A Stabilized Transistor Oscillator

A Stabilized Transistor Oscillator

Author: Thomas F. Marker

Publisher:

Published: 1959

Total Pages: 22

ISBN-13:

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The transistorization of the Clapp and Pierce oscillator circuits is discussed with a view to realizing maximum frequency stability. Some circuit equations for conditions of oscillation and fractional frequency deviation from the tuned circuit frequency are derived, and the results of several designs are evaluated.


High Frequency Transistor Oscillators

High Frequency Transistor Oscillators

Author: Joseph Warren Kenny

Publisher:

Published: 1961

Total Pages: 110

ISBN-13:

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The operation of high frequency class-C alloy junction transistor oscillators is studied by use of a simplified version of the block-diagram representation for the transistor as developed by Bruun. For the simplified version of the block-diagram representation used, unilateral operation of the transistor is assumed. Expressions approximating the transistor time delay, peak ac input voltage, and the collector current pulse cutoff time are derived by use of the block-diagram equations. An analog circuit, derived from the block-diagram equations, is used to study the class-C operation of a typical alloy junction transistor, and the results of this study are found to compare accurately with the actual transistor operation. (Author).


Analysis and Stabilization of Junction Transistor Oscillators in the Lower Audio Range

Analysis and Stabilization of Junction Transistor Oscillators in the Lower Audio Range

Author:

Publisher:

Published: 1956

Total Pages:

ISBN-13:

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Transistor oscillators were analyzed using the lowfrequency equivalent circuit for the transistor. Conditions for oscillation and expressions for the frequency of oscillation and for stability of frequency with variations in the parameters of the transistor were derived. In addition, conditions for reactance stabilization were determined. Oscillators of very low audio frequency were designed. Tests were made which indicate the excellent frequency stability with changes in temperature. (auth).


Frequency of Self-Oscillations

Frequency of Self-Oscillations

Author: Janusz Groszkowski

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 543

ISBN-13: 1483280306

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Frequency of Self-Oscillations covers the realm of electric oscillations that plays an important role both in the scientific and technical aspects. This book is composed of nine chapters, and begins with the introduction to the alternating currents and oscillation. The succeeding chapters deal with the free oscillations in linear isolated systems. These topics are followed by discussions on self-oscillations in linear systems. Other chapters describe the self-oscillations in non-linear systems, the influence of linear elements on frequency of oscillations, and the electro mechanical oscillators. The final chapters consider the oscillations in a system with reactances in RC and LR circuits. This book will prove useful to electrical engineering students, teachers, researchers.


Symposia

Symposia

Author: Defense Documentation Center (U.S.)

Publisher:

Published: 1963

Total Pages: 290

ISBN-13:

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Analysis and Design of Autonomous Microwave Circuits

Analysis and Design of Autonomous Microwave Circuits

Author: Almudena Suarez

Publisher: John Wiley & Sons

Published: 2009-02-17

Total Pages: 729

ISBN-13: 0470385898

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Presents simulation techniques that substantially increase designers' control over the oscillationin autonomous circuits This book facilitates a sound understanding of the free-running oscillation mechanism, the start-up from the noise level, and the establishment of the steady-state oscillation. It deals with the operation principles and main characteristics of free-running and injection-locked oscillators, coupled oscillators, and parametric frequency dividers. Analysis and Design of Autonomous Microwave Circuits provides: An exploration of the main nonlinear-analysis methods, with emphasis on harmonic balance and envelope transient methods Techniques for the efficient simulation of the most common autonomous regimes A presentation and comparison of the main stability-analysis methods in the frequency domain A detailed examination of the instabilization mechanisms that delimit the operation bands of autonomous circuits Coverage of techniques used to eliminate common types of undesired behavior, such as spurious oscillations, hysteresis, and chaos A thorough presentation of the oscillator phase noise A comparison of the main methodologies of phase-noise analysis Techniques for autonomous circuit optimization, based on harmonic balance A consideration of different design objectives: presetting the oscillation frequency and output power, increasing efficiency, modifying the transient duration, and imposing operation bands Analysis and Design of Autonomous Microwave Circuits is a valuable resource for microwave designers, oscillator designers, and graduate students in RF microwave design.