The evolution of power electronics

Wilson, Thomas G.

doi:10.1109/apec.1999.749482

Cited by 17 publications

(17 citation statements)

References 9 publications

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“…The industry of power electronics and switched mode power supplies has been revolutionized by the introduction of semiconductor switches. Since, the introduction of transistors (bipolar and field effect) engineers and scientists are pushing the innovation envelope, producing products with higher durability and efficiency [11]- [13]. Metal Oxide Semiconductor Field Effect Transistor (MOSFET) and Insulated Gate Bipolar Transistors (IGBT) have dominated the designs of switched mode power supplies [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Efficiency Investigation of A Protection and Correction Solid State Device for Low-Voltage Distribution Networks

Ioannou

Marouchos

Darwish

et al. 2019

2019 54th International Universities Power Engineering Conference (UPEC)

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A Solid State device which can limit and interrupt a fault, apply power factor correction and voltage regulation under normal conditions is presented with an investigation of its efficiency. The losses of the switching semiconductors are investigated by employing the PSIM Thermal Module. This work closely investigates the phase shift between the current and voltage waveforms for a 50Hz system and switching frequency of 5kHz before modelling and calculating the IGBT losses. For DC/DC converters the associated currents and voltages are in phase. However, as this work shows for switched capacitor circuits there is a 90 o phase shift between current and voltage. Finally, calculated losses are compared to simulated losses as well as to other methodologies suggested in literature.

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Section: Introductionmentioning

confidence: 99%

Efficiency Investigation of A Protection and Correction Solid State Device for Low-Voltage Distribution Networks

Ioannou

Marouchos

Darwish

et al. 2019

2019 54th International Universities Power Engineering Conference (UPEC)

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“…With increasing demand of high boost converters, various voltage boosting techniques are presented for multiple power applications. [1] New techniques and topologies have desired features to boosting up the voltage gain and high power conversion, these features is reliability with high density of power, stability and efficiency [2]. Sometimes, some negative features can be generate due to power conversion which is cost, ripple, loss, Power Supply Rejection Ratio (PSRR) and Low Electromagnetic Interference (EMI).…”

Section: Introductionmentioning

confidence: 99%

A Review of Voltage Boosting Techniques for Step-up DC-DC Converter

Gautam¹,

Sharma²,

Shukla³

2019

International Journal of Innovative Research in Electrical, Ele

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Boost dc-dc converters are employed to uplifting the level of voltage from input to a higher output level. This paper presents a review on voltage boosting techniques and their application for step-up dc-dc converter. These boosting techniques comprise switched capacitor, voltage multiplier, multistage, magnetic coupling and switched inductor (voltage lifting). All of these techniques consider demerits and merits depending on applications in term of efficiency, reliability, cost, power density and complexity. Due to many difficult topologies and additional components, these techniques can not to define frame work of boost dc-dc converter. Therefore, boost dc-dc converter present clear picture to clarify several techniques of boosting up the voltage.

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“…The transistor must first commutate the full current before the voltage can change. The voltage and current therefore never change at the same time and this implies that the rate of field energy change involves always either of the terms in (1). When the current is switched, a voltage is induced internally in the package so that the voltage on the far side of the chip differs from the externally applied voltage.…”

Section: Electromagnetic Transients On the Switchesmentioning

confidence: 99%

“…We reverse this: the current in the wire is set up by the energy transmitted through the medium around it." The general electromagnetic equation for describing the rate of storage and dissipation of energy inside an arbitrary volume is given by the following well-known equation that appears in almost every undergraduate textbook on electromagnetics: (1) where electric field intensity (V/m); magnetic field intensity (A/m); current density (A/m ); permittivity (F/m); permeability (H/m). The first term of the above equation represents the electromagnetic energy that crosses the surface of the volume and the vector cross product of the electric and magnetic fields gives the energy flux vector, commonly known as the Poynting vector [7] (2)…”

Section: Modeling Electromagnetic Energy Flowmentioning

confidence: 99%

Electromagnetic energy propagation in power electronic converters: toward future electromagnetic integration

Ferreira

Wyk

2001

Proc. IEEE

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I. POWER ELECTRONICS TOWARD ELECTROMAGNETIC ENERGY PROCESSING A. Shrinking Dimensions and Increasing FrequencyStudying the historical development of power electronics [1], [2] indicates that for a long time after its inception, a discrete, decoupled approach to modeling, design, and construction of power electronic converters was totally adequate. Electrical, thermal, and mechanical modeling and design was decoupled, while the sequential type of manufacturing in use was based on using separate components and after laying them out on a plane, wiring them together. This approach had a convenient, almost one-to-one correspondence to the lumped element circuit modeling, using ideal component transfer functions. This discrete, sequential thinking has permeated research, development, design methodology, and teaching to the present. Even hybrid, integrated power electronics modules are still constructed in a quasi-discrete way. However, continuing change in power device technology, a continuing increase in power density and/or frequency [3], [4] over the past decades have resulted in close electromagnetic, thermal, and mechanical coupling of all the "components" and interconnections that comprise the converter, accentuating undesirable side effects due to the close proximity of "components," materials used, interconnections necessary, etc. ("parasitics"). As the tendency toward integration of modules for the future continues, the integrated power processor is approaching (see Fig. 1), signaling the necessity for change in the present methodology for analysis and design. B. The Integrated Power Processor as Electromagnetic DeviceAt present, a power electronic converter may be characterized as a spread-out electromagnetic device. The quest for increased power density continues the reduction in dimensions and the tendency toward physical integration. This will eventually make the electromagnetic coupling between different subsections of the converter, the electromagnetic nature of inter-and intraconnections, and the electromagnetic nature of the switching processes dominant for determining the energy processing transfer function. For this eventual electromagnetic energy processor, it follows that the electromagnetic limits will be dominant and will have to be explored. As an aid to analyze this development of power electronics technology, the different fundamental functions performed in a converter had been defined in previous work [5]. This analysis did not include the thermal and mechanical functions and

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The evolution of power electronics

Cited by 17 publications

References 9 publications

Efficiency Investigation of A Protection and Correction Solid State Device for Low-Voltage Distribution Networks

Efficiency Investigation of A Protection and Correction Solid State Device for Low-Voltage Distribution Networks

A Review of Voltage Boosting Techniques for Step-up DC-DC Converter

Electromagnetic energy propagation in power electronic converters: toward future electromagnetic integration

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