EPE Association: EPE 2025 - LS1e: Magnetic Components

EPE 2025 - LS1e: Magnetic Components - Inductors and Transformers
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 08: Components linked to Power Electronics > EPE 2025 - LS1e: Magnetic Components - Inductors and Transformers

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   Current Transformer-Based Power Supply for Pulse Encoders on Motor Power Lines in Adjustable Speed Drive Systems
By Takumi NAKAGAKI, Masamichi YAMAGUCHI, Hiroki WATANABE, Yuki NAKATA, Jun-Ichi ITOH, Takeshi KIRIBUCHI, Shigeo MORIMOTO [View]
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Abstract: This paper proposes a novel power supplysystem for an encoder in motor drive systems.The proposed system eliminates the need for adedicated power supply cable for the encoder byutilizing a current transformer connected to theload motor. A design method for the currenttransformer is presented, considering itsoperation under non-linear loads and variablefrequencies. The design process is simplified bymodeling the diode rectifier as an equivalentvoltage source. The validity of the proposeddesign is verified through experiments,demonstrating that the output voltage closelymatches the design values. Additionally, a DCDCconverter is implemented at the output side ofthe diode rectifier to stabilize the output voltage.Experimental results confirm voltagestabilization across the entire operating range onthe N-T map.

   Design Optimization of Integrated CM/DM Inductors for Power Drive Input Filter
By Rodrigo DRUMMOND, Bernardo COUGO, Duc-Hoan TRAN, Gregory ALMEIDA, Sébastien SERPAUD, Victor DOS SANTOS, Lenin MORAIS [View]
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Abstract: More electric aircraft face many challenges regarding weight and losses of power quality and EMI filters. A solution to reduce weight and losses is integrating the Differential Mode (DM) and Common Mode (CM) inductances of filters in the same component. This integration can be accomplished by adding extra magnetic paths and windings to a CM choke to increase its leakage inductance further. This paper proposes a design optimization of an integrated CM/DM inductor for EMI input filters of Power Drive Systems used in more electric aircraft. The integrated solution is then compared to an optimized discrete solution, showing significant reductions in weight and losses.

   Investigating the Impact of Alignment Angle Between Copper Turns and Magnetic Core on Magnetic Field Coupling in PCB Integrated Inductors
By Mohamed ALKURDI, Mickael PETIT, Mounira BOUARROUDJ, Christian MARTIN [View]
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Abstract: This study investigates the influence of copper trace alignment relative to the magnetic core in PCB-embedded inductors, focusing on the effects of the alignment angle on perpendicular magnetic flux density that shall cause eddy currents in AC applications. Although aligning traces at right angles is common in traditional inductor winding, it may not be feasible for PCB designs due to manufacturing constraints. The study proposes an investigation of the angular-shift effects on magnetic flux while maintaining practical PCB manufacturability in potential applications like static power converters. By evaluating how the angular shift impacts magnetic flux behavior in copper traces, this research is part of a study that aims to address efficiency losses and heating caused by eddy currents. Through Finite Element Method (FEM) simulations using Ansys Maxwell software and experimental validation, the results demonstrate that smaller alignment angles, particularly at 0°, reduce perpendicular flux what shall mitigate eddy current formation in AC applications, improving inductor performance.

EPE 2025 - LS1e: Magnetic Components - Inductors and Transformers
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 08: Components linked to Power Electronics > EPE 2025 - LS1e: Magnetic Components - Inductors and Transformers
	[return to parent folder]

	Current Transformer-Based Power Supply for Pulse Encoders on Motor Power Lines in Adjustable Speed Drive Systems By Takumi NAKAGAKI, Masamichi YAMAGUCHI, Hiroki WATANABE, Yuki NAKATA, Jun-Ichi ITOH, Takeshi KIRIBUCHI, Shigeo MORIMOTO	[View] [Download]
Abstract: This paper proposes a novel power supplysystem for an encoder in motor drive systems.The proposed system eliminates the need for adedicated power supply cable for the encoder byutilizing a current transformer connected to theload motor. A design method for the currenttransformer is presented, considering itsoperation under non-linear loads and variablefrequencies. The design process is simplified bymodeling the diode rectifier as an equivalentvoltage source. The validity of the proposeddesign is verified through experiments,demonstrating that the output voltage closelymatches the design values. Additionally, a DCDCconverter is implemented at the output side ofthe diode rectifier to stabilize the output voltage.Experimental results confirm voltagestabilization across the entire operating range onthe N-T map.

	Design Optimization of Integrated CM/DM Inductors for Power Drive Input Filter By Rodrigo DRUMMOND, Bernardo COUGO, Duc-Hoan TRAN, Gregory ALMEIDA, Sébastien SERPAUD, Victor DOS SANTOS, Lenin MORAIS	[View] [Download]
Abstract: More electric aircraft face many challenges regarding weight and losses of power quality and EMI filters. A solution to reduce weight and losses is integrating the Differential Mode (DM) and Common Mode (CM) inductances of filters in the same component. This integration can be accomplished by adding extra magnetic paths and windings to a CM choke to increase its leakage inductance further. This paper proposes a design optimization of an integrated CM/DM inductor for EMI input filters of Power Drive Systems used in more electric aircraft. The integrated solution is then compared to an optimized discrete solution, showing significant reductions in weight and losses.

	Investigating the Impact of Alignment Angle Between Copper Turns and Magnetic Core on Magnetic Field Coupling in PCB Integrated Inductors By Mohamed ALKURDI, Mickael PETIT, Mounira BOUARROUDJ, Christian MARTIN	[View] [Download]
Abstract: This study investigates the influence of copper trace alignment relative to the magnetic core in PCB-embedded inductors, focusing on the effects of the alignment angle on perpendicular magnetic flux density that shall cause eddy currents in AC applications. Although aligning traces at right angles is common in traditional inductor winding, it may not be feasible for PCB designs due to manufacturing constraints. The study proposes an investigation of the angular-shift effects on magnetic flux while maintaining practical PCB manufacturability in potential applications like static power converters. By evaluating how the angular shift impacts magnetic flux behavior in copper traces, this research is part of a study that aims to address efficiency losses and heating caused by eddy currents. Through Finite Element Method (FEM) simulations using Ansys Maxwell software and experimental validation, the results demonstrate that smaller alignment angles, particularly at 0°, reduce perpendicular flux what shall mitigate eddy current formation in AC applications, improving inductor performance.