Название: Lecture Notes in Analog Electronics: Discrete and Integrated Large Signal Amplifiers Автор: Vančo B. Litovski Издательство: Springer Год: 2023 Страниц: 374 Язык: английский Формат: pdf (true) Размер: 11.5 MB
This book discusses larger signal amplifiers (denoted as PA). Large signal amplifiers are dealing with signals whose magnitude is such that the operation of the active element can no longer be considered linear. They are usually designed to get as much power gain and efficiency as possible. That is why they are often called power amplifiers. In this book, two implementations of PA are considered. First, it is of interest to obtain large signals (current or voltage) at the output of a cascade of direct coupled amplifiers. In this case, linearity, frequency response, and speed are the most important requirements. Second are real power amplifiers where the power delivered to the load is of primary interest. Of course, efficiency, linearity, and high frequency response are of interest, too. A very special attention is paid to modern power electronic components such as Power BJT, VDMOS, IGBT, SiC MOS, and GaN HEMT. DC and switching properties of all these devices are studied in much detail. This book also includes a set of appendices which cover: solved problems, SPICE simulation results for selected set of circuits, and a short review of microelectronic technology process.
Large signal amplifiers are dealing with signals whose magnitude is such that the operation of the active element can no longer be considered linear. They are usually designed to get as much power gain and efficiency as possible. That is why they are often called power amplifiers. To make the text shorter in the sequel we will use the abbreviation PA to denote large signal amplifiers. This amplification is usually done in the last stage of signal amplification applications just before accessing the (usually non-electronic) load.
In this book we will consider two implementations of PA. First, it is of interest to obtain large signals (current or voltage) at the output of a cascade of direct-coupled amplifiers. In this case linearity, frequency response, and speed are the most important requirements. Second are real power amplifiers where the power delivered to the load is of primary interest. Of course, efficiency, linearity, and high-frequency response are of interest, too.
Large signal electronic amplification, alike other modern electronic technologies, is conservative in that within modern circuits one may find even the oldest technologies such as electronic valves. On the other side, the most advanced components such as SiCMOS or HEMT are taking their own place in the variety of circuit architectures depending on issues such as amount of delivered power, high-frequency response, efficiency, and distortions. To all power electronic components (except the electronic valves) will be devoted Chap. 4.2 of the book.
A wide variety of topologies and principle of operation are implemented in circuit synthesis of large signal and power amplifiers. We try in Chap. 4.3 to cover as much as possible in some cases going into details while in others giving fundamental information only. We really hope that this chapter will be a good start for deeper specialization in power and large signal amplifier design. We start with Class A amplifiers and go through Classes B, C, D, G, E, F, H to reach Class S.
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