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Electronically controlled multiphase sinusoidal oscillators using current amplifiers

✍ Scribed by George Souliotis; Costas Psychalinos

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
122 KB
Volume
37
Category
Article
ISSN
0098-9886

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✦ Synopsis

Abstract

A novel current‐mode multiphase oscillator topology is introduced in this letter. This is realized by employing current amplifiers and only grounded capacitors. Attractive characteristics offered by the new topology are the electronic adjustment of the oscillation frequency, the absence of passive resistors, and the requirement of only grounded capacitors. Comparison with the corresponding already published current follower based structure shows that the proposed topology has better performance in terms of the number of required active elements, the employment of passive resistors, and the ability for electronic adjustment of the oscillation frequency. Copyright © 2008 John Wiley & Sons, Ltd.

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