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ANALOG AND MIXED ELECTRONICS - 2004

I am implementing this part of the site with an idea to support the class exercises on Analog electronics and to inspire the students from the Faculty of Computer Systems. The views and opinioins expressed in the site are those of me and do not represent the official position of Technical University of Sofia.

I am also implementing another part in order to support the lab exercises on Digital electronics of the students from the Faculty of Communication Technology. It is a great pleasure to me to teach analog and digital electronics together as I am able to expose to the students the universal relationship between the phenomena in electronic circuits.

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Contents of the classes

Resources > related sites, courses, books, descriptions,

Library of the circuit building blocks "invented"

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Imagination is more important than knowledge
as knowledge is limited.
A. Einstein

Welcome to the classes of Analog electronics!

Analog circuitry is more art than science. Inventing a novel electronic circuit is a result of human fantasy, imagination and enthusiasm. Every, even the most elementary circuit, is based on clear and simple ideas, which may be derived from our routine. In order to really understand how circuits function, we have first to reveal the basic ideas they are grounded on. That is why we will not analyze cut-and-dried circuits (e.g. classic inverting summer) at the classes; instead, we will build them step-by-step from simpler blocks, every new circuit based on the previous more elementary one.

At the first classes we will derive from the basic electrical circuits the most elementary passive analog devices (voltage-to-current converter and current-to-voltage converter). Then, we will use them to build more complicated compound passive circuits (resistive voltage summer). After, we will add active components to the passive circuits thus getting transistor circuits. Finally, applying powerfull negative feedback principle, we will convert the imperfect passive circuits into almost ideal op-amp circuits (op-amp inverting summer). Doing that, you will be able to convert any passive circuit into an active one.