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Item Details
| Title:
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PARAMETRIC ELECTRONICS
AN INTRODUCTION |
| By: |
K.-H. Locherer, C.D. Brandt |
| Format: |
Hardback |
| List price:
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£109.99 |
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| ISBN 10: |
354010514X |
| ISBN 13: |
9783540105145 |
| Publisher: |
SPRINGER-VERLAG BERLIN AND HEIDELBERG GMBH & CO. KG |
| Pub. date: |
1 December, 1981 |
| Series: |
Springer Series in Electronics and Photonics 6 |
| Pages: |
330 |
| Synopsis: |
In this chapter, first the parametric principle is illustrated by two simple examples, one mechanical and one electrical. Then the realization of time- varying reactances is explained, followed by a short history of "parametric electronics". This survey demonstrates the importance of parametric circuits in the field of low-noise microwave electronics as well as explains the organization of this book. 1.1 The Parametric Principle An oscillating system comprising a single or several time-varying energy- storing elements is called a parametric system; usually the variations are harmonic functions of time. Everybody knows one example of a mechanical parametric system from his childhood, namely, a swing. Therefore, we will start with this example though as it turns out, a swing is a rather compli- cated parametric system. Fortunately, the electrical parametric systems, which form the object of this book, are simpler. Figure 1.1 shows such a swing. If it is removed from its equilibrium position and the child stands on it in a fixed attitude, the swing oscillates with a certain amplitude, the magnitude of which decreases with time due to the mechanical friction of the system.To increase the amplitude of oscil- lation, the child changes positions during swinging: it crouches and straightens in a certain way twice during one cycle of the swing. |
| Illustrations: |
biography |
| Publication: |
Germany |
| Imprint: |
Springer-Verlag Berlin and Heidelberg GmbH & Co. K |
| Returns: |
Returnable |
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