Bogomolov S. High-linear analog devices based on push-pull structures for multibit analog-digital systems

Object of research - the process of converting electrical signals in electronic circuits push-pull dc amplifier, as well as analog devices built on push-pull structure, the purpose of work is to improve the static and dynamic characteristics of analog devices built on a push-pull structures, as well as analog-to-digital systems to which they, the methods used electronic circuit theory, theory of errors, the theory of multi-bit information converters appointment system, computer modeling and mathematical tools of special functions, theoretical results - first obtained mathematical model static transfer characteristic input stage push-pull dc amplifier in which to paraphrase outputs applied current controlled oscillator, which is equivalent to intermediate and output stages, later on methods of circuit and functional organization of push-pull amplifier current and parametric blocks and compensating adjustment bias current zero, which, unlike existing set enable low medium and high level input resistance; later on methods to improve the accuracy of buffer devices based on push-pull structures, which, unlike existing enable action to neutralize a number of negative factors, particularly those that affect the parameters of transistors core circuit when changing modes; later on mathematical models of dynamic characteristics and nonlinear distortion push-pull amplifier input stages of the current in the frequency range in which unlike existing apparatus used complete elliptic integrals and entered idealization intermediate and output stages by replacing their current controlled oscillator; further development were analytical expressions for the transfer characteristic current-to-voltage converters and voltage-voltage, which included input impedance push-pull amplifier current, as well as other factors that influence the modes circuits. The practical results - the results of research developed a number of practical solutions patents of Ukraine, including functional and circuit diagrams push-pull dc amplifiers used in the construction high-linear analog devices, developed a practical scheme high-linear buffer devices based on push-pull structures built on transistors of different types conductivity, and device parametric adjustment bias current zero; designed and developed the layout of analog-to-digital board analyzer settings sound chains. Introduction degree - the results are introduced at the State Enterprise "National Radio Company of Ukraine" and the learning process of Vinnytsia National Technical University. Sphere of use - computer systems, high-information-measuring systems, multi-analog-digital systems.