Design of a four-phase interleaved boost circuit with closed-coupled inductors

Ebisumoto, Daigoro; Ishihara, Masataka; Kimura, Shota; Martínez, Wilmar; Noah, Mostafa; Yamamoto, Masaaki; Imaoka, Jun

doi:10.1109/ecce.2016.7855022

Cited by 6 publications

(4 citation statements)

References 16 publications

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“…Even choosing the long wire to measure both configurations and trying to keep the area spanned by this wire the same, the measurement of L s ij will tend to be greater and L o ij smaller. This means that the resulting k ij [see (6)] and its equivalent L ij [see (5)] will be larger as well. is considered, then L s ij will be as it should be but L o ij will be smaller than it should be.…”

Section: ) When L Iimentioning

confidence: 99%

“…is considered, then L s ij will be as it should be but L o ij will be smaller than it should be. Again, this means that the resulting k ij [see (6)] and its equivalent L ij [see (5)] will be larger. This effect is material dependent and manufacturers usually provide permeability changes for fluxes above 1 mT .…”

Section: ) When L Iimentioning

confidence: 99%

“…S WITCHING mode power supplies with multiple-outputs are widely employed. The use of multiple coupled inductors (MCI) is still a hot topic [1]- [5] in order to save volume, mass, reduce current ripple, improve dynamic cross regulation, and reduce EMI. Therefore, it is an important goal to have an accurate and easy to measure model of an MCI that helps to analyze the circuit and guarantees the simulation of the power converter.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Measuring Coupling Coefficient of Windings With Dissimilar Turns’ Number or Tight Coupling Using Resonance

Gilabert-Palmer

Sanchis-Kilders

Esteve

et al. 2018

IEEE Trans. Power Electron.

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Multiple coupled inductors are used in power electronics to improve the dynamic cross regulation and to reduce mass and volume, mainly in high performance application, such as space or defense, where manufacturing cost is not the main driver. These elements can be modeled with its inductance matrix which is a symmetric and positive semidefinite matrix. The inductance matrix eases circuit analysis, many known circuital models are directly related to it and it can be used in SPICE simulation via its coupling coefficient component, which can be identified as the normalized matrix of the inductance matrix. Therefore, a precise and correct measurement technique of the inductance matrix or coupling coefficient matrix is needed. This paper analyzes different measuring techniques described in the technical literature and proposes a new method to measure the coupling coefficient or inductance matrix of tight coupled or dissimilar turns' number windings, where other methods fail. A discussion follows, to know the influence of parasitic elements in the accuracy of the new proposed method called resonance (RE) method. The paper adds three experimental examples to verify the theoretical study and concludes that the RE method provides correct values of the coupling coefficient k of tight coupled or dissimilar turns' number windings compared to other measurement techniques.

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Section: ) When L Iimentioning

confidence: 99%

Section: ) When L Iimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Measuring Coupling Coefficient of Windings With Dissimilar Turns’ Number or Tight Coupling Using Resonance

Gilabert-Palmer

Sanchis-Kilders

Esteve

et al. 2018

IEEE Trans. Power Electron.

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show abstract

“…Energies 2018, 11, 130 2 of 21 lift techniques have been proposed [23][24][25]. However, there still exist several disadvantages that might be further optimized in order to improve the electrical behavior at the power stage, which deal with power limit when interleaved topology is considered, while voltage gain is limited at high powers because of the conduction losses of the circuit, which increase by an extreme amount at high power levels together with losses of magnetic material, which are also a limiting factor when saturation or DC biasing comes into account [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

High Gain Boost Interleaved Converters with Coupled Inductors and with Demagnetizing Circuits

et al. 2018

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This paper proposes double interleaved boost converters with high voltage gain and with magnetically coupled inductors, while a third coupled winding is used for magnetic flux reset of the core during converter operation. The topology of the proposal is simple, it does not require many additional components compared to standard interleaved topologies, and it improves the transfer characteristics, as well as system efficiency even for high power levels. The investigation of steady-state operation was undertaken. It was discovered that the proposed converter can be designed for a target application where very high voltage gain is required, while adjustment of voltage gain value can be done through duty-cycle variation or by the turns-ratio modification between individual coils. The 1 kW prototype was designed to test the theoretical analysis. The results demonstrate that the proposed converter achieves very high voltage gain (1:8), while for the designed prototype the peak efficiency reaches >96% even when two additional diodes and one winding were implemented within the converter's main circuit. The dependency of the output voltage stiffness on load change is minimal. Thus, the presented converter might be a proper solution for applications where tight constant DC-bus voltage is required (a DC-DC converter for inverters).

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Analysis and Design of A Step-Up Converter Based on Three-End Planar Coupled Inductor

Guan¹,

Cheng²,

Yao³

et al. 2021

2021 IEEE Industry Applications Society Annual Meeting (IAS)

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Design of a four-phase interleaved boost circuit with closed-coupled inductors

Cited by 6 publications

References 16 publications

Measuring Coupling Coefficient of Windings With Dissimilar Turns’ Number or Tight Coupling Using Resonance

Measuring Coupling Coefficient of Windings With Dissimilar Turns’ Number or Tight Coupling Using Resonance

High Gain Boost Interleaved Converters with Coupled Inductors and with Demagnetizing Circuits

Analysis and Design of A Step-Up Converter Based on Three-End Planar Coupled Inductor

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