The Power Electronics and drives, the area of Electrical Engineering that has the purpose of converting the energy of the mechanical, solar, wind, chemical and other forms for electric energy and its processing in the latter form, taking into consideration the quality, the technological upgrade and reliable operation of the system. With the continued development of the application of Power electronics and drives technology, the requirements for performance indicators and the reliability of electronic power devices are becoming more demanding. Specifically, power electronics are required to have a higher current density, higher operating temperature, failure overheat, higher operating voltage, the higher voltage drop in the state, faster transfer time, and space and military applications too, require stronger radiation resistance and vibration and resistance shock.
Especially in aerospace, aviation, ship, power transmission and transformation, engines, armored vehicles and other applications with hard conditions, the above requirements are more urgent. The evolution of technologies allowed the reduction of portable equipment, allowing the manufacture of laptops increasingly light and thin, as well as mobile phones smaller and with more availability of resources. Despite this reduction in size in these types of devices, chargers for their batteries are still required which are both cumbersome and consequently define a research demand in the area of miniaturization of this type of power source. Currently, electricity accounts for about 40% of global demand, and that percentage is expected to rise as countries cut their carbon emissions and switch to renewable energy sources. As electrification increases and the trend toward renewable energy is increasing, the use of technologies such as power electronics is becoming increasingly important. As technology evolves and power electronics and drives find more applications, new power devices with higher temperature capacity and lower losses continue to be developed. "Power electronics" excels in addressing as many of these applications as possible. The work includes the study of power diodes and rectifiers, power transistors and DC-DC converters, inverters, thyristors and thyristor converters, renewable energy, among others. With proposed problems and applications in PSpice, the book is a reference for students and professionals in electrical engineering, electronic engineering, mechatronics, and control and automation engineering. The area of Power Electronics and Electric Drive is aimed at the training of engineers specializing in power electronics and electric drive, both in undergraduate and master's and doctorate degrees, as well as the production, assimilation, and diffusion of scientific and technological knowledge in these two areas.
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