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A Laplace transform approach to the simulation of DC‐DC converters
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2019AbstractAn approach to the simulation of pulse width modulation (PWM) direct current–direct current (DC‐DC) converters operated under continuous current mode (CCM) and discontinuous current mode (DCM) is presented. It is based on the use of the Laplace transform and of dedicated models for controlled switches and diodes.
Grasso F. +3 more
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1982 IEEE Power Electronics Specialists conference, 1982
A general purpose, magnetically isolated current sensor is described. Based upon the flux nulling technique, this sensor uses a novel flux detector, instead of a Hall effect device, to achieve improved performance at lower cost.
Jonathan R. Leehey +2 more
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A general purpose, magnetically isolated current sensor is described. Based upon the flux nulling technique, this sensor uses a novel flux detector, instead of a Hall effect device, to achieve improved performance at lower cost.
Jonathan R. Leehey +2 more
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DC–DC Converter Implementations Based on Piezoelectric Transformers
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022The drive to miniaturize power electronics motivates investigation into alternative passive component technologies such as piezoelectrics, which offer fundamentally higher power density and efficiency capabilities at small scales compared to magnetics.
Jessica D. Boles +3 more
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Power improvement of piezoelectric transformer based DC/DC converter
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012In this paper a novel strategy to increase the power of piezoelectric transformer (PT) by using a cooling system is presented. A thermal pad is directly attached to a PT to dissipate the heat and enhance the power capacity. In a piezoelectric ceramic the heat increase quickly when the vibration velocity become too large.
Su, Yu-Hao +5 more
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2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020
This paper proposes an adaptive control method for the dc transformer (DCT) of flexible dc distribution system to achieve automatic voltage regulation and bidirectional power transferring like ac transformers in any operation scenario. In the proposed method, each module is controlled at rated voltage ratio mode, thus the input voltage sharing and ...
An, Feng +5 more
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This paper proposes an adaptive control method for the dc transformer (DCT) of flexible dc distribution system to achieve automatic voltage regulation and bidirectional power transferring like ac transformers in any operation scenario. In the proposed method, each module is controlled at rated voltage ratio mode, thus the input voltage sharing and ...
An, Feng +5 more
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IEEE Spectrum, 1966
Although conventional transformers are ac, a device that may be termed a dc transformer has been constructed by using superconductors. To provide an understanding of how such a transformer would operate, some of the properties of type I and type II superconductors are reviewed.
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Although conventional transformers are ac, a device that may be termed a dc transformer has been constructed by using superconductors. To provide an understanding of how such a transformer would operate, some of the properties of type I and type II superconductors are reviewed.
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Paralleling DC/DC Switched Converters Based on Piezoelectric Transformers
2009 IEEE Industry Applications Society Annual Meeting, 2009One of the most important advantages in using piezoelectric transformers (PT) is that they operate at high frequencies with a very good efficiency (1), tipically higher than 95%. This paper presents a DC/DC converter based on two piezoelectric transformers which duplicates the output voltage frequency ripple, maintaining the switching frequency.
Juan Díaz 0001 +4 more
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EMI analysis of a DC-DC converter using a piezoelectric transformer
2009 35th Annual Conference of IEEE Industrial Electronics, 2009Power electronic converters based on piezoelectric transformer (PT) have been widely adopted in recent years due to their many inherent advantages such as safety, low housing profile and high power density. However, few studies have been conducted about noises emitted by PT converters [1].
Liu, Yuan-Ping +3 more
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3D TSV transformer design for DC-DC/AC-DC converter
2010 Proceedings 60th Electronic Components and Technology Conference (ECTC), 2010This paper presents a new concept of 3D transformer structure realized by through silicon via (TSV) technology. A set of different turn ratio transformers have been designed and analyzed. The results show that the proposed 3D TSV transformer possesses good performance with small size.
Bo Zhang +7 more
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Virtual Transformer Control for DC-DC Interlinking Converters in DC Microgrids
2019 IEEE Energy Conversion Congress and Exposition (ECCE), 2019In a DC microgrid, a converter connecting two DC buses is a DC-DC interlinking converter (ILC). In the ILCs, this paper proposes a simple control solution to handle two control issues simultaneously: a) high-voltage-side-series low-voltage-side-parallel (HSLP) modular ILC, b) control adaptability in different grid-working modes.
Haixu Shi +3 more
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