heatsink, and double sided cooled with two heatsinks. This study can be very useful for designers to evaluate their design specifications and to adapt their technological choices to achieve the desired planar magnetics' characteristics.

EPE 2020 - DS1a-3: Passive Components-3
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 01: Devices, Packaging and System Integration > EPE 2020 - DS1a-3: Passive Components-3
	[return to parent folder]

	A new design of an air core transformer for Electric Vehicle On-Board Charger By Valentin RIGOT	[View] [Download]
Abstract: This paper compares two geometries of air core transformer, relevant for high frequency converters andhigh power densities: One logical toroidal, one innovative cylindrical. The manufacturing, the couplingparameter, the volume, and the flux leakage are examined in these topologies. The efficiency symbolizesa crucial parameter on power electronics, and a trade-off must ever be optimized between size andpower. The proposed innovative structure permits to strongly increase the converter power density foran identical efficiency

	Modeling of a Power Transformer including Higher Order Resonances By Lukas REISSENWEBER	[View] [Download]
Abstract: A calculation method for the transient analysis of transformers is presented. The model is based on adetailed lumped element circuit, including frequency dependent material parameters. Using the example of a 300 W power transformer, it is demonstrated that the model shows good agreement to measurements of the complex impedance up to 100 MHz. Thereby, any load can be considered on the output side. Furthermore, the model allows a precise calculation of the transient current waveshape as well as voltage distribution for any input signal. This is demonstrated by practical measurements at 300 kHz switching frequency.

	Power density of planar transformers designed with commercial standard cores By Reda BAKRI	[View] [Download]
Abstract: This paper presents a methodology to evaluate and analyze the volumetric power density of planar magnetics used in power electronics converters. The power density is computed for various EE and E/PLT cores considering optimal configurations for the planar transformers' design and for its cooling heatsink. The analysis is performed for three cooling configurations: natural convection without heatsink, single sided cooled component with one heatsink, and double sided cooled with two heatsinks. This study can be very useful for designers to evaluate their design specifications and to adapt their technological choices to achieve the desired planar magnetics' characteristics.